Built for the leaks London's plumbers couldn't find.
FlowTrace was founded in 2025 because too many London property owners were wasting money on guesswork. We connect you with hand-picked leak detection specialists — not a call centre, not a directory.
Specialist leak detection, done properly.
In 2025, we started FlowTrace because we kept seeing the same problem: London property owners with hidden leaks were getting passed from general plumbers to damp surveyors to builders — none of whom had the specialist equipment to actually locate the source.
Hidden leak detection is a distinct discipline. It requires thermal cameras, acoustic profiling tools, tracer gas equipment, and the expertise to interpret what those tools find. A skilled plumber is not the same as a skilled leak detection specialist — and that distinction matters when you're deciding whether to open up a floor or a wall.
We built a network of hand-picked specialists across Greater London — people with decades of detection-specific experience — and created a way to match them to the right jobs. No generalists. No guesswork.
Specialist expertise, not generalist guesswork.
Across our specialist network, we have over 20 years of combined experience in leak detection specifically — not plumbing in general, not damp surveys, not building inspections. Detection.
That means our specialists know when acoustic profiling will find a pipe failure under a concrete floor, and when tracer gas is the right tool to isolate a pressurised system leak. They know how to read a thermal image properly and how to interpret moisture mapping results in context.
The result is less disruption to your property, a faster answer, and a clear report you can use with your insurer or pass directly to your plumber.
Diagnosis First
We locate the source before anything gets opened up.
Non-Invasive Methods
Thermal, acoustic, and tracer gas — find it without damage.
Insurance-Ready Reports
Photographic trace and access reports for your claim.
Hand-Picked Specialists
Every specialist in our network is chosen for detection expertise.
Have a leak that needs finding?
Send us the details via WhatsApp and we'll review your situation and advise on the right next step.