CLEARMASTERS
call-outs
4,000 psi
the cause
tankers
in drainage
Quick check
Where’s your blockage?
Answer three quick questions to work out roughly where your blockage is, and whether it’s likely to be yours or your water company’s to sort out.
Whatever the answer, we can clear it. Our engineers use high-pressure jetting and CCTV cameras to find the blockage, clear it and check the drain afterwards.
If a drain keeps blocking, a CCTV drain survey will show why. Common causes are tree roots and cracked or displaced pipes, which we can often fix with drain lining instead of digging.
We do this work across Surrey, West Sussex, East Sussex, Kent, Hampshire and London, with tankers and engineers in each area most days.
1. Is it just one sink, bath, shower or toilet?
2. Lift your nearest outside manhole cover. Is it full of water or waste?
3. Are your neighbours having problems too?
A quick guide only. Don’t lift heavy or damaged covers, and never climb into a manhole.
Warning signs
Signs of a blocked drain
Drains rarely block without warning. Water starts draining slowly, plugholes gurgle and smells appear, often days or weeks before a drain stops completely.
Acting on the early signs is cheaper, and avoids the mess of sewage backing up into the house or overflowing from a manhole.
Call us if you notice
- Slow-draining sinks, baths or showers
- Gurgling from plugholes or toilets
- Bad smells from drains or manholes
- An overflowing manhole or standing water outside
- Toilets backing up
On the day
How we unblock your drain
Find it
We lift the covers and, if needed, use a camera to find the blockage.
Clear it
High-pressure jetting breaks up the blockage and cleans the pipe.
Check it
A camera check confirms it’s clear and shows any damage that caused it.
Stop it coming back
If there’s a cause, like roots or a broken pipe, we’ll explain the options.
Prevention
How to stop your drains blocking
Do
- Scrape plates into the bin and wipe greasy pans with kitchen roll
- Put wipes, nappies, cotton buds and sanitary products in the bin
- Use sink strainers to catch food and hair
- Keep gullies and grates clear of leaves
- Have problem drains checked with a camera
Don't
- Pour fat, oil or grease down the sink, even with hot water
- Flush ‘flushable’ wipes: they don’t break down like paper
- Rely on chemical drain cleaners for a blockage that keeps coming back
- Plant trees close to drains
- Ignore slow drains and gurgling
Why Clearmasters
Why call Clearmasters?
We clear blocked drains every day and night of the year. Our engineers arrive with jetting kit and a camera, so they can clear it and tell you why it happened.
Ask us a questionDay or night
We’re on call 24/7, 365 days a year, for blocked drains and flooding.
We find the cause
A camera check shows why it blocked, so it doesn’t keep happening.
We can fix it properly
Root cutting, lining and repairs by the same team, if the drain needs more than clearing.
Planned maintenance
Regular jetting for businesses and problem drains, so they don’t block in the first place.
What our customers say
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Scores as of September 2026
Questions answered
Drain unblocking FAQs
How quickly can you get to me?
We’re available 24/7 and will get to you as quickly as we can. Call us and we’ll give you an idea of timings.
Can I clear a blocked drain myself?
A plunger can shift a blockage in a single sink or toilet. For anything further down, or a drain that keeps blocking, it needs jetting. Don’t climb into manholes, and be careful with chemical drain cleaners, which can damage pipes.
Is the blocked drain my responsibility?
You’re usually responsible for pipes that only serve your property and are within its boundary. Shared drains and the parts of your drain outside your boundary are usually your water company’s responsibility, since October 2011.
Why does my drain keep blocking?
Usually because of roots, a damaged or displaced pipe, or a build-up of fat or scale. A camera check will find the cause.
Will jetting damage my pipes?
Not when it’s done properly. Our engineers adjust the pressure and nozzle to suit the pipe, and take extra care with older, more fragile pipes.
Do you offer maintenance for businesses?
Yes. Regular jetting keeps busy drains, especially in commercial kitchens, flowing and avoids emergency call-outs.
Got a different question? Call 03333 233566 or send us a message.
Related services
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.