London's Specialist Leak Engineers
30+ years of specialist leak detection experience. Serving homeowners, insurers, landlords and managing agents across London, Surrey and Kent.
Dedicated Leak Detection.
Nothing Else.
Clear Flow Leak Detection is a specialist water leak detection company based in London. Unlike general plumbers who offer leak detection as a sideline, we do one thing — find leaks. That focus means better equipment, better-trained engineers, and a more reliable outcome for our customers.
Founded by Wayne, a master plumber with over 30 years of experience in London's residential and commercial property market, Clear Flow was built on the frustration of watching homeowners go through unnecessary damage because a leak was never properly located. We fix that by finding the source precisely before any access work begins.
We work with homeowners, managing agents, property investors, landlords, and insurance companies across all 32 London boroughs, Surrey and Kent. Whether it's a mains supply pipe beneath a tiled kitchen floor or an underfloor heating leak in a new-build apartment, we have the technology and the experience to find it.
Making The
Invisible Visible
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Non-Invasive Detection
Thermal imaging, tracer gas and acoustic equipment locate water leaks through concrete, timber and tile without damage to your property. No guesswork, no unnecessary excavation.
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Insurance-Ready Reports
Written report with photographs delivered within 24 hours, accepted by all major insurers for trace and access claims. We handle the documentation so your claim goes through first time.
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Same-Day Find & Fix
Qualified engineers carry detection kit and repair materials. Most water leaks located and fixed in a single visit across London, Surrey and Kent.
How We Work
Non-Invasive First
We never start with a spade. Thermal imaging, tracer gas, and acoustic equipment locate the precise source of a leak before any access work is considered. Less damage to your property. Less disruption to your day.
NoFindNoFee Guarantee
If we can't locate the source of the leak, you don't pay for the investigation. It's a straightforward guarantee that puts the risk on us. We back ourselves because our detection success rate is high — but you shouldn't pay for uncertainty.
Insurance-Ready Reports
Every investigation comes with a full written report, formatted to meet insurer requirements. Photographs, findings, and recommendations — delivered within 24 to 48 hours. We handle the documentation so your trace and access claim goes through first time.
WaterSafe Registered
All our engineers are WaterSafe registered — the UK's benchmark for high-quality work on plumbing and drainage systems. We're DBS checked, fully insured, and Checkatrade approved. Complete peace of mind when we're in your home.
Qualified, Verified, Insured
We hold every accreditation and registration you would expect from a specialist company working in your home or investment property.
The national quality mark for water fittings installation and associated work in the UK.
All engineers are vetted, background-checked and rated on Checkatrade by verified customers.
Enhanced Disclosure and Barring Service checks on every engineer working in residential properties.
Full public liability insurance covering all work carried out on residential and commercial properties.
GOT A LEAK?
WE'RE READY.
Same-day and emergency appointments available across London and the South East. Most leaks found and fixed in a single visit.