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Clapham North · SW4, SW9

Leak Detection in Clapham North

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

★★★★★ 5.0 from 21 Google reviews · trusted by Clapham North homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Clapham North, 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 Clapham North

Clapham North is dominated by tall Victorian terraces split into flats, along with mansion blocks near the High Street and low-rise conversions towards Stockwell and Larkhall Park. Shared soil stacks, communal flat roofs over rear extensions, and stacked bathrooms plumbed one above another mean a single failed joint or perished seal can send water tracking through several floors before anyone notices.

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 Clapham North we cover

We attend leaks right across Clapham North and its neighbourhoods, including:

Common leaks in Clapham North homes

Stacked bathrooms in Victorian conversions

Many Clapham North terraces were split into two or three flats, each retaining its original bathroom directly above the one below. Waste pipes, shower trays and bath seals installed decades ago sit hidden behind boxing and floorboards. When a seal perishes or a solvent-weld joint fails, water seeps into the ceiling void of the flat beneath, often tracking sideways along joists before staining plasterboard, so the visible mark rarely sits below the actual leak point.

Flat roof extensions over kitchens and reception rooms

Rear additions on the terraced streets around Clapham Park and Abbeville Village typically carry a felt or GRP flat roof over an extended kitchen or living space. These roofs age faster than pitched slate and are prone to splitting at upstands, parapets and rooflight junctions. Water entering through a cracked membrane can travel along the roof deck before dropping through a light fitting metres away, making the leak source difficult to pinpoint without opening the ceiling.

Failed plumbing in converted and mansion block flats

Purpose-built mansion blocks and subdivided houses near Clapham High Street and Stockwell often run concealed pipework through boxed ducts, kitchen cupboards and communal risers. Corroded compression joints, cracked isolation valves under sinks, or a failed connection behind a dishwasher can leak steadily for weeks in a low-use area. In blocks with shared risers, escape of water frequently affects the flat below rather than the source flat itself, complicating early detection.

What our customers say

Excellent
Rated 5.0 / 5 based on 21 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 Clapham North?

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.

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Frequently asked questions

How much does leak detection in Clapham North 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 Clapham North

Damp and mould survey

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

Structural drying

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

Mould removal

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

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