Speak to a Specialist
Speak to a Specialist
Streatham · SW16, SW2

Leak Detection in Streatham

Non-destructive water leak detection across Streatham, tracing hidden leaks with thermal imaging, acoustic sensors and tracer gas, then drying and treating the damage before it becomes mould.

Call 020 3051 8478Report a leak
★★★★★ 4.9 from 18 Google reviews · trusted by Streatham homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Streatham, our specialists trace the source without tearing the place apart, using thermal, acoustic and tracer-gas methods. A leak is not over when the water stops. Mould can start within 48 hours, so we find the source, dry the structure and treat any mould, all with one company. Leak detection is £800 to £1500 depending on scale. Call 020 3051 8478.
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Leak to dry to treated, one company in Streatham

Streatham's housing stock ranges from Victorian and Edwardian terraces carved into flats around Furzedown and Streatham Wells, to 1930s mansion blocks along Streatham Hill and Leigham Court, plus semi-detached houses with rear extensions in Streatham Vale and Streatham Park. This mix of subdivided period properties, ageing flat roofs and bolted-on extensions creates repeated opportunities for hidden leaks between floors and flats.

Leak Detection

Trace hidden water leaks without unnecessary damage using thermal, acoustic and tracer-gas methods. Leak detection →

Structural Drying

Dry walls, floors and voids after a leak or flood with monitored dehumidifiers, to completion. Structural drying →

Mould Treatment

Treat and prevent the mould that follows water damage, dealing with the moisture source first. Mould treatment →

Damp Investigation

Tell rising damp, penetrating damp and condensation apart, so the right repair is done once. Damp investigation →

Areas of Streatham we cover

We attend leaks right across Streatham and its neighbourhoods, including:

Common leaks in Streatham homes

Converted Victorian terraces with stacked bathrooms

Many Streatham terraces near Furzedown and Streatham Wells were split into two or three flats, often stacking bathrooms directly above kitchens or living rooms below. Old lead or push-fit pipework hidden under floorboards can fail quietly, with water tracking along joists before it stains a ceiling in the flat beneath, sometimes weeks after the original leak began.

Flat roofs on 1930s mansion blocks

The mansion blocks around Streatham Hill and Leigham Court typically have flat or low-pitch roofs with felt or asphalt coverings and parapet or valley gutters. These wear thin, crack, or block with debris over decades, letting rainwater seep through into top-floor flats. Because the roof void is often inaccessible, water can travel sideways before it shows as a damp patch several metres from the actual defect.

Rear extensions and perished seals on semis

Semi-detached houses in Streatham Vale and Streatham Park frequently have single-storey rear extensions with flat felt or GRP roofs over kitchens and bathrooms. Perished seals around roof lights, soil pipes and shower trays let water escape gradually into the extension ceiling below, often unnoticed until plasterboard sags or a light fitting shows staining, long after the seal first failed.

What our customers say

★★★★★

Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.

Keiryn Raf, via Google

★★★★★

Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)

Joeie Rouse, via Google

★★★★★

I have been dealing with damp and mould for years but these guys were able to come in and resolve the problem quickly and professionally. Their prices were fair and reasonable and they got the job done clean. 10/10 would use again and would recommend.

Thersa Waron Eurmind, via Google

Tip: If your water meter ticks over with every tap off, or a wall or ceiling stays damp with no obvious cause, there is a hidden leak. Finding it early is far cheaper than repairing the mould and damage it leaves behind.

Suspect a leak in Streatham?

Call 020 3051 8478 or report a leak online. We trace, dry and treat for homeowners, landlords and managing agents across Streatham.

Frequently asked questions

How much does leak detection in Streatham cost?
Leak detection is £800 to £1500 depending on the scale and access. You get a written, insurance-ready report identifying the source.
Will you damage my home finding the leak?
No. We use non-destructive thermal imaging, acoustic sensors and tracer gas to pinpoint the leak before any access is opened up, so repairs are targeted.
Do you fix the damage after finding the leak?
Yes. A leak is not over when the water stops. We dry the structure with monitored dehumidifiers and treat any mould, so it is handled end to end.
Do you provide reports for insurance claims?
Yes. Every leak investigation comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.