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Speak to a Specialist
Dollis Hill · NW2, NW10

Leak Detection in Dollis Hill

Non-destructive water leak detection across Dollis Hill, 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 Dollis Hill homeowners, landlords & property managers
Quick answer: If you have a suspected water leak at a property in Dollis Hill, 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 Dollis Hill

Dollis Hill is largely made up of 1920s and 1930s semi-detached and terraced houses built around Gladstone Park, many since extended with flat-roofed kitchens and side-return bathrooms, alongside interwar houses split into flats near Dudden Hill and Willesden Green. This mix of ageing original plumbing, bolted-on extensions and multi-occupancy conversions creates repeated opportunities for hidden leaks to develop unnoticed.

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 Dollis Hill we cover

We attend leaks right across Dollis Hill and its neighbourhoods, including:

Common leaks in Dollis Hill homes

Flat roof extensions leaking into ceilings below

Many Dollis Hill semis along streets near Gladstone Park have had rear kitchens or bathrooms extended under flat roofs, a common feature of 1930s housing stock. Felt or asphalt coverings degrade with age and weather, allowing water to track along joists before it ever shows as a stain. Owners often notice a damp patch weeks after the covering has actually failed.

Upstairs bathrooms leaking through to rooms below

Where original box rooms in Dollis Hill's semis and terraces have been converted into additional bathrooms, shower trays, waste pipes and tile grout take on more use than they were designed for. Failures at these joints send water into the floor void and down into ceilings below, often building up gradually behind plasterboard before a visible mark appears downstairs.

Perished seals and pipework in converted flats

A number of larger houses in Dollis Hill and neighbouring Willesden Green have been divided into flats, meaning older shared plumbing runs behind multiple sets of walls and floors. Perished washer seals, ageing compression joints and ill-fitting waste connections can allow a slow escape of water that affects a neighbouring flat before the leak's actual source is identified.

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 Dollis Hill?

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

Frequently asked questions

How much does leak detection in Dollis Hill 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.