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Leatherhead · KT22

Mould Removal & Treatment in Leatherhead

Professional mould removal across Leatherhead, treating black mould at the source. We find why the mould is there, condensation, penetrating damp or a hidden leak, then treat it and fix the cause so it does not come back.

★★★★★ 4.9 from 18 Google reviews · trusted by Leatherhead homeowners, landlords & property managers
Quick answer: If you have black mould at a property in Leatherhead, we remove it properly and deal with the moisture driving it, rather than painting over it. 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. We start with a damp and mould survey (£500) to find the cause, then treat the mould and fix the source. Call 020 3051 8478.

Leak to dry to treated, one company in Leatherhead

Leatherhead's housing runs from solid-walled Victorian and Edwardian terraces around the town centre to 1930s semis on the Fetcham and Ashtead fringes, with older cottages near Mickleham and newer builds around Randalls Park. Solid brick, retrofitted glazing and the town's low-lying position near the River Mole all combine to trap moisture and encourage mould.

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 →

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 →

Areas of Leatherhead we cover

We treat mould right across Leatherhead and its neighbourhoods, including:

Common causes of mould in Leatherhead homes

Solid-wall Victorian and Edwardian terraces

Many terraces near Leatherhead town centre were built without cavity walls, so moisture migrates through solid brickwork whenever pointing or render fails. This shows up as black mould on chimney breasts, in alcoves and along external walls, particularly in bedrooms and behind furniture pushed too close to cold masonry, and it keeps returning until the brickwork itself is repaired.

1930s semis with retrofitted double glazing

The semi-detached streets around Fetcham and Ashtead were built with airbricks and open chimneys that later double glazing and cavity insulation sealed up, cutting ventilation while moisture output stayed the same. Condensation now collects on cold bedroom walls, in bathrooms and around window reveals, feeding black mould that spreads behind wardrobes and headboards if airflow is not restored.

Low-lying properties near the River Mole

Homes around Randalls Park, Thorncroft and other low ground near the River Mole sit on a high water table and have a history of surface water and flooding. Past inundation or slow-draining ground pushes penetrating and rising damp into ground-floor walls, leaving persistent black mould that resurfaces after decorating unless the underlying moisture source is properly traced and fixed.

What our customers say

★★★★★

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, via Google

★★★★★

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, via Google

★★★★★

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

Tip: Wiping mould off with bleach and repainting hides it for a few weeks, then it returns. Mould is a moisture problem, so unless the condensation, damp or leak feeding it is fixed, it always comes back.

Mould problem in Leatherhead?

Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across Leatherhead.

Frequently asked questions

How much does mould removal in Leatherhead cost?
It depends on the cause and extent. We start with a damp and mould survey at £500 to find the moisture source, then quote the treatment. Treating the surface without the source means the mould returns.
Is black mould in my home dangerous?
Black mould affects indoor air quality and is best removed promptly. We treat the mould and fix the moisture driving it, so the problem is dealt with at the cause.
Will the mould come back after treatment?
Not if the moisture source is fixed. We find and address the cause, whether condensation, penetrating damp or a leak, rather than just cleaning the surface.
Do you find what is causing the mould?
Yes. Every job starts by identifying why the mould is there, using a proper damp and mould survey, so the treatment lasts.