CLEARMASTERS
call-outs
4,000 psi
the cause
tankers
in drainage
The basics
Why sewers need cleaning
Over time, sewers and larger drains collect silt, grit, fat, scale and roots. As the build-up grows, the pipe loses capacity until it starts to block, surcharge or flood, often in heavy rain.
If there are no plans, we can trace and map the drains before work starts, and once the sewer is clean a CCTV survey will record its condition and any repairs needed.
We do this work across Surrey, West Sussex, East Sussex, Kent, Hampshire and London, with tankers and engineers in each area most days.
Cleaning and desilting removes that build-up and restores the pipe’s full capacity. We use high-pressure jetting to loosen it and vacuum tankers to take it away, so it isn’t just washed further down the network.
How it works
How a sewer is cleaned
Silt and debris are jetted back to the manhole, where the tanker’s vacuum hose removes them.
On the day
Our sewer cleaning process
Plan
We review drainage plans and existing survey data, and plan access and traffic management.
Jet and vacuum
We jet each length back to the manhole and vacuum out the silt and debris.
Check
A CCTV survey confirms the pipe is clean and records its condition.
Report and plan ahead
A clear report, with a maintenance schedule to stop it building up again.
Why Clearmasters
Why choose Clearmasters?
We have the tankers, the jetting kit and the CCTV to clean a sewer and prove it, with licensed disposal and the paperwork to match.
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.
Reports and paperwork
CCTV records and waste transfer notes for your files.
What our customers say
Checkatrade
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Scores as of September 2026
Questions answered
Sewer cleaning FAQs
How often should sewers be cleaned?
It depends on how busy the system is and what goes into it. Many commercial and managed systems benefit from cleaning once or twice a year.
Do you clean public sewers?
Public sewers are the responsibility of the water company. We clean private sewers and drainage networks on commercial sites, developments and managed estates.
Can you clean large-diameter sewers?
Yes. Our tankers and jetting equipment handle larger pipes as well as domestic drains. Tell us the pipe sizes and we’ll confirm the right kit.
Do you provide a report?
Yes. We can survey the sewer with CCTV after cleaning and provide a report on its condition.
Do you offer 24/7 response?
Yes. Our tankers and engineers are available 24/7 for blockages and flooding.
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.