Best Anti-Mould Paints
Anti-mould paint is a useful finishing step once you have cleaned a mouldy wall or ceiling — it helps stop mould taking hold again on the surface you have treated. What it is not is a cure for damp. If you simply paint over mould without fixing the moisture behind it, the mould will come back through.
So think of anti-mould paint as the last stage of a proper job: treat the existing mould, fix or reduce the moisture source, let the surface dry, then repaint with a mould-resistant emulsion. On cold walls prone to condensation, an anti-condensation thermal paint can help too.
QUICK ANSWER
Anti-mould paint helps stop mould regrowing on walls and ceilings you have already cleaned — it is a finishing step, not a cure for damp. Treat existing mould and reduce the moisture first, then repaint with a mould-resistant emulsion. For cold, condensation-prone walls, an anti-condensation thermal paint also helps.
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Who this guide is for
Renters and owners who have cleaned off mould and want to help stop it returning on the treated wall or ceiling.
Our picks at a glance
| Pick | Best for |
|---|---|
| Dryzone Anti-Mould Paint (1L) | A quality mould-resistant finish |
| Polar Anti-Mould Paint (1L) | Covering a wall on a budget |
| Rempro Anti-Condensation Thermal Paint | Cold walls where condensation forms |
Our picks in detail
BEST OVERALL — Dryzone Anti-Mould Paint (1L)
Best for: A quality mould-resistant finish
From a specialist damp brand, this white emulsion contains a fungicide to help resist mould regrowth on treated walls and ceilings, with a standard matt finish.
Pros: Reputable damp brand, matt finish, mould-resistant.
Cons: Only helps if you fix the underlying moisture.
BEST VALUE — Polar Anti-Mould Paint (1L)
Best for: Covering a wall on a budget
A popular, affordable brilliant-white anti-mould emulsion that resists mould for several years on properly prepared surfaces.
Pros: Good value, easy to apply, long mould-resistance.
Cons: Basic colour range; not a damp cure.
BEST FOR COLD WALLS — Rempro Anti-Condensation Thermal Paint
Best for: Cold walls where condensation forms
A thermal/anti-condensation paint that helps keep the wall surface a little warmer, reducing the condensation that feeds mould on cold external walls.
Pros: Targets cold-wall condensation, pairs with emulsion.
Cons: Helps with condensation, not rising or penetrating damp.
Prices and availability on Amazon are accurate as of the date of publication and are subject to change.
How to choose
- Treat mould first: clean or treat existing mould and let the surface dry — never paint straight over live mould.
- Fix the moisture: reduce humidity, ventilate, and address any leak or cold bridge, or the mould returns.
- Coverage: check the m² per litre and buy enough for two coats.
- Finish: most are matt white; check if a tintable option is needed.
- Cold walls: consider anti-condensation thermal paint on external-facing walls.
- Ventilate while painting and afterwards to help it cure and keep humidity down.
Common questions
Does anti-mould paint actually work?
It works as intended — helping to resist mould regrowth on a treated surface — but only if you have removed the existing mould and reduced the moisture that caused it. On its own it will not cure a damp problem.
Can I paint over mould?
No. Painting over live mould traps it and it will grow back through the paint. Clean or treat the mould first, let the wall dry, then apply anti-mould paint.
How long does anti-mould paint last?
Many are rated to resist mould for around five years on properly prepared, dry surfaces — but that depends on keeping humidity and condensation under control in the room.
Our recommendation
Once you have treated the mould and reduced the moisture, a Dryzone or Polar anti-mould emulsion is a solid finish. On cold, condensation-prone external walls, add an anti-condensation thermal paint to tackle the surface temperature too.
