Book onlineSpeak to a Specialist
Speak to a SpecialistBook online
Lewisham · SE13, SE4, SE6, SE12, SE14

Mould Removal & Treatment in Lewisham

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

Last updated 19 September 2026

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

Lewisham's housing runs from Victorian and Edwardian terraces in Brockley and Ladywell to 1930s semis in Lee and Downham, dense postwar estates, and a growing stock of converted flats and new-build blocks near Lewisham town centre. This mix of solid brick walls, older single-glazing, subdivided properties and airtight modern conversions creates varied but persistent conditions for condensation and damp to take hold.

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 Lewisham we cover

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

Common causes of mould in Lewisham homes

Solid-wall Victorian terraces and penetrating damp

Many terraces around Brockley, Ladywell and Hither Green have solid nine-inch brick walls with no cavity, ageing pointing and original single-glazed sash windows. Rainwater penetrates through worn mortar, cracked render or faulty guttering, tracking inwards to leave black mould on chimney breasts, external walls and ceilings below flat roof extensions, particularly in north-facing rooms that stay cold and slow to dry.

Converted flats and bedsits with poor ventilation

Lewisham has a high proportion of Victorian and Edwardian houses split into flats, common near New Cross and Deptford. Internal bathrooms and kitchens without windows rely on extractor fans that are often undersized, blocked or switched off to save noise, so steam has nowhere to go. Mould builds around shower enclosures, sealant, tiles and ceilings, then spreads into adjoining bedrooms through shared walls.

Postwar estates and condensation behind furniture

Ex-council low-rise blocks and estates around Downham and Bellingham often have concrete construction, thermal bridging at corners and window reveals, and limited background ventilation. Beds and wardrobes pushed against external walls trap cold, still air, so moisture condenses unseen until mould appears on plaster and fabric, a pattern that returns repeatedly unless the underlying cold spot and airflow are addressed.

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 Lewisham?

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

Book online

Frequently asked questions

How much does mould removal in Lewisham 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 Lewisham

Damp and mould survey

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

Leak detection

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

Structural drying

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