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Leak Detection Hanwell
Hidden water leaks in Hanwell pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, from engineers who know Hanwell buildings.
Local knowledge
Hanwell housing, from a leak engineer's side
Hanwell is characterised by 1930s semis and purpose-built low-rise maisonettes, often with larger gardens. Properties frequently have longer external pipe runs to rear additions and garages. Original asbestos cement soil pipes are also a notable feature. The construction typically includes cavity walls and accessible loft spaces that house water tanks and pipework.
Engineer's note
Hanwell's longer pipe runs and external challenges make thermal imaging for frost damage and tracer gas for cavity wall leaks our standard protocols.
Covered in Hanwell
- 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 Hanwell
01
Long External Run Frost Damage
Supply pipes to outbuildings or rear kitchens are vulnerable to freezing. Splits often occur at elbow joints inside the cavity wall where the pipe exits. Thermal imaging from inside the house identifies the exact cold breach point in the building fabric.
02
Maisonette Header Tank Leaks
Purpose-built maisonettes often have shared cold-water tanks in the loft. Overflows and feed pipes to individual flats can develop slow leaks. Dye testing in the tank, combined with moisture mapping of the ceiling below, visually confirms which feed pipe is faulty.
03
Asbestos Cement Soil Pipe Leaks
Degraded joints or hairline cracks in original asbestos cement soil stacks cause persistent damp patches. For safety, non-invasive methods are paramount. We use a combination of thermal imaging to track moisture and endoscopic cameras to inspect joints internally where accessible.
04
Cavity Wall Concealed Leaks
Leaks from internal pipes running in the cavity can travel far before showing internally. Tracer gas injected into the plumbing system will seep into the cavity and escape at air bricks or cracks, providing a clear external signal of the leak zone.
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 Hanwell — FAQs
How quickly can you attend a leak in Hanwell?
Same-day appointments are usually available in Hanwell and across Ealing, 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 Hanwell?
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 Hanwell properties?
Yes — Hanwell is characterised by 1930s semis and purpose-built low-rise maisonettes, often with larger gardens. Properties frequently have longer external pipe runs to rear additions and garages. Original asbestos cement soil pipes are also a notable feature. The construction typically includes cavity walls and accessible loft spaces that house water tanks and pipework.
Can you provide a report for my insurer?
Every Hanwell 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
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No Find, No Fee Leak Detection Explained: How Advanced Technology Guarantees Precision
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ReadWhere we work
Hanwell & Ealing
Map data © OpenStreetMap contributors.
Losing water in Hanwell?
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