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Balham · SW12, SW17

Mould Removal & Treatment in Balham

Professional mould removal across Balham, 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 Balham homeowners, landlords & property managers
Quick answer: Damp & Mould Solutions UK removes and treats black mould at properties in Balham, 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 at £450. Call 020 3051 8478.

Leak to dry to treated, one company in Balham

Balham's housing is dominated by Victorian and Edwardian terraces, many split into flat conversions, alongside mansion blocks near the high road and post-war infill. Solid brick walls, original single-glazed sashes and converted bathrooms without external windows are common, and lower-ground and basement flats sit close to the water table. This mix leaves many homes prone to condensation, penetrating damp and slow-drying leaks, all of which encourage mould growth.

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 Balham we cover

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

Common causes of mould in Balham homes

Converted flats with poor ventilation

Many Balham terraces were split into flats decades ago, often leaving bathrooms and kitchens without an external window or working extractor fan. Steam has nowhere to escape, so it settles on cold plaster and tile grout. In upper-floor conversions this shows up as black speckling around shower enclosures and ceiling corners, worsened where landlords have blocked airbricks or sealed original vents during refurbishment.

Solid-wall Victorian terraces and cold bridging

The solid brick walls typical of Balham's Victorian stock have no cavity, so heat escapes quickly and internal surfaces stay cold relative to room air. Condensation forms on external walls behind wardrobes and sofas pushed against them, and around bay window reveals where original sash frames have warped. Without insulation upgrades or better air circulation, mould recurs on the same cold spots each winter.

Lower-ground and basement flats with penetrating damp

Balham has a number of lower-ground and semi-basement flats, particularly around Bedford Hill and the streets off Balham High Road, where external ground levels sit above internal floor level. Poor tanking, ageing damp-proof courses or failed pointing let moisture penetrate solid walls, feeding mould at skirting height and behind fitted furniture. Surface treatment alone fails here unless the external water ingress is actually traced and fixed.

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 Balham?

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

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Frequently asked questions

How much does mould removal in Balham 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 at £450. 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 Balham

Damp and mould survey

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

Leak detection

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

Structural drying

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