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Speak to a Specialist
Hampstead · NW3, NW5, NW6

Leak Detection in Hampstead

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

Hampstead's housing stock ranges from grand Victorian and Edwardian villas around Frognal and the Village to converted mansion blocks in Swiss Cottage and Belsize Park, plus numerous basement conversions and rear extensions. This mix of ageing brickwork, subdivided flats and modern additions bolted onto period structures creates multiple points where hidden water can enter or travel undetected between floors.

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 Hampstead we cover

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

Common leaks in Hampstead homes

Flats converted from period houses

Many Hampstead houses around Frognal, South End Green and Belsize Park were split into flats decades ago, often with bathrooms stacked directly above neighbouring units. Failed shower trays, cracked tanking or old waste pipework can let water travel through joists and ceilings largely unseen, surfacing as staining or a damp patch in the flat below long after the leak began.

Flat roof extensions and rear additions

Rear kitchen extensions and loft additions are common across Hampstead's Victorian terraces and semi-detached houses, and many rely on flat roofs with felt, asphalt or GRP coverings. Once these membranes age, crack or come away at the joints, rainwater can seep into ceiling voids and wall cavities for months before a ceiling stain or musty smell gives away the problem.

Basement conversions and perished seals

Basement and lower-ground-floor conversions are widespread in Hampstead's larger period properties, adding bathrooms, plant rooms and tanked living space below original foundations. Perished door and window seals, ageing pipe collars and worn tanking membranes in these spaces allow gradual escape of water into surrounding masonry, often going unnoticed until skirting boards, plaster or flooring begin to fail.

What our customers say

Excellent
Rated 5.0 / 5 based on 19 reviews on

Was lovely working with the team and they did a fantastic and quick job to get all the mould out of my bathroom. Very much looking forward to working with them on other projects around my house!! Thank you for everything and shout out to Karim for being so sweet!

Mariama✓ a month ago

Omg what brilliant service, excellent the cleaner did a very good job was efficient he took his time and cleaned everything, highly recommend S. Bessim…

Susan Bessim✓ 2 months ago

Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!

Patryk Gutowski✓ 2 months ago

Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.

Keiryn Raf✓ 3 months ago

Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)

Joeie Rouse✓ 5 months ago
See all reviews on 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 Hampstead?

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

Frequently asked questions

How much does leak detection in Hampstead 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 Hampstead

Damp and mould survey

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

Structural drying

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

Mould removal

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