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Seven Sisters · N15

Leak Detection in Seven Sisters

Non-destructive water leak detection across Seven Sisters, 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 19 Google reviews · trusted by Seven Sisters homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Seven Sisters, 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 Seven Sisters

Seven Sisters is dominated by Victorian and Edwardian terraces long ago split into flats, alongside 1930s conversions and low-rise post-war blocks around Broad Lane and Tottenham Hale. Many properties share aging soil stacks, converted bathrooms stacked above ground-floor rooms, and flat-roofed rear additions, so a single failed joint or perished seal often tracks silently through several floors before staining ever appears.

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 Seven Sisters we cover

We attend leaks right across Seven Sisters and its neighbourhoods, including:

Common leaks in Seven Sisters homes

Converted flats with stacked bathrooms

Seven Sisters's terraces were subdivided decades ago, leaving bathrooms directly above kitchens or living rooms in flats that share a single freeholder's pipework. A leaking shower tray or failed silicone seal on an upper floor can seep between joists unnoticed, showing up as a ceiling stain in the flat below long after the water has soaked into timber and plaster.

Flat roof extensions to kitchens and bathrooms

Rear kitchen and bathroom extensions with flat felt or GRP roofs are common across Tottenham and West Green terraces. Once the roofing membrane ages or blisters, water tracks along joists rather than dripping straight through, so damp patches often appear well away from the actual defect, delaying discovery until timber and insulation are already saturated.

Ageing plumbing in multi-occupancy buildings

Many Seven Sisters properties near Bruce Grove and St Ann's were converted into flats with plumbing runs added piecemeal over the years, mixing old lead or copper pipework with newer push-fit fittings. Hidden joints behind boxing or under floorboards can fail gradually, and because several households share risers, tracing the source of a leak often requires checking more than one flat.

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 Seven Sisters?

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

Frequently asked questions

How much does leak detection in Seven Sisters 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.

More help in Seven Sisters

Damp and mould survey

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

Structural drying

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

Mould removal

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