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Hanworth · TW13

Mould Removal & Treatment in Hanworth

Professional mould removal across Hanworth, 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 Hanworth homeowners, landlords & property managers

Last updated 19 September 2026

Quick answer: Damp & Mould Solutions UK removes and treats black mould at properties in Hanworth, 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 Hanworth

Hanworth's housing stock is dominated by mid-20th-century council-built semis and terraces, including a good number of non-traditional steel-framed BISF houses put up after the war, alongside 1930s bay-fronted semis and later infill flats near Hanworth Park. Many retain original solid or early cavity walls and modest loft insulation, so condensation and mould take hold readily once ventilation or heating falls short.

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 Hanworth we cover

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

Common causes of mould in Hanworth homes

Steel-framed BISF houses and cold bridging

A number of Hanworth's post-war council homes are steel-framed BISF construction rather than traditional brick. The metal frame conducts cold through the structure, creating cold bridges at wall junctions and around window reveals. Warm, moist household air condenses on these colder internal surfaces, and black mould commonly develops in bedroom corners and along external walls behind headboards and wardrobes.

1930s bay-fronted semis with penetrating damp

Hanworth has streets of inter-war semis with shallow brick bay windows and solid or early cavity walls. Worn pointing, ageing window seals and cracked render let rain track through the masonry, showing up as damp patches and mould around window frames and ceiling corners above bays. Left untreated, the moisture spreads along timber lintels and plasterboard, encouraging mould growth well beyond the original point of entry.

Ex-council flats and maisonettes with weak ventilation

Many of Hanworth's flats and maisonettes, converted or purpose-built in the post-war decades, rely on small or ageing bathroom extractor fans that struggle to clear steam and cooking moisture quickly enough. Combined with double glazing that has reduced natural draughts, humidity builds up and settles as black mould on bathroom ceilings, around kitchen extractors and on external bedroom walls behind furniture pushed too close to the wall.

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 Hanworth?

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

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Frequently asked questions

How much does mould removal in Hanworth 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 Hanworth

Damp and mould survey

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

Leak detection

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

Structural drying

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