Why mould grows
Most household mould comes from condensation. Warm, moist air from showers, cooking, drying clothes and breathing hits a cold surface and turns to water. Corners, outside walls and areas behind furniture stay cold and damp, and mould follows.
Treat it the right way
- Don't dry-brush it, which spreads spores
- Use a fungicidal wash, following the product instructions
- Let the area dry fully
- Seal with an anti-mould primer, then repaint with a mould-resistant finish
Stop it coming back
- Open trickle vents and use extractor fans, and leave them on after showers
- Dry clothes outside or in a vented dryer where possible
- Keep furniture a few centimetres off cold outside walls
- Keep rooms evenly heated rather than very cold then very warm
When it's more than condensation
Mould at skirting level, tide marks or damp patches after rain can mean rising damp, leaks or blocked gutters. Fix the cause first. Paint won't solve it.
Our Damp-Proof Refresh
We treat, seal and repaint affected rooms with bathroom-grade paint and give you practical advice on the cause.
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Frequently asked questions
Does anti-mould paint really work?
It helps a lot, but only on a treated surface and with reasonable ventilation.
Is bleach good for mould on walls?
Bleach can lighten stains but doesn't reliably kill mould in porous surfaces. A proper fungicidal wash is better.