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Chelsea · SW3, SW10, SW1

Mould Removal & Treatment in Chelsea

Professional mould removal across Chelsea, 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.

★★★★★ 5.0 from 20 Google reviews · trusted by Chelsea homeowners, landlords & property managers
Quick answer: Damp & Mould Solutions UK removes and treats black mould at properties in Chelsea, and deals with the moisture driving it rather than painting over it. Mould treatment starts from £300, with a fixed price confirmed from photos or a short video before we attend. 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. If the cause of the moisture is not clear, a full damp and mould survey is a separate service, £500, or £450 when you book online and pay the deposit. Call 020 3051 8478.

Leak to dry to treated, one company in Chelsea

Chelsea's housing runs from Georgian and Victorian terraces with converted lower-ground flats to red-brick mansion blocks and riverside developments near Cheyne Walk and Chelsea Harbour. Solid brick walls, original sash windows, basement conversions and the sheer density of period stock mean poor ventilation and rising or penetrating damp are common, both drivers of persistent black 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 Chelsea we cover

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

Common causes of mould in Chelsea homes

Basement and lower-ground flat conversions

Many Chelsea terraces on streets such as World's End and off the King's Road have been divided into basement or lower-ground flats. These sit below street level with limited airflow and are prone to rising damp through solid brick footings and old tanking. Once moisture gets trapped, black mould spreads across skirting boards, behind wardrobes and along external walls within weeks.

Mansion block bathrooms and kitchens

Chelsea's red-brick mansion blocks near Sloane Square and Brompton often have internal bathrooms with no external window, relying solely on extractor fans that are undersized or poorly maintained. Steam from daily use has nowhere to escape, condensing on cold tiled walls and ceiling corners. Left untreated, this produces recurring black spot mould that returns quickly after routine cleaning.

Sash windows and solid-wall heat loss

Original single-glazed sash windows are common across Chelsea's period properties near Cheyne Walk and Royal Hospital Chelsea. Their frames and reveals cool rapidly, creating cold bridges where warm indoor air condenses overnight. Combined with solid brick walls that lack cavity insulation, this produces persistent surface mould around window frames, in bedroom corners and behind furniture pushed against external walls.

What our customers say

Excellent
Rated 5.0 / 5 based on 20 reviews on
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 Chelsea?

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

Book online

Frequently asked questions

How much does mould removal in Chelsea cost?
Mould treatment starts from £300, with a fixed price confirmed from photos or a short video before we attend. If the cause of the moisture is not clear, a full damp and mould survey is a separate service, £500, or £450 when you book online and pay the deposit. 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.

More help in Chelsea

Damp and mould survey

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

Leak detection

Trace a hidden water leak in Chelsea using thermal, acoustic and tracer gas methods, with minimal damage. Leak detection in Chelsea →

Structural drying

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

See what you get before you book: read a real survey report from start to finish.