Speak to a Specialist
Speak to a Specialist
Balham · SW12, SW17

Leak Detection in Balham

Non-destructive water leak detection across Balham, 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 17 Google reviews · trusted by Balham homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Balham, 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.
On this page

Leak to dry to treated, one company in Balham

Balham's housing stock is dominated by tall Victorian and Edwardian terraces, many long since converted into two or three flats stacked one above another, alongside interwar mansion blocks such as Du Cane Court. Original clay drainage runs, ageing bathroom seals and shared risers sit behind decades of redecoration, so a small failure upstairs often shows up as a stain or drip in the flat below before anyone realises there is a problem.

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 Balham we cover

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

Common leaks in Balham homes

Converted terraces with bathrooms stacked over living rooms

Many Balham terraces on streets like Ramsden Road and Chestnut Grove were split into flats with the bathroom positioned directly above a neighbour's kitchen or lounge. A perished shower seal, cracked waste pipe joint or grouting failure at floor level can send water through original lath and plaster ceilings for weeks, staining plasterwork long before the leaseholder upstairs notices anything amiss.

Flat roofs on mansion blocks and rear additions

Interwar mansion blocks around Balham High Road and the flat-roofed rear extensions common on Edwardian terraces near Hyde Farm both rely on felt or asphalt coverings that degrade with age and weather cycling. Once splits open up at joints or upstands, rainwater tracks sideways under the membrane and enters ceilings well away from the original defect, making the source hard to pin down without investigation.

Hidden pipework failures behind period fittings

Balham's older buildings, including conversions near Wandsworth Common and Tooting Bec, often retain original or early-replacement copper and lead plumbing routed under floorboards and behind boxed-in fittings. Corrosion, poor historic soldering or ground movement can cause a slow escape of water that goes undetected under flooring for some time, leaving damp subfloors and swollen skirting as the first visible clue.

What our customers say

★★★★★

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

★★★★★

Very helpful and professional, easy to communicate with about my mould issues and I received fast responses from the company on the best solutions for me. would recommend to all friends and family. 5/5

Jensen B, via Google

★★★★★

I recently used a damp and mould specialist company and was extremely impressed with the service from start to finish. From the initial survey, they were knowledgeable, thorough, and took the time to clearly explain the cause of the issue rather than just treating the symptoms.

Tarik Barak, 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 Balham?

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

Frequently asked questions

How much does leak detection in Balham 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.