CLEARMASTERS
Blocked drains and CCTV surveys
We clear blocked drains at homes and businesses with high-pressure jetting, and survey them with CCTV when the problem keeps coming back. On older estates, roots and cracked clay pipes are common culprits.
Learn moreWaterlooville and its neighbours, Cowplain, Purbrook and Horndean, are mainly suburban, with estates built over the last 70 years and big new developments to the west of the town. Most homes are on mains drainage, and much of our work is clearing blocked drains, surveying pipes and servicing pump stations on newer estates.
Head north or west and the countryside opens up. Villages like Denmead, Hambledon, Catherington and Lovedean, and the farms around them, often have septic tanks, cesspits and treatment plants. The chalk of the downs is close, and further south the ground is heavier clay, so drainage fields behave very differently from one village to the next.
Our crews are in Hampshire most days and we answer the phone 24 hours a day, 365 days a year.
Our Waterlooville drainage and waste services
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Blocked Drains & CCTV Surveys
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Pump Station Servicing
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Septic Tank & Cesspit Emptying
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Treatment Plant Servicing
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Septic Tank Surveys
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Grease Traps & Commercial Waste
Learn moreCovering Waterlooville
& villages
& villages
24/7
call-outs
call-outs
Homes &
businesses
businesses
Waste transfer
notes
notes
Own tanker
fleet
fleet
What we do for Waterlooville customers
Pump stations on new developments
New estates west of Waterlooville and elsewhere often rely on private pump stations. We service them for management companies, test the pumps, floats and alarms, and come out 24/7 when one fails.
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Septic tanks and cesspits in the villages
In Denmead, Hambledon, Catherington and the farms around them, we empty septic tanks and cesspits and check them while we’re there. We can book regular collections so you don’t have to remember.
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Treatment plant servicing
Treatment plants need servicing at least once a year to keep treating water properly. Our engineers service the common makes, carry common parts and leave a written report.
Learn moreLocal knowledge
Drainage around Waterlooville: what to know
Suburbs, new estates and downland villages, all within a few miles.
New developments
If you’ve moved into a new home west of the town, check whether your drains and pump station have been adopted, or are looked after by a management company.
Clay and chalk
Villages towards the downs are on chalk that drains well; further south, heavier clay drains slowly and drainage fields can struggle.
Older estates
Drains on estates from the 1950s to 1970s are now showing their age. Roots and cracked joints are common causes of blockages.
Local to you
Areas we cover in and around Waterlooville
We cover Waterlooville and the towns and villages around it.
Waterlooville · town and nearby
- Waterlooville
- Cowplain
- Purbrook
- Widley
- Wecock Farm
- Horndean
Surrounding villages · where private drainage is common
- Denmead
- Hambledon
- Catherington
- Lovedean
- Clanfield
- Blendworth
- Chalton
- Southwick
- Worlds End
- Anmore
- Rowland’s Castle
- Soberton
Not sure if we cover you?
If you’re in or around Waterlooville, call with your postcode and we’ll confirm.
Nearby areas
Why Waterlooville customers use us
One team for town and village
Whether it’s a blocked drain in Cowplain or a cesspit near Hambledon, here’s what you can expect.
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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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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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From estates to farms
We work on everything from new-build pump stations west of the town to century-old cesspits in Hambledon.
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Reminders for villagers
Once we know how fast your tank fills, we’ll tell you when the next empty is due.
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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
★★★★★I have used Clearmasters for years. They are always on time, polite and reliable whether your need them to empty your septic tank or undertake maintenance work. I wouldn’t use anyone else. Local and the best.
John E. Google review
★★★★★Work carried out professionally as usual, the only company I'd recommend.
★★★★★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
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. If you’re not sure what kind of system you have, describe what you can see and we’ll help.
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Step 2
We come out and do the job
We send a jetting van, a tanker or a service engineer. It helps if:
- there’s room to park a tanker close to the tank, trap or manhole
- lids, covers and hatches are clear and easy to find
- you tell us about narrow access, gates or site rules before we arrive
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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 Waterlooville 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 regular work
- Drains, pump stations, septic tanks and treatment plants
- Regular collections booked for you
Urgent?
03333 233566
Questions answered
Waterlooville drainage and septic tank FAQs
What homeowners and management companies around Waterlooville ask us most.
Who is responsible for the pump station on my new estate?
If it hasn’t been adopted by the water company, usually the management company. Check your purchase paperwork or ask your managing agent.
Do you empty septic tanks in Denmead and Hambledon?
Yes. Many homes and farms in the villages are off the mains, and we empty septic tanks and cesspits and service treatment plants there.
Why does my neighbour’s soakaway work when mine doesn’t?
Around Waterlooville the chalk of the downs gives way to clay within a short distance. A soakaway on chalk can drain freely while one on clay half a mile away floods every winter.
My drain keeps blocking. What’s the cause?
On older estates, it’s often tree roots or cracked clay pipes. Jetting clears the blockage; a CCTV survey shows whether a repair is needed.
Do treatment plants in the villages need servicing even if they seem fine?
Yes. A plant can look fine while its blower or diffusers are failing and it’s discharging poorly treated water. A yearly service catches that before it causes a problem.
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.