CLEARMASTERS
Blocked drains
We clear blocked drains at homes and businesses with high-pressure jetting. On large plots with long drains, we’ll find exactly where the blockage is and tell you what caused it.
Learn moreEsher and its neighbours, Claygate, Hinchley Wood, Thames Ditton and the Moleseys, are mainly residential, with many large homes on big plots and a growing number with basements. It’s all on mains drainage, so our work here is about keeping drains clear, surveying them, and looking after the pumps that many newer and extended homes rely on.
A house with a basement below the level of the sewer needs a pump to lift waste and water out. When that pump fails, the basement floods. We service and repair these pump stations, as well as the larger ones on new developments, and can respond 24/7 if one stops working.
The ground here is London Clay, and the low land near the Mole, the Ember and the Thames can flood after heavy rain. Our crews are in the area most days and we answer the phone 24 hours a day.
Our Esher drainage services
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Blocked Drains & CCTV Surveys
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Pump Station Servicing
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Septic Tank Surveys
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Flood & Groundwater Removal
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Treatment Plant & Pump Repairs
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Gullies & Interceptors
Learn moreEsher &
Elmbridge
Elmbridge
Basement pump
servicing
servicing
Homes &
businesses
businesses
Written
reports
reports
24/7
call-outs
call-outs
What we do for Esher customers
Basement and domestic pump stations
Basements below the sewer level rely on a pump to get waste and water out. We service these pump stations, test the pumps, floats and alarms, clean the chamber, and come out day or night if one fails before your basement floods.
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CCTV drain surveys
A CCTV survey shows the condition of your drains before a purchase, after a blockage, or before building work. It’s especially worth having before a basement or extension is built over an old drain.
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Flood water removal
When heavy rain or a failed pump floods a basement, cellar or chamber, our tankers can pump it out and take it away. Afterwards we can check the drains and the pump to find out what went wrong.
Learn moreLocal knowledge
Drainage around Esher: what to know
Big homes, basements and London Clay.
Basements need pumps
A basement below the sewer depends on a pump. Without regular servicing, a worn pump or stuck float can lead to flooding.
London Clay
The clay shrinks and swells with the seasons, which can crack older drains. Repeated blockages may mean damage.
Rivers nearby
Low land near the Mole, Ember and Thames can flood after heavy rain. Working pumps and clear drains help.
Local to you
Areas we cover in and around Esher
We cover Esher and the towns and villages of Elmbridge around it.
Esher · and neighbouring areas
- Esher
- Claygate
- Hinchley Wood
- Weston Green
- Thames Ditton
- Long Ditton
Surrounding areas · homes and businesses we cover
- East Molesey
- West Molesey
- Hersham
- Oxshott
- Cobham
- Walton-on-Thames
- Tolworth
- Surbiton
- Chessington
- Stoke d’Abernon
- Ditton Hill
- Fairmile
Not sure if we cover you?
If you’re in or around Esher, we cover you. Call with your postcode and we’ll confirm.
Nearby areas
Why Esher customers use us
Looking after drains and pumps for larger homes
Whether it’s a basement pump in Claygate or a blocked drain in Molesey, here’s what you can expect.
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Day and night, all year
Emergency call-outs 24 hours a day, 365 days a year, with a real person answering the phone.
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Trained engineers
Our engineers and most of our tanker drivers hold current confined space entry certificates, and the engineers carry the most common parts.
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Paperwork done properly
A waste transfer note with every collection, and a written report after surveys and services.
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The right kit for the job
Tankers from 2,000 to 4,000 gallons, jet/vac combination units, CCTV survey kit and confined space teams for pump station wet wells.
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34 years in drainage
We’ve been emptying tanks and servicing systems since long before most of the kit on the market existed.
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One call for everything
Tanks, treatment plants, pump stations, grease traps and drains, all handled by one team.
What our customers say
9.84/10
Checkatrade
From 134 reviews · Read them
4.9/5
From 63 reviews · Read them
Scores as of September 2026
★★★★★Great job again from Clearmasters, Matt was very responsive and fitted us in on short notice.
Checkatrade review Checkatrade · KT22
★★★★★Clearmasters have been emptying and servicing our treatment plant for the last 7 years and their service and quality of work is of a high standard. I would highly recommend them.
★★★★★Efficient, courteous, customer-facing. Would not hesitate to recommend to others.
How it works
What happens when you book
The same simple process for every job.
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Step 1
Tell us what you’ve got
Call us or book online and tell us what’s happening. If it’s a basement pump, tell us the make if you know it and whether the alarm is sounding.
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Step 2
We come out and do the job
We send the right van, tanker or engineer. It helps if:
- you tell us where the inspection chambers are, as long private drains are common
- gates are open or we have the code, and someone can show us the plant room or pump chamber
- cars are moved away from covers on the drive
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Step 3
Paperwork and the next visit
You get a waste transfer note for anything we take away, and a written report after a survey or service. If it’s a regular job, we’ll remind you when the next one is due.
Free, no-obligation quote
Get a quote for your Esher property
Tell us what you need and we’ll come back with a price. If your basement is flooding or an alarm is sounding, call us now.
- Free quotes for drains, pumps and surveys
- Basement pump servicing and repairs
- 24/7 response if a pump fails
Urgent?
03333 233566
Questions answered
Esher drainage and pump FAQs
What homeowners around Esher ask us most.
How often should a basement pump be serviced?
At least once a year, and more often if it serves a busy household or takes groundwater. Servicing catches worn pumps and sticking floats before they cause a flood.
My basement pump alarm is sounding. What should I do?
Stop using water in the basement and anything that drains to the pump, and call 03333 233566. If the pump has failed, we can empty the chamber to stop it overflowing while we fix it.
Should I survey the drains before building an extension or basement?
Yes. Building over or near an old drain without knowing its condition can lead to expensive problems. A survey shows where it runs and what state it’s in.
Why do the drains block after a dry summer?
London Clay shrinks as it dries, which can crack or shift old clay pipes. A CCTV survey will show any damage.
Can you pump out a flooded basement?
Yes. Our tankers can remove the water and take it away, then we’ll check the pump and drains to find the cause.
Are you available out of hours?
Yes. We answer the phone 24 hours a day, 365 days a year. Call 03333 233566.
Got a different question? Call 03333 233566 or send us a message.
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.