Maintenance & Repairs
Pump Maintenance and Repair — Bristol & South West Specialists
Mawdsleys Pump Services provides pump maintenance and repair for domestic, commercial and industrial clients across Bristol, Bath, Cardiff, the South West of England and South Wales. With over 30 years of experience and a fleet of fully equipped service vans operating from our Bristol base, our engineers are on the road and available to attend site fast — including 24/7 emergency cover.
We carry out pump maintenance and repair on all types of pumping systems, from sewage pumps and booster sets to borehole pumps, submersible pumps and stormwater installations. Whether you need a one-off repair, a scheduled maintenance visit or an ongoing servicing contract, our in-house team handles it directly — no subcontracting.
Pump Equipment and Systems We Specialise In

Sewage Pumps
Sewage pump failure needs a fast response. In addition to our pump repair and refurbishment service, we provide planned sewage pump maintenance visits and emergency breakdown cover for all major models including TT Pumps, Lowara, Grundfos, Flygt, Pedrollo and DAB. We hold maintenance contracts with Bristol City Council and North Somerset Council.

Submersible Pumps
Preventive maintenance is essential for any operation that relies on a submersible pump. Our engineers carry out maintenance and repair on submersible pumps across all applications — sewage, stormwater, flood, basement and cellar — catching problems before they develop into costly emergency breakdowns.

Booster Pumps

Borehole Pumps
Giving the initial investment that comes with a borehole drilling and pump installation – there really is no excuse to let regular maintenance and repair slip through the net.
Catching problems before they develop ensures that minor problems do not lead to complete system failure; something that can be very costly for businesses that rely on these pumps.
What Does a Pump Maintenance Visit Include?
Our pump maintenance visits follow a structured checklist on every call, regardless of pump type. A standard visit covers:
- Visual inspection — pump body, chamber, pipework, fixings and cable condition
- Operational testing — running the pump through its start, run and stop cycle to verify correct function
- Float switch and level control checks — testing and adjusting start/stop levels, replacing worn floats
- Seal and valve inspection — checking mechanical seals, non-return valves and isolation valves for wear or leakage
- Motor insulation and current draw testing — identifying winding deterioration before it causes motor failure
- Electrical safety checks — control panel inspection, overload settings, alarm and telemetry testing
- Wet well or chamber cleaning — removing silt, rag and debris accumulation where applicable
- Written condition report — a full record of work carried out, findings and any recommendations for parts or follow-up work
For clients on a servicing contract, each report feeds into a cumulative asset history — useful for budgeting, compliance audits and identifying equipment approaching end of life before failure occurs.
Pump Maintenance and Servicing Contracts
A servicing contract with Mawdsleys is the most cost-effective way to keep your pumping equipment reliable and avoid unexpected breakdowns. We provide pump maintenance contracts for domestic, commercial, industrial and public sector clients across Bristol, Bath, Cardiff, the South West and South Wales.
We tailor every contract to the site — whether you have a single domestic sewage pump or a multi-site estate with critical infrastructure pumping equipment. Contract visits are typically scheduled every 6 or 12 months, with additional visits for high-usage or high-risk installations.
Maintenance and Servicing Contracting Benefits
Priority Response
Contract clients are placed ahead of non-contract call-outs when an emergency arises, minimising your wait time and downtime.
24/7 Call Out Response
Our engineers operate around the clock, 365 days a year — including bank holidays and the Christmas period — so breakdowns are never left unattended.
All Pump Types Serviced
Sewage, booster, borehole, submersible, stormwater, flood, basement and well pumps — our engineers are trained and equipped for all of them.
Preventative Maintenance Scheduling
We manage the schedule and send reminders when visits are due, so maintenance never slips through the net during busy periods.
Why Mawdsleys Pumps
Speed of Service
When your pump fails, you need action—not promises. That’s why we respond fast, and fix it faster.

24/7 Support
Your pump doesn’t care what time it is when it breaks down. Neither do we. We operate 365 days a year.
Stellar on Google
Don't take what we say for granted. Check our Google Reviews for confirmation of the quality we bring.

Precise Communication
Our specialists will give you the full picture and keep you in the loop every step of the way.

Testimonials
Yücel
Facility Manager – FMC
Wildfowl & Wetlands Trust
North Somerset Council
Local coverage
We provide pump services to the South West and South Wales:
Bristol, Cardiff, Newport, Bath, Cheltenham, Gloucester, Weston-super-Mare, Bridgewater, Thornton, Exeter, Salisbury, Southampton, Reading, Swindon, Slough, Oxford, Basingstoke, Newbury, Worcester, Hereford, Yeovil
Accreditations










Pump Repair FAQs
The price varies depending on:
- The location of the site
- Whether we can fix the problem on-site or we have to remove the pump
- The type of pump
Do not hesitate to call us if your pump fails, as we can provide you with guidance over the phone, too.
Call us immediately on 0117 954 8030. Our team can advise you over the phone before any engineer attends — in many cases we can help you safely manage the situation remotely while we arrange a visit. We operate 24/7, 365 days a year.
For most pump types, we recommend a maintenance visit every 6 to 12 months. The right frequency depends on the pump type, the application and how critical the pump is to your operation:
- Sewage pumps in commercial or multi-occupancy premises: every 6 months as a minimum
- Stormwater and flood pumps: every 6 to 12 months, ideally with a pre-winter check before the peak rainfall season
- Booster pumps in occupied buildings: annually, unless the manufacturer specifies more frequent servicing
- Borehole pumps: annually, with pull-and-inspect every 3–5 years depending on water quality
- Domestic submersible pumps: annually, or as recommended following each service report
If your pump has never been serviced or you’re unsure of the last service date, contact us and we’ll carry out an initial assessment.
If a repair costs more than 50% to 75% of a new unit, we generally recommend replacement. You must also consider efficiency—a new 2026 model might be 20% cheaper to run than your 15-year-old repaired equipment.
The most common warning signs of pump failure (depending on the pump pipe) are:
- Pump not turning on
- Pump not turning off
- Pump being noisy
- Toilet backing up
- Low water pressure
- Pump leaking
- High-level alarm sounding
- Bad smell from pump/sump
- High energy costs
Yes. Mawdsleys is based in Bristol and our engineers cover the full South West and South Wales region, including Bristol, Bath, Cardiff, Newport, Gloucester, Cheltenham, Exeter, Swindon, Southampton and many surrounding areas. If you’re searching for pump maintenance near you, call us on 0117 954 8030 to confirm coverage for your specific location — we’ll let you know immediately whether we can attend and give you an honest estimate of response time.