Leak Detection Streatham
Hidden water leaks in Streatham pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, from engineers who know Streatham buildings.
Local knowledge
Streatham housing, from a leak engineer's side
Streatham offers a mix of substantial inter-war semi-detached houses, larger Victorian properties, and several notable estates. The inter-war homes often have original iron plumbing, while the Victorian stock shares conversion issues. A key feature is the prevalence of side-return and rear extensions, which frequently altered original drainage paths. Leaks often involve these modified systems, where responsibility can be unclear between original structure and later additions.
Engineer's note
We focus on distinguishing leaks from original structures versus later modifications in Streatham, a critical determination for insurers navigating coverage under different policy sections.
Covered in Streatham
- 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 Streatham
01
Leaks in Extension Roof Junctions
Many properties have rear extensions where the new roof ties into the old wall. Faulty flashing at this junction is a common leak source, with water entering the main house structure. We trace internal damp patches back to this specific external failure point. This evidence allows insurers to confirm the repair is covered under the buildings policy, not as a contents issue.
02
Failed Iron Waste Stacks
Original cast iron waste stacks in inter-war semis are corroding, causing leaks that affect multiple floors inside the property and potentially neighbouring homes in terraces. We locate the precise corrosion point. Our report details the extent of deterioration, helping insurers decide between a local repair or a full stack replacement.
03
Leaks from Shared Boundary Drains
Drainage runs shared between semi-detached properties can block or fracture, causing backups and ground leaks that affect both homes. We use drain cameras to identify the exact location and cause of the failure within the shared run. This proof is essential for insurers to process claims where costs may be split between two policies.
04
Leaking Header Tanks in Lofts
Cold water header tanks in loft spaces, serving multiple bathrooms, can develop splits or overflow. Water then permeates through ceiling joists into different parts of the house or flat below. We identify the tank as the source and document any contributing factors like ball valve failure. This clear attribution supports the insurer in recovering costs from any liable third party, such as a maintenance contractor.
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 Streatham — FAQs
How quickly can you attend a leak in Streatham?
Same-day appointments are usually available in Streatham and across Lambeth, 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 Streatham?
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 Streatham properties?
Yes — Streatham offers a mix of substantial inter-war semi-detached houses, larger Victorian properties, and several notable estates. The inter-war homes often have original iron plumbing, while the Victorian stock shares conversion issues. A key feature is the prevalence of side-return and rear extensions, which frequently altered original drainage paths. Leaks often involve these modified systems, where responsibility can be unclear between original structure and later additions.
Can you provide a report for my insurer?
Every Streatham 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 for Insurance Claims
Selecting the right leak detection specialist is crucial for meeting insurer requirements on documentation and ensuring trace & access costs are recoverable. We outline the key procedural steps.
ReadThe Real Cost of Cheap Leak Detection in London for Insurance Claims
Opting for cheap leak detection in London can jeopardise your insurance claim. We detail the procedural requirements insurers have for trace & access to ensure your costs are recovered.
ReadNo Find, No Fee Leak Detection Explained for Insurance Claims
Our no-find-no-fee leak detection service is designed to support insurance claims by professionally locating hidden leaks and providing the documentation insurers require.
ReadWhere we work
Streatham & Lambeth
Map data © OpenStreetMap contributors.
Losing water in Streatham?
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