CLEARMASTERS
Blocked and damaged drains
Clay drains in Epsom and Ewell’s older streets crack and shift as the ground moves. We clear blockages with high-pressure jetting and survey the pipe so you know whether it needs repairing.
Learn moreEpsom is famous for the Derby, but most of our work here is much closer to home: clearing and surveying drains in the town’s Victorian streets and inter-war suburbs, emptying grease traps for town-centre restaurants, and servicing pump stations on the large estates built on former hospital land around the town.
North of the town centre, Epsom and Ewell sit on London Clay, which shrinks in dry summers and swells in wet winters. That movement cracks and shifts older drains. To the south, the chalk of Epsom Downs drains freely, and the racing stables and scattered homes on the Downs sometimes have their own drainage.
Our crews are in the Epsom area most days and we answer the phone 24 hours a day, 365 days a year.
Our Epsom drainage services
View all services
Blocked Drains & CCTV Surveys
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Grease Traps & Commercial Waste
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Pump Station Servicing
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Septic Tank Surveys
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Septic Tank & Cesspit Emptying
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Gullies & Interceptors
Learn moreCovering Epsom
& villages
& villages
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Epsom customers
Grease traps for restaurants and takeaways
Epsom’s town centre is full of restaurants, bars and takeaways, and every one needs its grease trap emptied before fat gets into the drains. We set up a schedule and leave a waste transfer note each time.
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Pump stations on larger estates
Some of the developments around Epsom depend on pump stations looked after by management companies. We service them, test the pumps and alarms, and come out 24/7 if one fails.
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Stables and homes on the Downs
Racing yards, stables and homes on and around Epsom Downs sometimes have septic tanks or cesspits. We empty them and check their condition every visit.
Learn moreLocal knowledge
Drainage around Epsom: what to know
Clay in the town, chalk on the Downs.
London Clay
The clay shrinks in dry summers and swells in wet winters, which can crack or shift old drains. Blockages after a dry spell are often a sign.
Estates on old hospital sites
Several large estates were built on former hospital land. Check whether your drains and pump station are adopted or privately managed.
Chalk downs
On the Downs, the chalk drains well but feeds drinking water supplies, so tanks must work properly.
Local to you
Areas we cover in and around Epsom
We cover Epsom, Ewell and the surrounding area.
Epsom & Ewell · and neighbourhoods
- Epsom
- Ewell
- Stoneleigh
- West Ewell
- Ewell Court
- Horton
- Woodcote
- Langley Vale
Surrounding areas · homes and businesses we cover
- Epsom Downs
- Ashtead
- Banstead
- Tattenham Corner
- Worcester Park
- Cheam
- Chessington
- Headley
- Walton on the Hill
- Tadworth
- Leatherhead
- Nork
Not sure if we cover you?
If you’re in Epsom or Ewell, we cover you. Call with your postcode and we’ll confirm.
Nearby areas
Why Epsom customers use us
For homes, restaurants and estates
Whether it’s a cracked drain in Ewell or a grease trap in the High Street, 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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One call for everything
Tanks, treatment plants, pump stations, grease traps and drains, all handled by one team.
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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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Accredited for commercial sites
SafeContractor, Achilles UVDB and RISQS approved, so we can get onto managed sites and meet your contractor checks.
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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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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.
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 service from the initial call to the guys that come out. And we’re at the house within 3-4 hours. That’s why we’ve always used them
Josh F. Google review
★★★★★We use Clearmasters regularly for our cesspool emptying and can't fault them at all. Always friendly and professional, both on the phone and the drivers. Online credit card payment which makes life easy. Highly recommend.
★★★★★Turned up on time, cleared the blockage with little fuss and the lads who turned up were professional throughout
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 you need. Businesses: let us know the best time to attend.
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Step 2
We come out and do the job
We send the right van or tanker. It helps if:
- manhole covers are clear of cars, bins and planters
- there’s somewhere nearby for our van or tanker to park
- you tell us about shared drains or neighbours who are affected
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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 Epsom property
Tell us what you need and we’ll come back with a price. If something’s overflowing, call us now.
- Free quotes for one-off jobs and contracts
- Drains, grease traps and pump stations
- Written reports after every survey
Urgent?
03333 233566
Questions answered
Epsom drainage FAQs
What homeowners and businesses in Epsom ask us most.
Why did my drain start blocking after a dry summer?
On London Clay, the ground shrinks as it dries and swells when it rains again. That can crack or shift old clay pipes. A CCTV survey will show whether that’s happened.
How often should a restaurant grease trap be emptied?
It depends on the size of the trap and how busy you are. We’ll suggest a schedule and adjust it as we see how quickly it fills.
Do you service pump stations on Epsom’s estates?
Yes. We service pump stations for management companies and respond 24/7 if one fails.
Do you empty septic tanks at stables on the Downs?
Yes. We empty septic tanks and cesspits for stables, yards and homes on and around Epsom Downs.
Can a survey help with an insurance claim?
Yes. A CCTV survey report with photos shows the condition of the drain and the location of any damage, which insurers often ask for.
Can you come out at night?
Yes. We answer the phone 24 hours a day. Call 03333 233566 and we’ll tell you when we can be there.
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.