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Eltham · SE9, SE12

Mould Removal & Treatment in Eltham

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

Last updated 19 September 2026

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

Eltham's housing spans Edwardian terraces, the Grade II listed Progress Estate cottages at Well Hall, 1930s bay-fronted semis and postwar council flats and maisonettes. Many solid-wall properties retain original single glazing and chimney breasts, while flats often lack trickle vents. This mix of ageing fabric and limited ventilation traps moisture, encouraging condensation and mould on walls, ceilings and behind furniture.

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 Eltham we cover

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

Common causes of mould in Eltham homes

Solid-Wall Cottages at Well Hall and the Progress Estate

The Grade II listed Progress Estate cottages around Well Hall were built with solid brick or render walls and no cavity for insulation. Heritage restrictions limit external changes, so condensation forms readily on cold internal wall surfaces and around timber window frames. Left untreated, black mould spreads across bedroom corners and ceilings, and any past roof or render leak worsens the problem.

Bay Windows and Chimney Breasts in Eltham's 1930s Semis

Many of Eltham's semi-detached houses off Westmount Road and Eltham Park feature bay windows and old chimney breasts prone to penetrating damp where pointing has failed. Cold spots around these features attract condensation, and disused flues trap moisture inside the wall, feeding mould growth behind wardrobes and beds pushed against external walls. Bathrooms retrofitted without extractor fans compound the issue.

Ventilation Gaps in Eltham's Postwar Flats and Maisonettes

Concrete and brick maisonette blocks built after the war around Middle Park and Coldharbour rely on window trickle vents that are often painted shut or missing entirely. Cooking and drying washing indoors raises humidity with nowhere to escape, so condensation collects on north-facing walls and ceilings. Mould then takes hold in bathrooms, behind kitchen units and in bedroom corners furthest from any heat source.

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 Eltham?

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

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Frequently asked questions

How much does mould removal in Eltham 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 Eltham

Damp and mould survey

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

Leak detection

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

Structural drying

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