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Waterloo · SE1

Mould Removal & Treatment in Waterloo

Professional mould removal across Waterloo, 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.

★★★★★ 4.9 from 18 Google reviews · trusted by Waterloo homeowners, landlords & property managers
Quick answer: If you have black mould at a property in Waterloo, we remove it properly and deal with the moisture driving it, rather than painting over it. 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. We start with a damp and mould survey (£500) to find the cause, then treat the mould and fix the source. Call 020 3051 8478.

Leak to dry to treated, one company in Waterloo

Waterloo mixes Victorian terraces around Roupell Street and The Cut, mid-century council blocks in Lambeth and Southwark, and glass-fronted riverside apartments near South Bank. Solid brick walls with no cavity, concrete-framed estates with cold bridging, and airtight new-build flats each trap moisture differently, giving mould a foothold across almost every property type in 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 Waterloo we cover

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

Common causes of mould in Waterloo homes

Victorian terraces around Roupell Street and The Cut

These solid brick terraces have no cavity wall to stop moisture reaching the inside face, so penetrating damp from worn pointing, cracked render or leaking gutters shows up as mould on external walls, behind wardrobes and in corners of bedrooms. Original sash windows and thin lath and plaster ceilings add to the problem, and once damp gets into the brickwork it keeps feeding mould growth long after any redecoration.

Post-war council blocks in Lambeth and Southwark

Many mid-rise estates near Kennington and Elephant and Castle were built with concrete floor slabs that run straight through external walls, creating cold bridges at window reveals and corners. Combined with extractor fans that are undersized or broken, this produces persistent black mould in bathrooms, on bedroom walls facing outside and around window frames, particularly in flats with limited cross-ventilation between rooms.

Riverside conversions and new-build flats near South Bank

Warehouse conversions and modern apartments close to the river are built tight for energy efficiency, but that same airtightness traps everyday moisture from cooking, showering and drying clothes indoors. Without adequate mechanical ventilation, condensation forms on cold glazing and behind furniture pushed against external walls, leading to surface mould that returns quickly after cleaning unless the underlying ventilation and moisture source is properly addressed.

What our customers say

★★★★★

Omg what brilliant service, excellent the cleaner did a very good job was efficient he took his time and cleaned everything, highly recommend S. Bessim…

Susan Bessim, via Google

★★★★★

Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!

Patryk Gutowski, via Google

★★★★★

Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.

Keiryn Raf, via Google

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 Waterloo?

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

Frequently asked questions

How much does mould removal in Waterloo cost?
It depends on the cause and extent. We start with a damp and mould survey at £500 to find the moisture source, then quote the treatment. 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.