South West & South Wales specialists with 30+ years of hands-on experience

Sewage Pump Repair, Maintenance & Servicing

When a sewage pump fails, the consequences are immediate and unpleasant. Mawdsleys Pump Services provides fast, reliable sewage pump repair, planned maintenance and full servicing contracts —
keeping your system running and your site compliant.

We work with domestic, commercial and industrial clients across the South West and South Wales, supplying and supporting leading brands including Lowara, Flygt, Grundfos, TT Pumps, DAB and Pedrollo.

And if a breakdown happens, we work 24/7, 365 days a year. Call 0117 954 8030

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. 

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Precise Communication

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

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Sewage Pump Repair

A failed sewage pump puts your whole site at risk. Our engineers carry out sewage pump repairs on-site wherever possible, with a fully equipped workshop in Bristol for pump refurbishment and overhaul when strip-down is required.

We repair all major makes and models, including submersible sewage pumps, macerator pumps and pumping station assemblies. Common faults we fix include:

  • Level control float switches stuck or failed
  • Blockages causing electrical trips
  • Failed non-return valves
  • Pump failing to start or not shutting off
  • Seal failure and chamber lid deterioration causing odour

If we can't fix it on-site, we'll arrange a like-for-like swap to keep your system operational while the repair is completed in our workshop.

Sewage Pump Maintenance

Planned sewage pump maintenance is the most cost-effective way to avoid emergency call-outs. Our in-house engineers carry out maintenance visits on a schedule that suits your site — monthly, quarterly, six-monthly or annual — using the latest diagnostic tools to catch problems before they cause a breakdown.

A typical maintenance visit includes:

  • Visual inspection of the pump, pipework and chamber
  • Float switch and level control testing
  • Non-return valve check
  • Motor insulation and current draw testing
  • Wet well cleaning and de-ragging where required
  • Written service report with condition status

We serve sites across Bristol, Cardiff, Bath, Gloucester, Exeter, Swindon, Southampton and the wider South West and South Wales region.

An image of an engineer fixing a control panel

Sewage Pump Servicing Contracts

For sites where sewage pumps are business-critical, a planned servicing contract gives you complete peace of mind. Our asset management platform tracks the condition of every pump on your site and flags issues before they escalate.

What’s included in a Mawdsleys servicing contract:

  • Agreed number of service visits per year
  • Priority response times for breakdowns
  • Discounted call-out rates
  • Annual compliance reporting
  • Direct line to your dedicated engineer

We currently hold servicing contracts with Bristol City Council, North Somerset Council, the Wildfowl & Wetlands Trust and many private sector clients. Contract pricing is always transparent — no hidden charges.

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

What Our Clients Say About Our Sewage Pump Servicing

Mawdsleys have serviced our pumps in a number of our Public Toilets over many years. They have always carried out their work professionally and to a high standard. In situations where we have had to call them out in an emergency they have always reacted quickly and kept us well informed of the situation.

Bristol City Council

Mawdsleys have been the provider of maintenance and inspection works for North Somerset's mechanical pump stock over the last four years. All pricing has been consistently transparent and the service given by all staff from Paul in the office to the chaps in the man holes has been exemplary. I would highly recommend Mawdsleys to any company or authority who are considering their services.

North Somerset Council

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

Not sure if you need a repair or a service?

8 Common Problems with

Sewage Pumps and How to Fix Them

Contact Our Expert Team

If you need a professional service for your submersible waste pump, call us now on 0117 954 8030, operating 7 days a week, we also offer 24-hour emergency call out service in the event of a breakdown.

Sewage Pump Case Studies

Sewage Pump Repair FAQs

The difference is in their functions. They both deal with dirty water, but the sewage pump moves sewage from a property to a septic tank or municipal sewer, whereas the septic pump grinds waste into a slurry

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 sewage pump fails, as we can provide you with guidance over the phone, too.

Contact us immediately! We can give you advice on what to do even before we come to inspect.

This is a safety feature telling you that the pump hasn’t is not functioning properly, and it can be a significant pump problem. Silence the alarm, stop using water immediately and get in touch with Mawdsleys Pump Services.

Even if the packaging says “flushable,” these wipes do not break down fast enough for a sewage pump and can cause serious pump problems. 

A strong, persistent foul odor usually points to a failed vent pipe or a perished seal on the chamber lid.


For most commercial and municipal sites, we recommend a minimum of one service visit per year. High-usage or critical sites benefit from quarterly or six-monthly sewage pump servicing to maintain reliability and compliance.

A full maintenance visit includes inspection of the pump, motor and chamber, float switch testing, non-return valve checks, wet well cleaning and a written condition report. Preventive maintenance significantly reduces the chance of an emergency breakdown.