Leak Detection Lewisham
Hidden water leaks in Lewisham pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, covering Lewisham, Catford, Deptford, Forest Hill and Blackheath.
No find, no fee
You only pay the detection fee if we locate the leak.
All of Lewisham
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 Lewisham properties leak
Lewisham housing is dominated by Victorian and Edwardian terraces with period conversions. Back-addition kitchens and bathrooms in Victorian terraces concentrate pipework in one damp-prone corner — a frequent hidden-leak hotspot.
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 Lewisham
- 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.
Common leak problems in Lewisham
Hidden Leaks in Back-Addition Corners
The back-addition kitchens and bathrooms common in Lewisham's Victorian and Edwardian terraces concentrate pipework in a single, often damp corner. This creates a perfect hidden-leak hotspot where water damage can spread unseen behind walls and under floors. A musty smell or damp patch in these areas is a clear sign to call us immediately.
Leaking Lead or Old Iron Pipes
Original plumbing in period properties often used lead or galvanised iron pipes, which corrode and fail over decades. A sudden drop in water pressure or discoloured water can signal a pinhole leak or a major failure in these ageing systems. This requires urgent detection and replacement to prevent structural damage and water contamination.
Burst Pipework in Unheated Extensions
Back-addition extensions in these terraces are frequently less insulated than the main house. During cold snaps, pipes in these spaces are first to freeze and burst. If you hear running water when all taps are off or see sudden damp in a kitchen corner, shut off the water and call our 24/7 team.
Leaks Under Suspended Timber Floors
Ground floors in these period homes are typically suspended timber. A leak from the concentrated pipework above can drip down, pooling in the dark, ventilated space beneath. Warping floorboards, a persistent damp smell, or visible mould along skirting boards are urgent signs that need our leak detection specialists.
From the forums
Leak Detection Across Lewisham's Terraces and Conversions
What we detect
Leak detection services in Lewisham
Leak Detection
24/7 Emergency Detection
Acoustic Detection
Fast Leak Detection
Thermal Imaging
Non-Invasive Leak Detection
Tracer Gas
24/7 Emergency Response
Underground Leaks
Emergency Underground Detection
Heating Leaks
Emergency Heating Leaks
UFH Leaks
24/7 Emergency Response
Trace & Access
Emergency Leak Detection
Leak Repair
Emergency Leak Response
Areas we cover in Lewisham
Also need an emergency plumber rather than detection? Emergency Plumber Lewisham →
Where we work
Lewisham coverage map
Map data © OpenStreetMap contributors.
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Leak detection in Lewisham — FAQs
How quickly can you attend a leak in Lewisham?
Same-day appointments are usually available in Lewisham, 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 Lewisham 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 Lewisham detection visit, typically within 48 hours. They are structured the way UK loss adjusters expect.
Which parts of Lewisham do you cover?
All of it — including Lewisham, Catford, Deptford, Forest Hill, Blackheath. We cover every London borough, so coverage never depends on which side of a postcode line you live.
My Forest Hill house has damp on a hillside wall. Is it a leak or the ground?
Hillside properties around Forest Hill and Honor Oak can show damp from ground moisture as well as from plumbing, so the two are easy to confuse. Non-invasive tracing, using moisture readings, thermal imaging and acoustic checks, helps establish whether a pressurised pipe is losing water before any wall is opened. A typical fixed-fee investigation runs in the usual UK trade cost-guide range of around 250 to 450 pounds.
There's a leak between two flats in a Lewisham conversion. Who is responsible?
In converted flats around Deptford and central Lewisham, shared or ambiguous supply runs make it hard to know which home a leak sits in. Locating the exact source first gives both parties clear evidence, which usually helps resolve who pays under the lease or between insurers. We focus on finding and confirming the source; responsibility itself depends on your lease terms and any freeholder or managing agent arrangements.
Read before you book
Leak detection guides
How to Choose a Leak Detection Company in London: Speed is Everything
Choosing a leak detection company in London comes down to one critical factor: response speed. Here’s how to ensure you get immediate, 24/7 action.
ReadCheap Leak Detection in London: What's the Real Cost of a Slow Response?
Opting for 'cheap' leak detection can lead to massive hidden costs from escalating damage. True value lies in immediate, 24/7 emergency response to limit destruction.
ReadNo Find, No Fee Leak Detection Explained: Your Guarantee of Results
Our 'no find, no fee' guarantee means you pay nothing if our emergency engineers can't locate your leak. It's our commitment to fast, effective results, day or night.
ReadTrace and Access Insurance Claims: Your Step-by-Step Guide
A fast, clear guide to navigating a trace and access insurance claim after a leak, detailing the immediate steps and the professional documentation required.
ReadSigns of a Hidden Water Leak at Home & What to Do Immediately
Unexplained damp patches, mould, or a suddenly high water bill are urgent signs of a hidden leak. Learn the critical indicators and why immediate professional detection is essential.
ReadHow Leak Detection Works: The Fast Methods Explained
Discover the advanced methods we use for rapid, 24/7 leak detection in London properties, from acoustic listening to thermal imaging, to stop water damage fast.
ReadLeak detection across London
Losing water in Lewisham?
Tell us the symptoms and your postcode. Fixed detection fee, agreed arrival window, no find no fee — confirmed before you book.
Book a detection visit