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Norwood · SE19, SE25, SE27

Mould Removal & Treatment in Norwood

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

Last updated 19 September 2026

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

Norwood's housing runs from large Victorian and Edwardian villas around Beulah Hill and West Norwood, many now split into flats, through to dense terraced streets and post-war council blocks around South Norwood and Selhurst. Solid brick walls, converted lofts, and poorly ventilated bathrooms in subdivided properties make condensation and penetrating damp a recurring cause of mould across the area.

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 Norwood we cover

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

Common causes of mould in Norwood homes

Solid-wall Victorian terraces and villas

Many West Norwood and Upper Norwood properties were built with solid brick walls and no cavity, so they rely on breathable finishes and clear airflow to stay dry. Old pointing, worn render or blocked chimneys let moisture track through the wall, and once it reaches the inside surface, black mould develops on chimney breasts, ceilings and cold external corners, especially in north-facing rooms.

Converted flats and HMOs with limited ventilation

A large share of Norwood's Victorian stock has been divided into flats and shared houses, often with bathrooms and kitchens fitted without adequate extraction. Cooking, showering and drying washing indoors push moisture into the air with nowhere to escape, and it settles as condensation on window reveals, behind wardrobes and in bedroom corners, feeding mould growth that keeps returning until ventilation is addressed.

Post-war flats and maisonettes around South Norwood and Selhurst

The council and ex-council blocks around South Norwood and Selhurst often have concrete construction, flat roof sections and older single-glazed windows that create cold bridging at lintels and window reveals. Past roof or plumbing leaks in these buildings can leave hidden damp within floors and stud walls, and mould reappears on ceilings and behind furniture even after surface cleaning unless the original moisture source is 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 Norwood?

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

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Frequently asked questions

How much does mould removal in Norwood 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 Norwood

Damp and mould survey

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

Leak detection

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

Structural drying

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