Leak Detection Catford
Hidden water leaks in Catford pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, from engineers who know Catford buildings.
Local knowledge
Catford housing, from a leak engineer's side
Catford is characterised by extensive rows of late-Victorian and Edwardian terraced housing, many with original rear outbuildings converted into full kitchen-diner extensions. These single-story back-additions often have shallow concrete slabs poured directly over original yard drainage, trapping moisture. The pipework here is typically a mix of original lead feeds and modern plastic, buried in the slab or running in a shallow void, highly susceptible to ground movement and compression.
Engineer's note
Thermal imaging is critical here to map moisture spread within concrete slabs, distinguishing plumbing leaks from ground damp before any excavation.
Covered in Catford
- 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
What fails here
Common leak problems in Catford
01
Slab-Embedded Leak Sources
Hot and cold feeds to back-addition kitchens are often buried within thin concrete slabs. Pinhole leaks from corroded copper pipes permeate the slab, creating rising damp symptoms that misdiagnose as a ground moisture issue.
02
Compression Damage to Plastic Pipe
Plastic pipe runs in shallow floor voids under back-additions are vulnerable to compression from settled concrete or point loads. This creates slow, weeping leaks at deformed pipe sections that are extremely difficult to visually locate.
03
Blocked Original Yard Drains
Waste lines from new bathrooms often tie into old, fractured clay yard drains. Blockages cause back-pressure and leaks at poor junctions under the new floor, flooding the sub-slab void.
04
Leaks at Lead-to-Modern Transitions
The original lead supply from the street often terminates at a soldered junction in the back-addition wall. Differential movement between the main house and extension stresses this joint, a frequent failure point.
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.
Leak detection in Catford — FAQs
How quickly can you attend a leak in Catford?
Same-day appointments are usually available in Catford and across Lewisham, and next-day almost always. If water is actively escaping, say so when you book — live leaks are prioritised and we can talk you through isolating the supply while the engineer travels.
What does leak detection cost in Catford?
A fixed fee agreed at booking — typically £250–£450 for a domestic detection visit — covered by no find, no fee. That includes pressure testing per circuit, thermal imaging, acoustic survey and moisture mapping. Repairs are quoted separately before any work starts.
Do you know Catford properties?
Yes — Catford is characterised by extensive rows of late-Victorian and Edwardian terraced housing, many with original rear outbuildings converted into full kitchen-diner extensions. These single-story back-additions often have shallow concrete slabs poured directly over original yard drainage, trapping moisture. The pipework here is typically a mix of original lead feeds and modern plastic, buried in the slab or running in a shallow void, highly susceptible to ground movement and compression.
Can you provide a report for my insurer?
Every Catford detection visit can produce an insurer-ready trace and access report — cause, precise origin, methods used, moisture map and photos — typically within 48 hours.
Read before you book
Leak detection guides
How to Choose a Leak Detection Company in London: A Guide to Technology & Precision
Selecting a leak detection company requires evaluating their technology, methodology, and commercial sector expertise. Here's what to prioritise.
ReadNo Find, No Fee Leak Detection Explained: How Advanced Technology Guarantees Precision
Our 'no find, no fee' policy is underpinned by advanced, non-invasive detection technology, providing landlords and commercial property managers with a precise, risk-free solution for locating hidden water leaks.
ReadA Step-by-Step Guide to Trace and Access Insurance Claims
A technical guide detailing the systematic process for trace and access insurance claims, from initial leak detection to final reinstatement, for property owners and managers.
ReadWhere we work
Catford & Lewisham
Map data © OpenStreetMap contributors.
Losing water in Catford?
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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