Stormwater Pump Service, Repair & Maintenance

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Mawdsleys Pump Services provides stormwater pump service, repair and maintenance for domestic, commercial, industrial and highways clients across the South West of England and South Wales.

We hold reactive and planned maintenance contracts with the Highways Agency and Bristol City Council, and have over 30 years of experience working with the stormwater and flood pumping equipment these clients depend on. When a stormwater pump fails, flooding can follow within hours — our engineers are available 24/7, 365 days a year to respond.

Whether you need an emergency call-out, a one-off service visit, or an ongoing stormwater pump servicing contract, call us on 0117 954 8030 and we’ll advise you over the phone or attend site as soon as possible.

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

We at WWT Slimbridge in Gloucestershire have been using Mawdsleys for several years. We have found them very obliging and very quick in responding to any faults and breakdowns." At WWT we rely on pumping stations for pumping sewage to various pumping stations which eventually are pumped to a reed bed. It is essential that we have a good response time. The costs are competitive and no one has ever beaten them on our contract pricing.They are always courteous and nothing is too much trouble for them.

Wildfowl & Wetlands Trust

What Does a Stormwater Pump Service Include?

A stormwater pump service visit from Mawdsleys covers every component that affects the reliability of your system. Our engineers work to a structured checklist on each visit:

Pump and motor inspection — checking for wear, overheating marks, corrosion and mechanical damage
Float switch and level control testing — verifying correct start and stop levels; adjusting or replacing as needed
Non-return valve check — inspecting for debris blockage, seal condition and correct operation
Inlet screen and wet well cleaning — removing silt, rag, leaves and debris that accumulate between service visits and restrict pump performance
Control panel inspection — testing auto-start, alarm functions and any telemetry or remote monitoring connections
Motor insulation and current draw testing — identifying winding deterioration before it results in motor failure
Pipework and discharge check — confirming pipework integrity and that the discharge path is clear and unobstructed
Written service report — a full record of findings, work carried out, and any recommendations or parts required

Following each stormwater pump service, you receive a written condition report. For clients on a servicing contract, this feeds into an asset history that supports planned budgeting and helps identify pumps approaching end of life before they fail.

Planned Stormwater Pump Servicing Contracts

For sites where a stormwater pump is protecting against flooding — highways drainage, industrial sumps, car parks, basements, utilities infrastructure — a planned servicing contract is the most cost-effective way to maintain reliability and manage risk.

Our stormwater pump servicing contracts include:

Agreed number of service visits per year (typically 6-monthly or annual, adjusted to site risk)
Priority emergency response ahead of non-contract call-outs
Discounted rates on parts and labour arising from service visits
Full asset history and annual condition reporting
Direct contact with a named engineer familiar with your site

We currently hold stormwater pump servicing contracts with the Highways Agency, Bristol City Council, North Somerset Council and the Wildfowl & Wetlands Trust, as well as private sector clients across the South West and South Wales.

Stormwater & Flood Pump Installation

Mawdsleys have been installing stormwater and flood pumps throughout Bristol and the South West for over 10 years. From large-scale stormwater pump installations for the Highways Agency to domestic flood protection solutions, our engineers can survey your site, specify the correct pump for your application, and manage the installation from initial assessment through to commissioning.

If you are replacing an existing pump or installing a new system, we'll recommend the right solution and ensure you understand how your equipment operates before we leave site.

How do I choose the correct stormwater pump?

Our trained surveyor will attend site, assess the catchment area, inflow rates and discharge requirements, and specify the pump best suited to your individual needs. Using the wrong pump — undersized for peak flow or oversized for normal conditions — is a common cause of both flooding and premature pump failure.

Why do I need to service my stormwater pump?

Without a regular stormwater pump service, the first indication that your pump has failed is usually flooding. By then, you're looking at the cost of the pump repair plus the cost of emergency attendance, potential tankering, and any damage caused by the flood event itself. A planned service visit typically costs a fraction of an emergency call-out and the consequences of flooding it prevents.

What does a stormwater pump service include?

A full service visit covers pump and motor inspection, float switch testing, non-return valve check, inlet screen and wet well cleaning, control panel and alarm testing, motor insulation testing and a written condition report.

How often should I have my stormwater pump serviced?

Most of our contracts are on a 6-monthly or annual basis. The right frequency depends on the site — a stormwater pump protecting a critical infrastructure asset or a high-debris environment (such as a highway drain) warrants more frequent visits than a simple domestic sump. Our engineer will assess your system on the first visit and recommend a service schedule accordingly.

How much does a stormwater pump repair cost?

Repair costs vary depending on the location of the site, whether the pump can be repaired in situ or needs to be removed and overhauled in our Bristol workshop, and the type and age of the pump. Call us on 0117 954 8030 for an honest assessment — we're happy to advise over the phone before any engineer visits are booked.

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