What the evidence says
Indoor mould and damp are associated with respiratory symptoms, asthma development and worsening, and respiratory infections. Children, older people and anyone with an existing respiratory condition are most at risk. The World Health Organization guidance is clear that persistent dampness should be remedied, not just cleaned.
What to do today
- Ventilate: open windows and trickle vents, use extractors.
- Clean small areas with a fungicidal wash; wear gloves and a mask.
- Move beds and furniture away from affected walls.
- Do not paint over mould.
When it is urgent
Mould in a bedroom used by a child, an older person or someone with asthma is a significant hazard and should be investigated within days, not weeks.
What Damp Check adds
An urgency rating, the cause, free steps and a fix package — and for landlords, the record you need.
General information for England, not advice on your property. Rules change; we check the current position in every report.