CLEARMASTERS
Septic tanks and cesspits in the villages
We empty septic tanks and cesspits for homes, farms and estates around Farnham with tankers from 2,000 to 4,000 gallons. We check the tank every visit and tell you if anything needs attention.
Learn moreFarnham is a Georgian market town on the River Wey, close to the Hampshire border. The town is on mains drainage, and our work there is mainly drains and grease traps. But the countryside to the south and east, around Tilford, Frensham, Churt, Elstead, Dockenfield and Seale, has a lot of homes, farms and estates on septic tanks, cesspits and treatment plants.
The ground is very mixed. South of the town, the sandy heaths around Frensham drain freely. East of it, along the foot of the Hog’s Back, there’s heavier clay, and the chalk of the ridge itself drains well but feeds drinking water supplies. A soakaway that works in Tilford might fail in Seale.
Our crews are in the Farnham area most days and we answer the phone 24 hours a day, 365 days a year.
Our Farnham drainage and waste services
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Septic Tank & Cesspit Emptying
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Treatment Plant Servicing
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Blocked Drains & CCTV Surveys
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Septic Tank Surveys
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Grease Traps & Commercial Waste
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Treatment Plant Installations
Learn moreCovering Farnham
& villages
& villages
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Farnham customers
Treatment plant servicing and repairs
Treatment plants are common in the villages around Farnham. Our engineers service them at least once a year, carry the most common parts and repair them when they fail.
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Drain clearance in town
Farnham’s older streets have drains that are well over a century old. We clear blockages with high-pressure jetting and survey the pipes with CCTV if problems keep coming back.
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Grease traps for restaurants and pubs
The town’s restaurants, cafés and pubs need their grease traps emptied regularly. We set up a schedule and leave a waste transfer note every time.
Learn moreLocal knowledge
Drainage around Farnham: what to know
Heath, clay and chalk within a few miles.
Sandy heaths
Around Frensham and Tilford, sandy soil drains freely, so soakaways usually work well.
Clay below the Hog’s Back
East of the town, heavier ground drains slowly. Drainage fields there can struggle in winter.
Surrey Hills
Much of the countryside south and east of Farnham is in the Surrey Hills National Landscape. New drainage may need careful planning.
Local to you
Areas we cover in and around Farnham
We cover Farnham and the villages around it.
Farnham · town and nearby
- Farnham
- Wrecclesham
- Rowledge
- Hale
- Weybourne
- The Bourne
Surrounding villages · where septic tanks and cesspits are common
- Tilford
- Frensham
- Churt
- Dockenfield
- Elstead
- Seale
- Puttenham
- Runfold
- Tongham
- Badshot Lea
- Millbridge
- Crondall
Not sure if we cover you?
If you’re in or around Farnham, we cover you. Call with your postcode and we’ll confirm.
Why Farnham customers use us
Experienced with village systems and town drains
Whether it’s a cesspit near Churt or a blocked drain in town, here’s what you get.
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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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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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We remember so you don’t have to
Regular customers get a reminder when their next empty or service is due.
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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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One call for everything
Tanks, treatment plants, pump stations, grease traps and drains, all handled by one team.
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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.
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
★★★★★Clearmasters Ltd did a great job of servicing and emptying our sewage treatment plant. The team turned up on time, were very polite, efficient and gave me lots of advice on maintenance. The office team are extremely helpful also. I'd thoroughly recommend them.
Checkatrade review Checkatrade · GU10
★★★★★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.
★★★★★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.
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 have and what’s happening. If you’re not sure what kind of system it is, we’ll help.
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Step 2
We come out and do the job
We send a tanker, a jetting van or a service engineer. It helps if:
- there’s room for a tanker within reach of the tank, and you tell us if the lane or drive is narrow
- lids and covers are uncovered and easy to find
- you let us know about any gates, codes or animals in the field
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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 Farnham property
Tell us what you need and we’ll come back with a price. If something’s overflowing, call us now.
- Free quotes for emptying, servicing and repairs
- Septic tanks, cesspits, treatment plants and drains
- Regular collections booked for you
Urgent?
03333 233566
Questions answered
Farnham septic tank and drainage FAQs
What homeowners and businesses around Farnham ask us most.
Why does my soakaway work but my friend’s in the next village doesn’t?
The ground around Farnham changes from free-draining sand to heavier clay over a few miles. A soakaway on sand usually copes; on clay it can flood.
How often should my septic tank be emptied?
For most households, about once a year. We’ll suggest a schedule after the first visit and remind you when it’s due.
Do you service treatment plants in Tilford and Frensham?
Yes. We service and repair treatment plants throughout the villages around Farnham.
Do I need planning permission for a new treatment plant?
Sometimes, particularly in the Surrey Hills. The system must also meet the Environment Agency’s rules. Check with Waverley Borough Council first.
Do you empty grease traps in Farnham?
Yes. We empty grease traps for restaurants, cafés and pubs on a regular schedule, with a waste transfer note each time.
Can you help in an emergency?
Yes. Our crews are in the area most days and we answer the phone 24 hours a day. 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.