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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.

★★★★★ 5.0 from 20 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 a fixed £650. Tell us when you need us and we will fit the visit around you as closely as we can. If it is urgent, call 020 3051 8478.

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

Excellent
Rated 5.0 / 5 based on 20 reviews on
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?

Tell us the date you would like. Next-day visits are possible for urgent leaks: call the team on 020 3051 8478 and we will confirm a time.

Book online

Frequently asked questions

How much does leak detection in Streatham cost?
Leak detection is a fixed £650. Tell us when you need us and we will fit the visit around you as closely as we can. If it is urgent, call us on 020 3051 8478. 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.

More help in Streatham

Damp and mould survey

Find the real cause of damp, mould or a leak in a Streatham property, with a written report and photographs. Damp survey in Streatham →

Structural drying

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

Mould removal

Treat black mould in a Streatham property and fix the moisture source behind it. Mould removal in Streatham →

See what you get before you book: read a real survey report from start to finish.