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Crawley · RH10, RH11, RH6

Mould Removal & Treatment in Crawley

Professional mould removal across Crawley, 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 Crawley homeowners, landlords & property managers
Quick answer: If you have black mould at a property in Crawley, 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 Crawley

Crawley's housing stock reflects its history as a post-war New Town, with 1950s and 60s council-built estates in Northgate, Langley Green and West Green sitting alongside older Ifield village cottages and newer 1980s-90s developments in Bewbush, Broadfield and Maidenbower. This mix of construction methods, insulation standards and ventilation provision means mould causes arise differently across the borough, from cold system-built walls to poorly ventilated modern flats.

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 Crawley we cover

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

Common causes of mould in Crawley homes

System-built New Town estates and cold bridging

Many Crawley properties in Northgate, Langley Green and West Green date from the town's original 1950s and 60s development, built with concrete panel or thin cavity walls and minimal insulation. These cold bridges attract condensation, and black mould readily forms around window reveals, in corners and along external walls in bedrooms, particularly through autumn and winter when heating patterns are inconsistent.

Flat roofs and maisonette leaks

Crawley has a high number of flat-roofed houses and low-rise maisonettes across estates such as Bewbush, Furnace Green and Gossops Green. Flat roof coverings and parapet details are prone to age-related failure, letting water penetrate ceilings and top-floor walls unnoticed for months. The resulting damp patches develop into persistent mould, often spreading into loft hatches and airing cupboards before residents identify the source.

Sealed modern homes and trapped moisture

Later estates including Maidenbower and Broadfield were built with tighter, double-glazed construction that reduces natural draughts. Without adequate trickle ventilation or extractor use, everyday moisture from cooking, bathing and drying laundry becomes trapped indoors, settling as condensation on bathroom walls, behind wardrobes and in bedroom corners where airflow is weakest, allowing mould to establish quickly.

What our customers say

★★★★★

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

★★★★★

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, 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 Crawley?

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

Frequently asked questions

How much does mould removal in Crawley 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.