We don’t just clean mould off the wall — we find what’s causing it, remove it safely to IICRC S520 standards, and make sure it stays gone.
London’s Victorian and Edwardian properties hold damp in ways modern living makes worse — cold solid walls, original sash windows and sealed-up rooms. Surface-cleaning the mould they grow leaves the moisture behind, so it always returns.
We take a different approach: diagnose the moisture source, remove the mould under proper containment, and set the property up so the conditions that fed it are gone for good.
From the first survey to long-term prevention — the full service for residential and commercial properties.
Before anything gets cleaned, we find the full extent of the problem and what is causing it. A proper survey uses thermal imaging, moisture readings and — where needed — air sampling, so remediation is targeted rather than cosmetic.
Learn more →Mould doesn't just sit on the surface — disturb it badly and you spread millions of spores through the property. We remove it the controlled way: contained, filtered, treated and verified, following IICRC S520 remediation standards.
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Mould is the symptom; moisture is the disease. Most London mould is driven by condensation in poorly ventilated period homes, but penetrating and rising damp play their part too. We identify which one you have and bring the moisture under control.
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Black mould is the one that worries people most — and for good reason. It thrives on persistent damp and can affect health, especially for children and anyone with a respiratory condition. We treat it safely and tackle why it appeared.
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Removing mould is half the job. Keeping it gone is the other half. We set your property up so the conditions mould needs — stale, humid air on cold surfaces — simply aren't there anymore.
Learn more →Every job follows the same disciplined sequence — because shortcuts are exactly why mould comes back.
1 Thermal imaging and moisture readings find every affected area and the source behind it.
2 We seal off the area under negative pressure so spores never spread to clean rooms.
3 HEPA filtration, safe removal and biocidal antimicrobials clear the mould properly.
4 We fix the moisture, improve ventilation and finish so it doesn’t come back.
Real results from properties across London — mould gone, surfaces restored, and the cause dealt with so it stays that way.
Thermal imaging and moisture mapping show us where the water really is — including the damp you can’t see behind plaster and skirting. That means we treat the actual problem, not just the patch on the wall.
Disturbing mould carelessly spreads spores through the whole property. We contain and filter the work area to IICRC S520 standards, protecting the rest of your home and the people in it while we work.
We work throughout the capital, with deep experience in its period housing stock. A few of the areas we cover:
Islington · Camden · Hackney · Westminster · Kensington & Chelsea · Haringey · Lambeth · Southwark · Wandsworth · Tower Hamlets · Lewisham · Ealing
June 2026
Black mould on a wall is almost always a moisture problem in disguise. Here's what causes it, when to worry, and how to get rid of it for good.
Read more →June 2026
Damp and mould in rented homes is now a legal priority, not a grey area. Here's what Awaab's Law means for tenants and landlords in London.
Read more →May 2026
All damp looks much the same on the wall — but the cause decides the cure. Here's how to tell condensation, penetrating and rising damp apart.
Read more →Tell us what you’re seeing and where, and we’ll come back within a working day — with advice, or a date for a free site visit and a written quote.
Just the basics — we’ll handle the rest.