Black Mould Removal
Anyone can wipe mould off a wall. The trick is stopping it coming back. We remove black mould safely and properly, then fix the damp that caused it, so it does not simply return next winter. Survey-led, with a written guarantee.
Book a Mould Survey
0300 373 7251Survey-led diagnosis with a clear, written report. No obligation.
Mould is a Symptom
Black mould is never the real problem. It is the visible result of one: too much moisture on a surface. Mould spores are in the air all the time, and they only take hold and grow where a wall, ceiling or window stays damp for long enough.
In UK homes that moisture is most often condensation, but it can also come from penetrating damp, rising damp or a hidden leak. This is why mould keeps returning to the same corner, window or wall no matter how many times it is cleaned off.
So our job is two jobs. Remove and treat the mould properly, and find and fix the moisture feeding it, which we establish with a survey. Do only the first and it comes back. Do both and it stays gone.
Black Mould and Your Health
Mould is not just unsightly. It is a recognised health risk, which is why it is worth dealing with promptly and properly.
Breathing Problems
The NHS links damp and mould to a higher risk of respiratory infections, allergies and worsened asthma, from coughing and wheezing to shortness of breath.
Those Most at Risk
Babies, children, older people and anyone with a breathing condition or weakened immune system are the most vulnerable to its effects.
Recognised in Law
The risk is taken so seriously that Awaab's Law now requires social landlords to deal with reported damp and mould within set timeframes.
Do Not Disturb It
Brushing or vacuuming dry mould throws spores into the air. Mould needs treating and removing safely, not scrubbing dry.
Damage to Your Home
Left alone, mould feeds on plaster, wallpaper and timber, so an early fix protects the fabric of the property as well as your health.
Peace of Mind
A proper survey tells you exactly what you are dealing with and how to make the home healthy again, with no guesswork.
Why Bleach Does Not Work
Reaching for the bleach is most people's first move, and on a bathroom tile it has its place. But on a painted wall, plaster or wood, bleach only removes the dark stain. The mould's roots, fine threads called hyphae, run into the surface and survive underneath.
Worse, bleach adds water to a surface that already has a moisture problem, which can feed the very regrowth you are trying to stop. The wall looks clean for a few weeks, then the mould is back in exactly the same spot. Painting over it only hides it for a while longer.
The honest version: if the mould keeps coming back, the answer is not a stronger cleaner. It is fixing the damp underneath it.
Common Places Mould Grows
Mould follows damp and still air. We most often treat it in:
How We Remove Mould
Survey and find the cause
We confirm what is feeding the mould, condensation, penetrating or rising damp or a leak, with moisture readings and where useful thermal imaging. The cause sets the whole plan.
Protect and contain
We work cleanly and safely so spores are not spread through the home during removal, protecting the rest of the property and the people in it.
Treat and remove the mould
The mould is treated with proper fungicidal products that reach into the surface, not just wiped. Badly contaminated plaster is removed and made good where needed.
Protect the surface
Treated areas are protected to resist regrowth, giving the repair the best chance of staying clean.
Fix the cause
The step most people skip. We resolve the moisture, usually through ventilation such as a PIV unit or by fixing a damp problem, so the mould has nothing to grow on.
Written guarantee
Installed work is backed by a written guarantee, for lasting peace of mind.
DIY or Call a Specialist?
A small patch can be a DIY job done safely. Beyond that, it is worth getting it diagnosed and done properly.
What Our Customers Say
Genuine reviews from Advanced Damp customers.
"Lionel came to survey our flat. He couldn't have been pleasanter or more professional. He explained all his findings and we're hoping we're now on the way to resolving our mould problems."
"Lionel was brilliant. Expert, efficient and extremely helpful in answering our various queries."
"Amazing service, we were made to feel very confident as everything was explained to us clearly. Lionel was really thorough and the turnaround of the report was super speedy, on the day!"
Related Services
Mould removal works best alongside the services that tackle the damp behind it:
Mould Removal FAQs
Is black mould dangerous to health?
Does bleach kill mould?
Why does my mould keep coming back?
Can I remove mould myself?
What causes black mould?
How do you remove mould permanently?
Get Rid of Black Mould for Good
Book a survey and get a clear, written diagnosis of what is causing your mould and how to remove it for good, with honest advice and no scare tactics.
Last updated June 2026 · Advanced Damp Ltd · Black mould removal nationwide · 0300 373 7251