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Ealing, London
Leak Detection Ealing
Hidden water leaks in Ealing pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, covering Ealing, Acton, Hanwell, Southall and Greenford.
No find, no fee
You only pay the detection fee if we locate the leak.
All of Ealing
Same-day and next-day cover across the whole borough.
Insurer-ready reports
Trace & access documentation loss adjusters accept.
Multi-method survey
Acoustic, thermal, tracer gas and moisture on every visit.
Local knowledge
How Ealing properties leak
Ealing housing is dominated by Edwardian terraces, 1930s semis and purpose-built maisonettes. Edwardian houses here often keep original lead or iron rising mains; corrosion at the stop-tap joint under the front hall floor is a common find.
Knowing the local building stock matters: it tells us where the pipework usually runs, which materials to expect, and which detection method will get to the answer fastest — before we arrive.
Covered in Ealing
- Hidden leaks under floors and in walls
- Underground supply pipe leaks
- Central heating and boiler pressure loss
- Underfloor heating loop leaks
- Flat-to-flat leak origin investigations
- Trace & access reports for insurance claims
Three methods, one marked point
Acoustic survey
Ground microphones and correlators follow the sound of escaping water through floors and ground.
Thermal imaging
Infrared cameras reveal wet patches and buried heating runs through the floor surface.
Tracer gas
A safe hydrogen mix escapes through the exact failure point and rises to our surface detector.
What fails here
Common leak problems in Ealing
01
Corroded lead or iron rising main under the hall
Across Ealing's Edwardian and interwar houses the original lead or iron rising main often enters under a solid front hall floor, with the stop-tap in a cramped recess. Hard London water thins these pipes from within until the joint weeps into the sub-floor, showing as damp skirtings and a creeping meter rather than an obvious leak. We pressure-test the main and trace acoustically to replace only the failed length.
02
Screed-buried heating pipe leaks in period floors
Heating added to the borough's semis and conversions from the 1960s on was frequently chased into floor screed. A pinhole on that buried run bleeds into the slab, dropping boiler pressure daily and warming a patch of floor while nothing surfaces. Owners top up for weeks as the screed saturates. We pressure-test the circuit and trace the pipe thermally, exposing the single failed section rather than the whole floor.
03
Underground supply pipe losing water before the house
Many Ealing homes still run on an old lead or galvanised supply pipe crossing the front garden, path or drive. When it corrodes or an old joint fails, water escapes underground and the metered bill climbs while the surface stays dry. We pressure-test the incoming supply and use tracing and correlation to pinpoint the break, so the repair targets one section instead of digging the whole run. Detection is offered on a no find, no fee basis.
04
Misleading damp stain far from the real leak
In the borough's mansion flats, conversions and maisonettes, water from a concealed pipe travels along slabs and floor voids before it surfaces, so a ceiling stain or damp wall often sits well away from the fault. Opening at the visible damage misses the source and multiplies the mess. We trace live pipework under pressure and map moisture to locate the leak precisely before any access is cut.
From the forums
Leak Detection in Ealing's Terraces, Semis and Mansion Flats
Across housing and DIY forums, Ealing residents describe a fairly consistent set of problems for a borough of Edwardian terraces, 1930s semis, mansion flats and later maisonettes. A common theme is old lead or iron rising mains that have corroded over decades, sometimes weeping slowly under solid hall floors where the stop-tap sits, so damp appears with no obvious source. People in converted flats often mention shared or unclear supply pipes, which makes it hard to tell whose leak it is or where the run goes. Others report struggling to separate a genuine water leak from rising or penetrating damp, and worry about lifting original tiled or concrete floors unnecessarily. The general advice that recurs is to locate the leak before opening anything up, rather than guessing and digging.
What we detect
Leak detection services in Ealing
Leak Detection
No find, no fee
Acoustic Detection
Listen. Locate. Repair.
Thermal Imaging
See through floors and walls
Tracer Gas
For the leaks nothing else finds
Underground Leaks
Locate before you excavate
Heating Leaks
Boiler pressure dropping? There’s a reason.
UFH Leaks
One tile up, not the whole floor
Trace & Access
Insurer-ready from the first visit
Leak Repair
Found. Fixed. Retested.
Where we work
Ealing coverage map
Map data © OpenStreetMap contributors.
Don’t get caught out
How to Choose a Leak Detection Company in London (Without Getting Burned)
A plain-English buyer's guide to hiring a leak detection firm in London: why cheap hourly rates backfire, what real equipment looks like, how to read no-find-no-fee small print, and who is actually responsible for the pipe.
Leak detection in Ealing — FAQs
How quickly can you attend a leak in Ealing?
Same-day appointments are usually available in Ealing, and next-day almost always. If water is actively escaping, tell us when you book — live leaks are prioritised and we can talk you through isolating the supply while an engineer travels.
Do you charge if you can’t find the leak?
No. Every detection visit in Ealing is covered by our no find, no fee promise: if we attend a confirmed live leak and cannot locate it, the detection fee is waived.
Can you provide a report for my insurer?
Yes — trace and access reports documenting the cause, precise origin and affected areas are available for every Ealing detection visit, typically within 48 hours. They are structured the way UK loss adjusters expect.
Which parts of Ealing do you cover?
All of it — including Ealing, Acton, Hanwell, Southall, Greenford. We cover every London borough, so coverage never depends on which side of a postcode line you live.
My Ealing house still has an old lead or iron rising main under the hall floor. Can you find a leak without lifting the whole floor?
Usually yes. On Edwardian terraces and 1930s semis the rising main and stop-tap often sit under a solid hall floor, so we use acoustic listening, tracing and moisture readings to pinpoint the likely spot before anything is lifted. That narrows excavation to a small area rather than the whole hallway. A fixed leak-detection fee typically falls in the £250 to £450 range, in line with UK trade cost-guide figures.
I live in a converted flat or maisonette in Ealing and damp is spreading, but nobody knows whose pipe it is. Can you help?
We can trace the supply run to work out where the pipe goes and whether the water is coming from your flat or a shared or neighbouring one. Older conversions often have unclear or shared pipework, so establishing the route first helps with both the repair and any freeholder or neighbour discussion. We also check whether the moisture is a leak at all, rather than rising or penetrating damp, before recommending any work.
Read before you book
Leak detection guides
Leak Detection · 11 min read
How to Choose a Leak Detection Company in London (Without Getting Burned)
A plain-English buyer's guide to hiring a leak detection firm in London: why cheap hourly rates backfire, what real equipment looks like, how to read no-find-no-fee small print, and who is actually responsible for the pipe.
ReadPricing · 11 min read
The Real Cost of Cheap Leak Detection in London: A Buyer-Beware Guide
A low headline price for leak detection can end up the most expensive route of all. Here is how hourly billing, single-method surveys and non-compliant reports quietly inflate your final bill, and how to compare fairly.
ReadLeak Detection · 11 min read
No Find, No Fee Leak Detection: What It Really Means (and the Small Print to Check)
No find, no fee sounds like a safe bet, but the phrase means very different things depending on who you book. Here is how a genuine guarantee works, the carve-outs that quietly reintroduce charges, and the questions that protect you before anyone turns up.
ReadInsurance · 11 min read
Trace and Access Insurance Claims: A Step-by-Step Guide (2026)
Trace and access cover pays to find a hidden leak and put your property back together, but only under specific conditions. Here is how the cover works, what voids it, and how to run a claim from first notification to reinstatement.
ReadLeak Detection · 11 min read
10 Signs of a Hidden Water Leak at Home (and What to Do About Each)
A hidden leak rarely announces itself with a burst pipe. It shows up as a creeping bill, a warm patch on the floor, a musty smell you cannot place. Here are the ten signs worth taking seriously, what each one usually means, and the first sensible check to make before anything gets torn up.
ReadLeak Detection · 11 min read
How Leak Detection Actually Works: The Methods Explained
Acoustic, thermal, tracer gas, moisture mapping and pressure testing each find a different kind of leak. Here is what every method is genuinely good and bad at, why one tool on its own misses so much, and how a real survey moves from a damp patch to a marked repair point.
ReadLeak detection across London
Losing water in Ealing?
Tell us the symptoms and your postcode. Fixed detection fee, agreed arrival window, no find no fee — confirmed before you book.
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