CLEARMASTERS
Basement and riverside pumps
Basements, plant rooms and riverside homes below the sewer depend on pumps. We service them, test the floats and alarms, and respond 24/7 when one fails.
Learn moreWalton-on-Thames is in Elmbridge, Surrey, just over the boundary from south-west London, with a busy town centre, riverside homes along the Thames, and large houses on private estates such as Burwood Park. It’s on mains drainage, so our work here is drains, pumps and water.
Riverside homes and low ground near the Thames and the Mole can be affected by high river levels, and many properties rely on pumps. Large homes have long private drains, basements and plant rooms. In the town centre, restaurants and cafés need grease traps emptied.
Our crews work in north Surrey and south-west London most days and we answer the phone 24 hours a day, 365 days a year.
Our Walton-on-Thames drainage services
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Pump Station Servicing
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Blocked Drains & CCTV Surveys
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Septic Tank Surveys
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Flood & Groundwater Removal
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Grease Traps & Commercial Waste
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Treatment Plant & Pump Repairs
Learn moreCovering
Walton-on-Thames
Walton-on-Thames
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
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fleet
What we do for Walton-on-Thames customers
Drains on large properties
Long private drains and mature gardens make blockages harder to find. We locate them with a camera, clear them and tell you what caused them.
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CCTV surveys and drain tracing
We trace and survey drains on large plots, find buried chambers and give you a written report.
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Flood water removal
When the river is high and water gets into basements, gardens or chambers, our tankers pump it out and take it away.
Learn moreLocal knowledge
Drainage around Walton-on-Thames: what to know
Riverside homes and private estates.
Private estates
On private estates, drains and any shared pump station may be the residents’ responsibility.
The river
Low ground near the Thames and the Mole can flood in very wet winters.
Pumps below ground
Basements and plant rooms below the sewer need pumps that are serviced and alarmed.
Local to you
Areas we cover in and around Walton-on-Thames
We cover Walton-on-Thames and the neighbouring towns of Elmbridge and south-west London.
Walton-on-Thames · and neighbouring areas
- Walton-on-Thames
- Hersham
- Burwood Park
- Oatlands
- Ashley Park
- Walton Riverside
Surrounding areas · homes and businesses we cover
- Weybridge
- Molesey
- Esher
- Shepperton
- Sunbury
- Whiteley Village
- Cobham
- Thames Ditton
- Hampton
- Addlestone
- Claygate
- Byfleet
Not sure if we cover you?
If you’re in or around Walton-on-Thames, we cover you. Call with your postcode and we’ll confirm.
Nearby areas
Why Walton-on-Thames customers use us
Careful work on riverside and larger homes
Whether it’s a riverside pump or a long drain on a private estate, here’s what you can expect.
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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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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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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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Paperwork done properly
A waste transfer note with every collection, and a written report after surveys and services.
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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
★★★★★I have used Clearmasters now for 4 years and the service has been excellent. Very punctual on the day and their planning team have always been very helpful in finding convenient dates to service and maintain our pumps and tanks. I recommend.
Adam G. Google review
★★★★★Very professional operation. Super clean tanker. Responded quickly to quote and booking requests. Arrived on time. Kept us notified throughout. Very pleasant and helpful guy operating the equipment. Gave sound advice with ongoing maintenance tips. Will definitely be saving Clearmasters' contact details to use them again.
★★★★★Clearmasters have emptied our Septic Tank for many years. It is not an easy placed tank to get to but the chaps manage perfectly. I find them very efficient, friendly and polite. Thank you Valerie Wise
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. Let us know about gate codes and estate rules.
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Step 2
We come out and do the job
We send the right engineer, van or tanker. It helps if:
- you tell us if there’s standing water on the drive or around the chambers
- pump chambers, control panels and manholes are clear and easy to reach
- we know about tides or river levels if you’re right on the bank
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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 Walton-on-Thames property
Tell us what you need and we’ll come back with a price. If you’re flooding, call us now.
- Free quotes for pumps, drains and surveys
- Basement and riverside pump servicing
- Flood water removal
Urgent?
03333 233566
Questions answered
Walton-on-Thames drainage FAQs
What homeowners and businesses in Walton-on-Thames ask us most.
Is Walton-on-Thames in London?
No, it’s in Elmbridge, Surrey, right on the edge of south-west London. We cover it from both sides.
Who looks after the drains on a private estate?
Often the residents through a management company. The water company may only be responsible from where the estate drains join the public sewer.
How often should a basement pump be serviced?
At least once a year, ideally before winter.
Can you trace drains on a large property?
Yes. We follow long private drains with a camera, find buried chambers and show you the route.
Can you pump out a flooded garden by the river?
Yes. Our tankers can remove flood water and take it away.
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.