CLEARMASTERS
repair engineers
call-outs
after every visit
and tankers
in drainage
Is your pump station alarm going off?
Keep water use to a minimum, don’t try to run the pumps manually or change the control panel settings, and call us. We’re available day and night, 365 days a year.
See it happen
What happens when a pump fails?
Choose a scenario to see how a twin pump station copes when a pump fails, and what happens when both do. It’s why we take alarms seriously.
- 1InletWastewater from the property flows into the chamber.
- 2Duty and standby pumpsTwo pumps take turns, so they share the work and one is always ready if the other fails.
- 3Stop floatWhen the level drops below it, the running pump switches off.
- 4Start floatWhen the water lifts it, the next pump in turn switches on.
- 5Standby floatIf the level keeps rising, it brings in the second pump to help.
- 6High-level alarm floatThe last line of defence. It sets off the alarm beacon if the level gets this high.
- 7Control panelSwitches the pumps, swaps them over after every run and shows which one is working.
- 8Rising mainThe pipe the pumps push the waste through, on its way to the sewer.
Common faults
What we repair
These are the faults we see most often, and what usually causes them.
| Fault | Usual cause |
|---|---|
| Pump failed or seized | Rags or wipes wrapped around the impeller, wear, or overheating. |
| Alarm going off | A failed pump, a stuck or fouled float, a blocked rising main or a power problem. |
| Pump running constantly | A stuck float, a failed non-return valve letting waste run back, or a worn pump. |
| Pump not starting | A float fault, a tripped breaker, a failed relay or a burnt-out motor. |
| Waste running back into the chamber | A stuck or failed non-return valve. |
| Control panel faults | Tripped breakers, damaged relays, water in the panel or a failed board. |
On the day
What happens on a repair call-out
We assess the problem
We find out whether it’s mechanical, electrical or a blockage, and make sure the chamber isn’t going to overflow.
We make it safe
Power is isolated before we enter the chamber or handle pumps and controls.
We repair or replace
We fix the fault, replacing pumps, floats, valves or panel parts where needed.
We test and explain
We test the station, check the float levels and tell you what caused the problem and how to stop it happening again.
Why Clearmasters
Why call Clearmasters?
When a pump station fails, you want someone who answers the phone and turns up. We’re on call around the clock, and we can bring a tanker to keep the level down while we repair it.
Many breakdowns are caused by rags and fat in the chamber, so regular pump station emptying and servicing help prevent the next one. We also repair and replace control panels.
We do this work across Surrey, West Sussex, East Sussex, Kent, Hampshire and London, with tankers and engineers in each area most days.
Ask us a questionAlways on hand
Planned servicing at a time that suits you, and 24/7 call-outs when something goes wrong.
Straight answers
We explain what we found in plain English, and give you honest advice on what needs doing now and what can wait.
Trained engineers
Our engineers hold current confined space entry certificates and work on treatment plants, pump stations and drainage every day.
A tanker if you need one
We can keep the chamber from overflowing while the repair is done.
What our customers say
Checkatrade
From 134 reviews · Read them
From 63 reviews · Read them
Scores as of September 2026
Questions answered
Pump station repair FAQs
Do you offer emergency pump station repairs?
Yes. We’re available 24/7, 365 days a year. Call 03333 233577 out of hours.
Why do pumps fail?
The most common cause is rags and wipes wrapping around the impeller. Wear, float faults, electrical problems and sludge build-up are the others. Regular servicing and emptying prevent most of them.
Do you repair or replace pumps?
Both. If a repair is safe and good value, we’ll repair it. If not, we’ll replace it with the right pump for your station.
Can you repair control panels and alarms?
Yes. We find and fix control panel faults, alarms, floats and level sensors, and can replace old panels.
What can I do while I wait for you?
Use as little water as possible: no baths, showers, washing machines or dishwashers. Don’t lift the chamber cover or try to run the pumps yourself.
How do I stop it happening again?
Only flush the three P’s: pee, poo and paper. And have the pump station serviced and emptied regularly.
Got a different question? Call 03333 233566 or send us a message.
Related services
Fully accredited & compliant
We're independently vetted and certified so you can trust who you're letting onto your site.
SafeContractor
Health & safety pre-qualification accreditation, verifying our processes meet recognised safety standards.
RISQS
Railway Industry Supplier Qualification Scheme — approved to work safely within the rail industry supply chain.
Achilles UVDB
Utilities Vetting Database membership, confirming we meet the utilities sector's supply chain standards.
Trading Standards Approved
Vetted and approved under the local authority's trusted trader scheme for honesty and fair dealing.
NADC Member
Members of the National Association of Drainage Contractors, the UK trade body for the drainage industry.
Registered Waste Carrier
Registered with the Environment Agency, so your waste is handled and disposed of fully within the law.