An image of an engineer programming a booster set

How to Increase Water Pressure in Your House?

Booster Pumps

The most effective way to increase water pressure in your house is to install a water pressure pump — also known as a booster pump — which actively draws water from your supply and delivers it to your taps, showers, and appliances at a consistently higher pressure. At Mawdsleys Pump Services, we specialise in the supply and installation of booster pumps and booster sets, delivering swift, reliable solutions every day.

What We'll Cover in This Guide

In this blog post, we’ll walk you through everything you need to know about low water pressure in your home. First, we’ll explore the most common reasons why your water pressure may be insufficient. Then, we’ll outline the practical solutions available — with a particular focus on how a water pressure pump (booster pump) can deliver a lasting, cost-effective fix. Finally, we’ve included a short FAQ to answer the questions we hear most often from homeowners.

An image of booster set

Part 1: Why Is Your Water Pressure Not Sufficient?

Low water pressure is one of the most common complaints among UK homeowners. Before reaching for a solution, it’s important to understand the root cause. Here are the most likely reasons your pressure is falling short.

1. Your Mains Supply Pressure Is Too Low

Ofwat, the water services regulator for England and Wales, sets a guaranteed minimum supply pressure of 7 metres static head (0.7 bar) at the underground communication pipe serving your property, and most water companies aim to deliver at least 1.0 bar at your property boundary [Ofwat 2026]. Additionally, under Section 65 of the Water Industry Act 1991, water suppliers are legally obliged to maintain a constant supply at sufficient pressure to reach the top floor of every building within their region [Water Industry Act 1991].

In areas with ageing infrastructure, high elevation, or dense populations, mains pressure can fall short of what modern households expect. If you live at the end of a long supply line, on a hill, or in a densely built area, your incoming mains pressure may simply be insufficient to meet the demands of a modern home.

How to check: Your water supplier is required to investigate and address supply pressure shortfalls. WaterSafe — the UK’s register of approved plumbers — advises that as a practical guide, your kitchen tap (as the first tap on the supply) should be capable of filling a 4.5-litre bucket in 30 seconds with all other appliances off [WaterSafe 2026].

2. Peak Demand on the Network

Water pressure across the mains network often fluctuates throughout the day. Peak demand periods — typically 6–9am and 5–8pm — can cause noticeable pressure drops, particularly in densely populated areas [Bristol Water 2026]. If your pressure is borderline, you’ll often feel it most during these hours.

3. Shared Supply Pipes

Some older properties — particularly terraced houses and converted flats — share a single supply pipe with neighbouring homes. When a neighbour draws water simultaneously, pressure in your home drops [Rosebourne Plumbing 2026]. This is a structural issue that a water pressure pump can directly resolve.

4. Partially Closed Stop Valves

Your internal stop valve (stopcock) must be fully open for water to flow freely. Following building work, renovations, or a leak repair, valves are sometimes left partially closed — one of the most common and most easily overlooked causes of low pressure [CIPHE 2023]. Partially closed stopcocks, blocked inline filters, corroded internal pipework, and faulty PRVs are free fixes you should check first.

5. Corroded, Scaled, or Undersized Pipework

Over time, pipes — particularly older lead or steel ones — can corrode internally, reducing their effective bore. In hard water areas, limescale deposits build up inside pipes, showerheads, and tap aerators, restricting flow [Grundfos 2024]. Older properties often use ½-inch supply pipes that restrict water flow, while newer properties may have 1-inch mains that deliver significantly better performance. In severe cases, corroded pipes may need to be replaced entirely, as cleaning alone is insufficient.

6. A Faulty or Incorrectly Set Pressure-Reducing Valve (PRV)

Many homes are fitted with a pressure-reducing valve (PRV) to protect internal pipework from damage caused by excessively high incoming pressure. If your PRV is faulty or set too conservatively, it will artificially reduce pressure throughout your home — even if your mains supply is perfectly adequate [Bristol Water 2026]. PRV faults are a frequently cited but often overlooked cause of whole-house pressure loss.

7. Leaks in the System

Even a minor underground or internal leak can significantly reduce water pressure. Water escaping before it reaches your taps means reduced flow everywhere else, and leaks also cause water waste and, over time, structural damage [Severn Trent 2026]. If your pressure has dropped suddenly and no other cause is apparent, a leak must be investigated promptly.

8. Your Property's Elevation

In a gravity-fed system, 1 bar of pressure is generated for every 10 metres of height between the water source and your tap — so 2 bar equates to 20 metres of head, and 3 bar to 30 metres [Tank Services 2022]. If your property is elevated relative to the local water main, or if you have multiple storeys, the upper floors will always receive lower pressure than the ground floor. This is a fundamental physical constraint that a booster pump is specifically designed to overcome.

Part 2: What Are the Solutions?

Once you’ve identified the likely cause, here are the available solutions — ranging from quick checks you can carry out yourself, to professional installations that deliver a permanent fix.

Quick Checks First (No Cost)

Before investing in equipment, run through these free checks:

  • Open your stop valve fully. Locate your internal stopcock (usually under the kitchen sink) and ensure it is completely open.
  • Clean showerheads and tap aerators. Remove limescale deposits using a proprietary descaler or a white vinegar soak [Grundfos UK 2024].
  • Check for obvious leaks. Look under sinks, around cisterns, and along all visible pipework.
  • Contact your water supplier. If neighbours on your street are also affected, the problem may lie with the mains supply. Under the Water Industry Act 1991, your water supplier must investigate failures to meet the minimum pressure standard.
An image of an engineer programming a booster set

Have Your PRV Inspected

If you have a pressure-reducing valve fitted, have a qualified engineer inspect and calibrate it. A PRV set too low will throttle pressure across your entire home. This is a relatively inexpensive fix that can produce an immediate improvement.

Pipe Replacement

If your home has old, corroded, or undersized pipework, replacement is sometimes the only long-term solution. While this is the most disruptive and costly option, it restores full flow capacity and eliminates the risk of further blockage. Modern materials such as copper or cross-linked polyethylene (PEX) are highly durable and minimise future build-up [WarmZilla 2025]. Note that some buildings have pipes too narrow for a booster pump to work efficiently, even after installation — in those cases, pipe replacement may be a prerequisite.

Installing a Water Pressure Pump (Booster Pump) — The Most Effective Long-Term Solution

For homeowners where the cause is low mains pressure, shared supply pipes, or elevation — and where pipe condition is otherwise sound — installing a water pressure pump, commonly referred to as a booster pump, is the most reliable, efficient, and cost-effective permanent solution.

One of our engineer working on a booster set

How a Booster Pump Works

A water pressure pump (booster pump) draws water from a break tank and pushes it through your system at a higher, consistent pressure. Installed directly onto a cold water storage tank which is fed by your incoming cold water main, the pump activates automatically when it detects reduced flow or pressure, and switches off when demand stops — ensuring energy-efficient, on-demand performance with no manual intervention required.

As Grundfos — one of the world’s leading pump manufacturers — explains, booster pumps are specifically designed to increase water pressure and flow rate where the existing supply cannot meet household demand [Grundfos UK 2024].

What the Installation Involves

Under the Water Supply (Water Fittings) Regulations 1999, booster pumps capable of drawing more than 12 litres per minute cannot be connected directly to the mains supply — doing so would risk damaging the wider network and is illegal. Additionally, any booster set drawing more than 12 L/min must be formally declared to your local water company [Dutypoint 2026].

The correct and compliant installation method involves two components:

  • A break tank, which fills from the mains via a float valve and provides a dedicated, regulated water source for the pump. For flats and small homes, a break tank of 125–150 litres is often sufficient; larger houses typically require 200–250 litres.
  • The booster pump itself, which draws from the break tank and delivers pressurised water throughout the property.

The system typically installs in a utility room, under-stair cupboard, or garage. A WRAS-approved (Water Regulations Advisory Scheme) booster pump and break tank must be used for any installation connected to the mains supply [Dutypoint 2026]. Booster systems must be installed by a qualified plumber or heating engineer to meet UK water regulations and ensure proper operation.

Important installation note: Never install a booster pump directly onto copper pipework without a flex connector. Vibration from the pump transfers to the copper pipes and creates excessive noise. A qualified installer will account for this as standard.

Whole-House vs Single-Outlet Solutions vs Apartment Blocks

There are two primary configurations:

  • Whole Apartment Block sets — delivery consistent pressure to every property and using an invertor ramps up and down depending on demand. Often Twin, Three, or Four Booster sets are set up in different configurations.  Sometimes referred to as a duty assistant. Leading examples are Grundfos, Lowara, DAB, Wilo, Ebara.
  • Whole-house booster sets deliver consistent pressure to every tap, shower, and appliance throughout the property. These are the most comprehensive solution and are ideal where low pressure affects multiple outlets. Leading examples used in UK homes include the Grundfos SCALA2, DAB Esybox, and Wilo Isar BOOST5
  • Single-outlet booster pumps address pressure issues at one specific appliance or fixture — a shower in a top-floor bathroom, for example. These are more compact and lower cost, but do not resolve system-wide pressure deficiencies. Examples include the Stuart Turner Mainsboost Flomate and Salamander HomeBoost.

At Mawdsleys Pump Services, we specialise in the full range of booster pump and booster set configurations, and we’ll recommend the right solution for your specific property and usage profile.

The Benefits of a Booster Pump Installation

Once installed, a water pressure pump delivers immediate and lasting improvements

  • Consistent shower pressure, even when other appliances are running simultaneously
  • Faster filling of baths, washing machines, and dishwashers
  • Better performance from combi boilers, which often require a minimum inlet pressure to operate correctly
  • Improved water flow to upper floors, eliminating the pressure drop between ground and first or second floor
  • Automatic, silent operation with no manual switching required

Pressure ceiling: Water pressure inside the home must not exceed 4 bar (60 psi), as pressures above this level can damage internal pipework and fittings. A correctly specified booster pump and PRV will ensure your system stays within safe limits.

Leading pump manufacturers trusted by Mawdsleys Pump Services include Grundfos, Lowara, DAB and Ebara— all of which produce WRAS-approved booster pumps that comply fully with UK water regulations.

How Mawdsleys Pump Services Can Help

At Mawdsleys Pump Services, we are booster pump and booster set specialists. Our value proposition is simple: Reliable, Rapid, Informative — we deliver swift solutions for your pump equipment every day.

Whether you need expert advice on the right water pressure pump for your home or Apartment block , a fully compliant installation, or 24/7 support following an emergency, our team is ready to help. We’re proud of our consistently strong Google Reviews, which reflect our commitment to speed of service and precise, honest communication at every stage.

If you’re experiencing low water pressure, don’t put up with it any longer. Contact Mawdsleys Pump Services today for a prompt, professional assessment.

Get in touch

In England and Wales, Ofwat requires water suppliers to maintain a guaranteed minimum of 0.7 bar (7 metres static head) at the communication pipe. In practice, most water companies aim to deliver at least 1.0 bar to your property boundary [Ofwat 2025]. Anything consistently below 1 bar is considered low pressure and is worth investigating.

No. Under the Water Supply (Water Fittings) Regulations 1999, it is illegal to connect a pump drawing more than 12 litres per minute directly to the mains supply. A correctly installed booster pump must draw from a break tank fed from the mains. This protects the wider water network and ensures your installation is fully compliant.

A combi boiler requires adequate mains inlet pressure to function correctly. If your boiler is underperforming due to low incoming pressure, a water pressure pump installed upstream of the boiler can often resolve the issue. We recommend consulting a qualified engineer to confirm compatibility with your specific boiler model.

Costs vary depending on the size and specification of the pump, the complexity of the installation, and whether a break tank is required. As booster pump specialists, Mawdsleys Pump Services offers competitive, transparent pricing and will provide a clear quote before any work begins.

A good starting point is to contact your water supplier and ask them to measure the pressure at your property boundary. If pressure at the boundary is within the required range but is low inside your home, the issue lies within your own pipework — and a booster pump or internal investigation is the appropriate next step. A qualified pump engineer can carry out a full diagnostic assessment.

A quality booster pump from a reputable manufacturer — such as Grundfos, Lowara, or DAB — typically lasts between 8 and 15 years with proper installation and routine maintenance. Regular servicing is recommended to maintain peak performance and identify any wear before it becomes a problem.

Yes. Mawdsleys Pump Services offers 24/7 support. We understand that a loss of water pressure is not a problem that can wait — and our team is available around the clock to provide rapid, reliable assistance.

Booster Pump FAQs

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References

Ofwat, 2026, The guaranteed standards scheme (GSS) summary of standards and conditions, https://www.ofwat.gov.uk/wp-content/uploads/2026/02/The-guaranteed-standards-scheme-GSS-summary-of-standards-and-conditions-June-2026.pdf

Water Industry Act 1991, https://www.legislation.gov.uk/ukpga/1991/56/contentshttps://www.watersafe.org.uk/advice/common_plumbing_questions1/pressure/what_is_the_minimum_water_pressure_that_a_water_supplier_must_supply/

WaterSafe, 2026, What is the minimum water pressure that a water supplier must supply?, https://www.watersafe.org.uk/advice/common_plumbing_questions1/pressure/what_is_the_minimum_water_pressure_that_a_water_supplier_must_supply/

Bristol Water, 2026, What to do if you have a problem with water pressure, https://www.bristolwater.co.uk/home/account-and-services/water-pressure-management

Rosebourne Plumbing, 2026, Low Water Pressure?, https://rosebourneplumbing.co.uk/blog/low-water-pressure-guide-causes-solutions-uk

CIPHE, 2023, Summer DIY: Dos and Don’ts, https://www.ciphe.org.uk/news-and-advice/press-releases/summer-diy/

Grundfos, 2024, Why is my water pressure low? A guide for homeowners, https://www.grundfos.com/uk/learn/research-and-insights/why-is-my-water-pressure-low-a-guide-for-homeowners

Bristol Water, 2026, Your Water, https://www.bristolwater.co.uk/faq-individual-0

Severn Trent, 2026, Our customer guide to our water pressure policy, https://www.stwater.co.uk/help-and-contact/customer-information/customer-guide-to-our-water-pressure-policy/

Tank Services, 2022, How to Boost Water Pressure: Expert Guide for Homes and Businesses, https://www.tankservices.co.uk/blog/how-to-increase-or-boost-water-pressure

WarmZilla, 2025, What causes low water pressure in my home, https://www.warmzilla.co.uk/blog/what-causes-low-water-pressure-in-my-home

The Water Supply (Water Fittings) Regulations 1999, https://www.legislation.gov.uk/uksi/1999/1148/contents

Dutypoint, 2025, Dutypoint’s Guide to Water Pressure in London and How to Solve It, https://www.dutypoint.com/water-pressure-in-london/

Booster set image

7 Common Problems with Booster Pumps and How to Fix Them

Booster Pumps

What Is a Water Booster Pump — and Why Do They Fail?

Booster pumping systems — also called booster sets, water pressure pumps, or pressure pumps — are used to increase water pressure in buildings where it would otherwise be too low. They’re essential in apartment blocks, hotels, schools, leisure centres, and any building where every outlet needs reliable pressure.

When a water pressure pump fails or stops working properly, the impact is immediate. Residents may lose the pressure needed to shower, flush a toilet, or run a tap — and in commercial buildings, a pressure pump failure can shut down operations entirely.

This guide covers the seven most common causes of booster pump and pressure pump failure, what you can check yourself, and when you need to call a pump repair engineer. If your pressure pump isn’t working right now, call us on 0117 954 8030 — our engineers are available for emergency pressure pump repair across the South West.

Booster set image

1. Water Pressure Pump Not Working — Pump Won’t Start

The symptom: No water reaches any outlet fed by the system. The pump may be silent, or it may hum or click without actually running. This is one of the most common reasons customers call us for emergency pressure pump repair.

Why it happens: A pump that won’t start is usually down to a power failure, a low water level in the break tank (which triggers low-level protection and stops the pump as a safety measure), a tripped breaker, a faulty sensor, a control panel fault, or motor failure.

What to check yourself: Confirm there isn’t a power cut affecting the building, and check whether the pump needs to be manually reset after one. Check that the break tank has sufficient water and that the ball valve hasn’t failed.

When to call a professional: If power and water level both check out and the pump still won’t start, stop resetting it — repeated resets can mask a developing electrical or mechanical fault and cause further damage. Arrange a full inspection from a pump engineer.

2. High Running Noise

The symptom: The pump is noticeably louder than usual — grinding, humming, rattling, or vibrating noises that disturb building users or weren’t there before.

Why it happens: Common causes include high demand on the system, incorrect pump positioning, worn or ageing components, and vibration transferring through the pump or pipework into the building structure.

What to check yourself: Check the pump isn’t being asked to meet more demand than it’s rated for, and look for obvious vibration transfer through pipe fixings or the pump’s mounting.

When to call a professional: If noise persists after basic checks, or you’re not confident assessing demand and component wear yourself, arrange a maintenance visit. Vibration isolators such as mats, bases, and springs are often fitted by an engineer as a permanent fix. Read more in our guide to best practice for controlling noise in booster pumping systems.

An image of an engineer programming a booster set

3. Leakage

The symptom: Visible water around the pump unit, pooling, damp patches, or a noticeable drop in system pressure with no other explanation.

Why it happens: Leaks are commonly caused by broken valves, worn or cracked seals, or water pressure being set too high for the system to handle.

What to check yourself: Visually inspect the pump and its components for the source of the leak — valves, seals, and pipe joints are the most likely culprits.

When to call a professional: If you can’t identify the source, or the leak is from inside the pump casing itself, arrange an inspection rather than letting it continue, as a leak can develop into a full pressure pump failure. If you’re responsible for ongoing maintenance, our free booster pump maintenance inspection checklist covers the key components worth checking regularly.

4. Contamination

The symptom: Discoloured water, an unusual smell or taste, or a positive result from water testing.

Why it happens: Contamination is usually caused by inadequate cleaning of the pump or poor maintenance of the cold water storage tank feeding it.

What to check yourself: Nothing — this is not a DIY check. Do not continue to use water from the system if you suspect contamination.

When to call a professional: Immediately. Switch the pump off and arrange a full inspection with an engineer who can test, clean, and disinfect the cold water tank. This is a health and safety issue, not just a mechanical one.

Leakage and Contamination are serious emergencies which require immediate action! Get in touch with us if you need fast 24/7 support.

Contact us

Low water pressure in showerhead

5. Low Water Pressure

The symptom: Outlets fed by the booster set deliver weaker water flow than expected — showers losing pressure, taps running slow, or pressure that drops further during periods of high demand.

Why it happens: A drop in pressure can be caused by high demand on the system, the age and suitability of the pump for current usage, a faulty sensor, valve failure, or a leak elsewhere in the system.

What to check yourself: Note whether low pressure happens at specific times (suggesting a demand issue) or constantly (suggesting a mechanical fault), and do a visual inspection of the unit for obvious leaks or damage.

When to call a professional: If a visual inspection doesn’t reveal the cause, arrange for an engineer to assess whether a repair will resolve the issue or whether the pump is no longer suited to current demand and needs replacing. For more detail, see our guide on how to improve water pressure.

6. High Operating Costs

The symptom: A noticeable rise in energy bills that can’t be fully explained by energy price increases.

Why it happens: As pressure pumps age, they become less efficient — particularly when they aren’t professionally maintained. Older pumps lack the efficiency features built into modern units.

What to check yourself: Compare your current bills against historical usage and check when the pump was last serviced or replaced. Persistent inefficiency despite regular maintenance is a sign the unit may be due an upgrade.

When to call a professional: If your bills are rising and you’re unsure why, arrange a pump energy check to get an accurate picture of current performance and whether upgrading could save you money while reducing your carbon footprint.

7. Pressure is too High

The symptom: Pressure noticeably higher than the system is designed for, sometimes accompanied by banging pipes, leaks, or premature wear on fittings.

Why it happens: The most common cause is a faulty pressure relief valve (PRV) — either set too high or stuck open — putting unnecessary strain on the pump and pipework without any benefit to building occupants.

What to check yourself: Check the pressure gauge reading against the system’s intended operating pressure, and try manually reducing the pressure if the controls allow it.

When to call a professional: If the PRV won’t close, or pressure doesn’t drop after adjustment, arrange an inspection from an engineer — a stuck PRV will continue to strain the system until it’s repaired or replaced.

Pressure Pump Troubleshooting: Quick Reference Table

For a fast diagnostic reference, here’s a summary of all seven issues:

#SymptomLikely CauseQuick CheckCall a Professional If…
1Pump won’t start, no water at outletsPower failure, low break tank level, tripped breaker, sensor or motor faultCheck power supply and break tank water levelPower and water are fine but pump still won’t start
2High running noiseHigh demand, poor positioning, worn parts, vibrationCheck demand level and pipe/mounting vibrationNoise persists after basic checks
3LeakageBroken valves, worn seals, excess pressureVisually inspect valves, seals, and jointsSource can’t be identified, or leak is from inside the casing
4Contamination (discoloured/smelly water)Poor pump or tank cleaning/maintenanceNone — do not use the waterAlways — switch off and call immediately
5Low water pressureHigh demand, ageing pump, faulty sensor, valve failure, leakNote when it happens; check for visible leaks/damageCause isn’t obvious from a visual check
6High operating costsAgeing or inefficient pumpCompare bills to usage and last service dateBills keep rising with no clear explanation
7Pressure too highFaulty or stuck pressure relief valve (PRV)Check gauge against intended pressure; try manual adjustmentPRV won’t close or pressure won’t drop

If your issue isn’t resolved by the checks above, our engineers are available 24/7 for pressure pump repair across the South West and South Wales — call 0117 954 8030.

Water Pump Repair Near You

If you’ve worked through the checks above and your pressure pump still isn’t working, or you’d rather not risk further damage, it’s time to call in a professional.

Mawdsleys Pump Services provide pressure pump repair and water booster pump repair across the South West and South Wales, with engineers covering Bristol, Bath, Gloucester, Swindon, Cardiff, and the surrounding areas. We work on systems from all major manufacturers and carry extensive parts stock, so most pressure pump repairs are completed in a single visit.

Searching for a “water pump repair near me”? Get in touch or call 0117 954 8030 — our team is available 24/7 for emergency pressure pump repair.

Pressure Pump Failure FAQs

The most common causes are power failure, low water level in the break tank, a tripped breaker, sensor failure, or motor failure. Check the power supply and tank level first — if the pump still won’t start, it’s best to arrange an inspection rather than keep resetting it, as this can cause further damage.

This is usually caused by a faulty pressure switch, a worn impeller, a leak in the system, or the pump being undersized for current demand. A visual inspection can rule out obvious causes, but diagnosing the exact fault usually needs a qualified engineer.

It depends on the age of the pump, the cost of the repair, and how efficiently it’s running. Our engineers will always explain whether a repair makes sense or whether replacement will be more cost-effective in the long run, factoring in running costs as well as the upfront price.

We offer 24/7 emergency pressure pump repair across the South West and South Wales. In most cases, we can have an engineer on-site the same day, and many repairs are completed in a single visit thanks to our parts stock.

If your pressure pump has failed completely, switch it off at the isolator if it’s tripping repeatedly, and avoid repeatedly resetting it. If you suspect a leak or contamination, isolate the system and call us immediately — these need urgent attention.

Booster Pump Set

How Much Could a Booster Pump Energy Check Save You?

AdviceBooster Pumps

 

Booster pumps are an effective method of increasing water pressure and ensuring building users can access water of a suitable pressure, regardless of the number of outlets in use or size of the building.

Booster pumps are often used in larger sized buildings with multiple occupants such as flats, apartment blocks, office buildings, hotels, schools and Government buildings where mains pressure alone isn’t enough to meet demands.

Many booster pumps we find in operation are old units with antiquated controls which become less economical and efficient over time. With environmental impact becoming very important and the cost of electricity always rising, it can pay dividends to understand how economical your pump is and take steps to improve it.

Read our blog post to find out more about the considerable savings that can be unearthed through an energy check, the benefits of a modern booster pump and the importance of keeping your booster set professionally maintained.

Booster Set Energy Check Savings

A pump energy check gives you a clear view of your pumps current performance and the associated cost savings that could be made by upgrading your existing booster pumping system. When carrying out an energy check, the following factors are considered:

  • Pump & head flow
  • Motor power data
  • Operating hours per year
  • Age of pump
  • Pump use
  • Operating needs

From this data, the test can ascertain what energy savings could be made with the installation of a new booster set, including how long the payback time would be.

At Mawdsleys Pumps, we regularly carry out energy checks in line with the ISO 14414 Pump Energy Assessment Standards before making system recommendations to clients, often revealing thousands of pounds worth of energy savings that could be made.

In a recent test we carried out, we uncovered potential savings of over £40,000 over a 10 year period at an NHS facility in Bristol, read the full case study here.

The Benefits of a Modern Booster Set

Modern booster sets are made up of several components designed to enable adequate water pressure to any sized building. As technology has improved, so have the number of benefits a booster set offers, the key advantages are:

  • Variable Speed Drives – Modern booster sets are fitted with variable speed drives, these drives have pressure sensors and flow sensors which keep the pressure constant with varying demand, extending the life of the pump and meaning you only pay for what you use.
  • High Efficiency – As technology has improved, booster pumps have become more and efficient, offering adequate pressure on a normal mains water supply.
  • Environmental Benefits – As a result of improved efficiency and variable speed technology, modern booster sets use less energy, reducing the carbon footprint.
  • Duty, Standby and Assist – Modern booster sets are usually compromised of multiple pumps, meaning that there is a backup should the demand exceed the main pump, plus a standby pump should one fail. These are known as ‘duty’, ‘duty – assist’ and ‘standby’ pumps.
  • Lower Running Costs – Equally, improved efficiency and reduced energy use results in lower overall running costs, building owners can expect a booster pump to pay off its installation cost long before the end of its life.

Keeping Your Booster Set Well Maintained

Due to their critical nature, there is never a good time for a booster pump to fail or start to underperform.

In order to keep your booster set running at maximum efficiency, it is recommended that you have your pump serviced by a professional pump engineer.

As well as keeping the pump running at full strength, regular servicing ensures that any developing faults are rectified, reducing the risk of breakdown.

Additionally, there are maintenance checks such as visual inspections that can be carried out every month to complement annual servicing.

To help keep on top of routine maintenance, we have created a free inspection checklist for responsible persons. Click the button below to download your copy.

An image promoting our free booster pump inspection checklist

Booster Pump Installation, Energy Checks & Service Contracts

At Mawdsleys Pumps, we offer an end to end service for the design, installation, repair and ongoing servicing of booster sets; with servicing contracts including regular preventative maintenance to keep your pump running efficiently, which will reduce risk of breakdown.

We also carry out energy checks for booster pumping systems, to highlight and inefficiencies in your system and suggest upgrades which could improve efficiency, reduce energy usage and save on running costs.

For more information about our energy checks, booster pump service or maintenance contracts, give one of our expert team a call today on 0117 954 8030 or fill out a contact form and we will get back to you.

An image of a booster set

How To Improve Water Pressure

AdviceBooster Pumps

Water pressure is an essential part of any building with a water supply, yet it’s often taken for granted until something goes wrong and the pressure drops. Low water pressure can be caused by a number of factors, such as high demand and can affect every water outlet in the premises, including toilets, showers, taps, pumps, washing machines, and water tanks.

Experiencing low water pressure is extremely frustrating for building users and in commercial and agricultural environments, can result in huge drops in efficiency due to the extra time taken to output water. Read our latest blog post to find out more about the causes of low water pressure and how you can improve your water pressure.

Steps To Improving Your Water Pressure

If you’ve noticed a drop in your water pressure, here are steps you can take to try and increase it once more:

  • Check that the outlet for your water is not clogged up or blocked in any way
  • Check that the water valves for your property are fully open
  • Check for blockages in your water system
  • Check for any leaks in your water system
  • Ensure that your current pumping system meets your requirements
  • Test your appliances at peak times vs quieter times to see if there is a difference in the water pressure you receive
  • Invest in appliances such as power showers which can enable higher output even when overall pressure is lower

If you own the premises, you can take it upon yourself to check these or contact a professional if you do not have the expertise.

However, if you are a building user or rent a space in the building, it is likely that you will need to contact the landlord of the building to investigate further.

An image of a booster set system

Benefits of a Booster Pumping System

If you are still struggling with water pressure, it is likely that you need to consider taking measures to increase the pressure of water to your system, this can be done very effectively with a booster pump.

Booster pumps are installed to increase the water pressure throughout a building and are an effective means of improvement in any type of building.

They can be installed in most properties whether you rely on a typical water supply or get your water from a private supply (such as a borehole or well).

A booster pump is a long term investment that will serve your property for years if properly maintained, download our free booster pump inspection checklist to find out more.

Booster pumps are available to suit any premises, whether it’s fixed speed or a range of multiple pump variable speed sets to meet demands and offer energy saving benefits.

Booster Pump Maintenance: Why It Matters

If you’ve already got a booster pump installed and you’re still experiencing low water pressure, the cause is very often poor or missed maintenance rather than the pump being undersized or unsuitable.

Like any mechanical system, booster pumps need regular attention to keep performing at the level they were designed for. Without it, common faults develop gradually — worn seals, failing sensors, clogged filters, or a control panel that’s no longer calibrated correctly — and pressure drops off long before the pump fails completely.

What’s typically included in a booster pump service:

  • Inspection of pump components — seals, valves, bearings, and the motor — for wear or damage
  • Testing of pressure sensors and control panel settings against the system’s intended operating pressure
  • Checking the break tank, ball valve, and low-level protection are functioning correctly
  • Identifying vibration, noise, or leaks before they develop into a larger fault
  • Confirming the pump is still correctly sized for current building demand

How often should a booster pump be serviced?

Most commercial and residential booster sets benefit from a service at least once a year, though buildings with higher demand — such as hotels, leisure centres, or apartment blocks — may need more frequent visits. A planned maintenance contract takes the guesswork out of this by scheduling visits automatically and giving you priority access if something does go wrong between services.

Regular booster pump maintenance is also one of the most cost-effective ways to avoid a full pump failure, since most of the faults that lead to total breakdown are easy and inexpensive to catch early.

Download our free booster pump maintenance inspection checklist to see what should be checked between professional service visits, or find out more about our maintenance and repair service.

Frequently Asked Questions

Can changing a shower head improve water pressure?

Yes, in some cases simply changing the shower head can improve the water pressure you get.

Shower heads can also become blocked up with limescale which restricts the amount of water that can be output, so in some cases a simple clean will help improve the water pressure.

Additionally, some showers have water saving heads that intentionally reduce the water pressure to save money.

How to improve water pressure from a well?

If you rely on a well as your water supply, it’s critical that you get adequate pressure from your system given that there is no backup.

A booster pumping system can be used to effectively increase the pressure received from private domestic water sources.

Can I install a booster pump to the mains water pump?

Yes, a booster pump can be installed to the mains water pump.

However, due to water supply regulations, pumps that draw more than 12 litres of water per minute cannot be connected to a supply pipe without permission, therefore, it’s typically a better option to install a separate water tank for your booster pump.

It’s highly recommended that you engage with a booster pump installation company who will be able to recommend the best course of action based on your situation.

What does a booster pump service include?

A typical booster pump service involves a full inspection of the pump’s mechanical components, testing of pressure sensors and control settings, a check of the break tank and safety devices, and an assessment of whether the pump is still correctly sized for current demand. Our engineers will flag any developing issues and explain whether they need immediate attention or can be monitored.

How much does booster pump maintenance cost?

Costs vary depending on the size and complexity of the system, and whether you’re booking a one-off service or an ongoing maintenance contract. A maintenance contract is usually the most cost-effective option for buildings that rely heavily on consistent water pressure, since it includes scheduled visits and priority emergency cover. Call us on 0117 954 8030 for a tailored quote based on your system.

Talk to the Experts

We hope this post has given you some ideas on how to improve the water pressure at your premises, and how regular booster pump maintenance can stop the problem coming back.

If you’re still struggling with water pressure, or want to arrange a booster pump service or maintenance contract, talk to Mawdsleys Pumps today.

We’re experts in booster pumping systems and have installed and maintained units in locations including domestic properties, schools, hotels, and apartments, and regularly work with facilities management companies to keep booster systems performing well.

Call our expert team today on 0117 954 8030 or fill out a contact form and we’ll get back to you.

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Why Water Pressure Matters

Low water pressure can create several issues in all environments, whether it’s a domestic premises, commercial office or leisure facility.  The most common complaints about low water pressure include:

  • Showers and taps can be reduced to a trickle of water
  • Toilets may not flush properly
  • Results in reduced efficiency in commercial premises
  • Any activities requiring higher pressure, such as irrigation or high-pressure cleaning, may not be possible
  • Certain modern appliances do not work below specific pressure thresholds
  • Equally, certain pumping equipment requires a specific amount of pressure to work

All of this can contribute to a poor experience for the users of the building, and in a commercial building such as a block of flats, gyms, schools or a hotel, is likely to attract complaints.

What are the Causes of Low Water Pressure?

Water pressure is effectively the force that transports water through your pipes, so lower water pressure means that the water flows at a lower velocity.

There are a number of reasons why your water pressure may have dropped. The most common reasons for low water pressure are:

  • When demand for water is higher, pressure may be impacted
  • Properties that have a shared supply are more likely to experience issues with water pressure
  • In larger buildings such as hotels, offices, or blocks of flats, water outlets at the top of the building tend to have lower pressure
  • In gravity fed systems, your water pressure depends on how high the source of water is above your property
  • Additionally, the distance your property is away from the water source will impact the pressure you get
  • Old or damaged pumping facilities may no longer be able to cope with the demands of the building
  • Pipes restricting the flow of water due to diameter, corrosion, blockages, and leaks can reduce the water pressure
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An image of booster set

Controlling Noise in Booster Pumping Systems

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If you’re a facilities manager, public building owner or a tenant living within an apartment or block of flats; you will understand the vital role an efficient booster pumping system plays – providing water of sufficient pressure to every water point within the building.

However, one of the main reasons we are called out to attend booster pumping systems is due to noise coming from the system, attracting complaints from residents who may have been woken in the early hours of the morning by the pump.

In our latest blog post, we’ll cover off reasons why booster pumps make noise, how you can control it and essential regular maintenance checks you can carry out to ensure your pumping system runs efficiently without generating excessive noise.

Why Do Booster Pumping Systems Make Noise?

The key reasons booster pumps make noise are:

  • Higher water demand than the pump can facilitate.
  • Pump positioned incorrectly.
  • Worn components such as bearings.
  • Old or unmaintained pump.
  • Excessive vibration from the pump.
  • Excessive vibration from pipework within the building.
An image of an engineer programming a booster set

How Can I Stop My Booster Pumping System Making Noise?

With a few controls and proper maintenance, noise from booster pumps can be adequately controlled without impacting on the performance of the system:

Use the Right Pump for the job

Using the right tool for the job is key to achieving any task, and it’s the same with your pumping system. In older buildings, we often find that older and inefficient systems are being used to boost water pressure.

Not only does this mean lower efficiency and higher bills, but during times when everyone in the facility is using water, such as the morning shower, all pumps in the booster set are needed to provide adequate water, creating excessive noise.

In an efficient system that’s tailored to building requirements, the whole bank of boosters would never need to run simultaneously to supply the amount of water required.

Position the Pump Correctly

Following the selection of the most suitable pump for the job, the location of the pump is essential for achieving zero sound disruption for building users. In most cases, we recommend that the pump be installed in an enclosed space such as a soundproofed control room.

If your pump is already set in place and relocation would be impractical and expensive, it is still possible to erect a control room or sound barrier around the pump to reduce noise.

Note that regardless of your pump positioning, if you are using an inadequate system, complete cancellation of noise will be difficult to achieve.

A photo of an anti-vibration mount

 

Use Vibration Isolators

One of the most common causes of noise from booster pumps is vibrations; these vibrations generally come from the pipes or the pumping system itself vibrating against the structure of the building.

Using vibration isolators is a cost-effective way of reducing noise from your pump – the most effective method will depend on the level of vibrations your system is producing:

Low Level of Vibration – If your pumping system is producing a low level of noise and vibration, a vibration mat is a simple and cost-effective method of control. This is essentially a thick mat or pad on which the pump is placed to prevent vibrations from being carried up the building.

Mid Level Vibration – If your pumping system is producing a medium level of noise and vibration, vibration springs or mounts can be fitted, which absorb the vibrations coming from the pump.

High Level of Vibration – If your pump is producing a high level of vibrations, an inertia base can be constructed – this is a robust measure that will absorb the maximum amount of vibration.

Vibrations Coming from Pipework – If you find that the vibrations are coming from your pipes as opposed to your pump – fitting vibration isolators such as springs to pipework will prevent them from vibrating against the building.

If you find your pump is vibrating excessively or the vibrations are getting worse over time, call a specialist to come and inspect – it could be that vital components within your pump have become damaged.

Ensure Pump is Properly Maintained

As pumping systems age, vital components such as bearings wear down – creating unwanted noise. It is essential that these components are regularly inspected and replaced as required to prevent noise and further damage to the system.

Putting a proper pump maintenance plan in place is the most effective and cost efficient way of controlling noise and preventing failure within your system.

Essential Maintenance Checklist for Booster Pumping Systems

If you’re responsible for a booster pumping system, regular checks are the most effective way to catch noise-causing faults before they develop into something more serious — or before a full pressure pump failure.

What you can check yourself, weekly

A basic in-house visual inspection should cover:

  • Check all valves for free travel
  • Check water and air pressure gauges
  • Test the alarm
  • Inspect bearings and lubricate as required
  • Check for any damage to the pump or its main components
  • Note any unusual noises or “struggling” from the system during start-up
  • Note any excessive vibration or unusual noise from the pump
  • Note the temperature within the plant room

To help keep on top of routine checks, download our free booster pump maintenance inspection checklist.

An image promoting our free booster pump inspection checklist

What a professional booster pump service includes

Weekly visual checks are useful, but they’re not a substitute for a full professional service. A booster pump service typically goes further than an in-house inspection and includes:

  • A detailed mechanical inspection of pumps, bearings, seals, and valves
  • Testing and calibration of pressure sensors and control panel settings
  • Identifying early signs of wear that a visual check alone wouldn’t catch
  • Servicing or replacing worn components such as bearings before they fail
  • A written report confirming the system’s condition and any recommended work

Most commercial booster pumping systems should have a professional service at least once a year, with more frequent visits recommended for buildings with higher demand, such as apartment blocks, hotels, or leisure centres. A planned maintenance contract takes care of this automatically and gives you priority access to support if a fault does develop between visits.

Find out more about our booster pump maintenance and service plans.

Ensure Pump is Properly Maintained

As pumping systems age, vital components such as bearings wear down – creating unwanted noise. It is essential that these components are regularly inspected and replaced as required to prevent noise and further damage to the system.

Putting a proper pump maintenance plan in place is the most effective and cost efficient way of controlling noise and preventing failure within your system.

Nationwide Booster Pump Installation, Repair and Maintenance

At Mawdsleys Pumps, we provide an all-encompassing service for the design, installation, ongoing maintenance, and emergency repair of booster pumping systems. We can also help resolve booster systems that are creating excessive noise, whether the cause is a maintenance issue, an undersized pump, or poor positioning.

Whether you’re considering a new booster pumping installation, need a one-off service, or want to set up an ongoing maintenance plan, we can help. Call us today on 0117 954 8030 or fill out the form below and one of our team will get back to you.

Booster Pump Maintenance and Service FAQs

Most commercial booster pumping systems benefit from a professional service at least once a year. Buildings with higher water demand, such as hotels, apartment blocks, or leisure centres, may need more frequent visits. Weekly in-house visual checks should be carried out in addition to, not instead of, a professional service.

In-house checks are visual — looking for obvious damage, noise, vibration, or pressure issues. A professional service goes further, including hands-on inspection of internal components, calibration of sensors and controls, and replacement of worn parts before they cause a failure. The two work together: regular in-house checks catch obvious problems early, while a professional service catches the issues you can’t see.

Yes — it’s one of the most common causes. As components like bearings wear down without being serviced, they generate noise that gets progressively worse. A proper maintenance plan is usually the most cost-effective way to control noise and prevent the fault from becoming a full pump failure.

This depends on the size and complexity of your system and whether you’re booking a one-off visit or an ongoing maintenance contract. A maintenance contract is usually more cost-effective for buildings that depend on consistent water pressure, since it includes scheduled visits and priority support. Call us on 0117 954 8030 for a tailored quote.

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How Working from Home Could Be Impacting Your Pumps

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One of the biggest impacts on people’s daily routines because of COVID-19 is the increased amount of time they are spending at home, with many continuing to work remotely where they can to adhere to lockdown rules.

Figures from the Office for National Statistics reveal that in April 2020, when the first lockdown was announced, 46.6% of Britain’s workforce did some work at home.

The shift to remote working has posed many challenges, with businesses and staff needing to adapt quickly to ensure staff can work efficiently from home whilst retaining a work/life balance.

A victim of remote working that has perhaps been overlooked is pumps. These systems that we rely on every day keep water pressure high and facilities such as toilets working properly, but with increased usage; these essential systems can run less efficiently and are at a higher risk of failure.

Find out more about the types of pumps that have been impacted by working from home and how building owners can ensure users always get a high level of performance from their pumps in our latest blog post.

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Golf Course Pumping Systems – Tips for a Successful Winter

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As winter starts to bite, golf courses across the UK will be making preparations for the challenges that the cold weather brings including frost, snow and stressed grass.

Clubs and groundsmen are generally well prepared for the challenges that winter brings, with many being able to continue serving golfers for the majority of the cold season.

However, pumping systems found on golf courses such as irrigation, boreholes, booster sets, multistage pumps and sewage pumps are often overlooked – with a lack of expertise available on site to complete vital maintenance and prevent potential failure when the cold hits.

In our latest blog post, we run through essential steps clubs and groundskeepers should be taking to ensure they can continue to operate throughout the winter months or reduce the risk of damage to pumps during winter closure.

engineer checking readings on a tablet

What to Expect From Your Booster Pump Maintenance Contract

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Booster pumps play a vital role in environments such as schools, blocks of flats and apartments, public buildings and offices, increasing water pressure to enable the transportation of water across several storeys.

When booster pumps fail, the result can be extremely disruptive for building users, with water pressure dropping and, in some cases, water supplies being cut off completely.

Unfortunately, many premises that rely on a booster pump go without regular qualified maintenance, leaving essential checks to on-site teams who may not have the skills, tools, or expertise to properly maintain pumps or notice when something is wrong before it’s too late.

Read on to find out how often a booster pump needs maintenance, what’s included in a professional booster pump service, signs that a service may be due, and a checklist to help you carry out routine checks yourself.

Recommended Booster Pump Service Frequency

If you’re responsible for the care and ongoing maintenance of a booster pump, you should aim to have it serviced by a professional pump engineer annually. Preventative maintenance of your pumps through a regular pump service plan offers a number of benefits including:

  • Reduced risk of unexpected breakdown.
  • Increased efficiency of the pump.
  • Decreased risk of injury from pump malfunction.
  • Higher building user satisfaction.
  • Reduced noise and vibration from the pump.
  • Rectification of small problems before they develop into larger (and more expensive) ones.
An image of an engineer programming a booster set

What’s Checked During a Booster Pump Service?

During a booster pump service with Mawdsleys Pump Services, a number of key components are inspected to assess their condition. Before the inspection begins, a full risk assessment and method statement is completed. The service itself covers four main areas:

Pump identification and condition

  • Pump information recorded, including serial number, kW, voltage, amps, and phase
  • Check for rust or other degradation on key components
  • Rotation of motors checked
  • Hours run recorded

Pressure and water system

  • Water tank ball valve checked
  • Inlet pipework and valves inspected
  • Outlet pipework and non-return valves/valves inspected
  • Pressure vessels checked
  • Tank pressure checked
  • Gauge and pressure sensor checked
  • Start and stop pressure tested
  • Speed control system checked

Electrical system

  • Single phase and three phase checked
  • Running amps measured
  • Earth and bonding checked
  • Earth trip tested
  • Control panel and panel indicator bulbs checked

Final checks

  • Pumps tested
  • System returned to automatic mode

Throughout the inspection, vital components such as bearings are replaced where needed. Following the visit, a full written report is issued highlighting any areas that require remedial work or may soon require attention.

Signs That Your Booster Pump Is In Need Of a Service

In addition to your regular maintenance contract, you should call in a professional pump engineer if you notice any of the following:

  • Excessive vibration from the pump.
  • Excessive noise being created by the pump. Read our blog to find out more about controlling noise in your booster pump system.
  • Low water pressure.
  • No water pressure.
  • Rust or degradation within any component of the pump.
  • Leaking from pipework or pump unit.
  • Increase in energy bills.
An image promoting our free booster pump inspection checklist

Booster Pump Maintenance Checklist: What to Check Yourself

Alongside your annual professional booster pump service, regular checks between visits help catch developing problems early. Before carrying out any pump maintenance or visual checks yourself, consult the pump manufacturer’s supply manual and make sure you have the right protective equipment. We recommend the following checks on a monthly basis:

  • Visual inspection of the shaft seal for any leakage — call a professional pump engineer if you notice any leakage
  • Visual inspection of the pump’s pressure and discharge gauges — any abnormal readings should be assessed by a professional pump engineer
  • Check the pump’s foundation to ensure the frame is secure — tighten any loose bolts, but if this keeps recurring it could be a sign of excessive vibration
  • Check vital components of the pump for any rust or other degradation

To help you keep on top of routine maintenance between professional services, we’ve created a free inspection checklist for responsible persons. Download your copy here.

Booster Pump Maintenance Contracts at Mawdsleys

At Mawdsleys Pump Services, we offer pump maintenance and servicing contracts for all types of pumps within any environment.

Our maintenance contract users benefit from priority response, regular preventative maintenance visits, 24/7 call out and more to ensure their pumps are running as efficiently as possible with minimal risk of breakdown.

For more information about our pump maintenance contracts or any of our other services, give one of our expert team a call today on 0117 954 8030.

Booster Pump Maintenance and Service FAQs

Costs depend on the size and complexity of your system, the number of pumps in the set, and whether you’re booking a one-off service or an ongoing maintenance contract. A maintenance contract is usually the most cost-effective option for buildings that depend on consistent water pressure, as it includes scheduled visits, priority response, and 24/7 call-out as standard. Call us on 0117 954 8030 for a tailored quote.

In-house monthly checks are visual — looking for leaks, abnormal gauge readings, loose fittings, or rust. A professional booster pump service goes much further, covering the pump’s electrical system, pressure system, and mechanical condition in detail, replacing worn components such as bearings, and issuing a written report. The two work together: monthly checks catch obvious issues early, while the annual service catches what an in-house team can’t.

Skipping a scheduled service increases the risk of unexpected breakdown, reduces the pump’s efficiency, and means small, inexpensive issues are more likely to develop into larger, more costly failures. It can also affect water pressure and reliability for building users in the meantime.

Both are available. A maintenance contract is generally recommended for buildings that rely on consistent water pressure, since it includes priority response and 24/7 call-out alongside scheduled visits. One-off services suit smaller systems or properties with lower demand. Speak to our team about which option suits your building.

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Back To School – Are Your Pumps Ready for the New Term?

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Pumping system maintenance for schoolsWith summer coming to an end, the new term is looming for schools and other educational establishments across the country.

In these environments, proper maintenance of pumps and associated equipment is essential, but stretched budgets, no maintenance plans and lack of knowledge can often result in schools dealing with unexpected breakdowns.

In our latest blog post, we’ll run through the risks of failing to maintain pumping equipment in schools, the pumps most commonly found in schools, checks you can carry out and how Mawdsleys can help ensure your pumps stay up and running all year round.