  First steps against mould First treat the mould already in your home. If you then deal with the basic problem of condensation, mould should not reappear. To kill and remove mould, wipe down walls and window frames with a fungicidal wash which carries a Health and Safety Executive ‘approval number’. Follow the manufacturers’ instructions precisely. Dry-clean mildewed clothes, and shampoo carpets. Disturbing mould by brushing or vacuum cleaning can increase the risk of respiratory problems. After treatment, redecorate using a good quality fungicidal paint to help prevent mould. Note that this paint is not effective if overlaid with ordinary paints or wallpaper. The only lasting way of avoiding severe mould is to eliminate dampness. ------------------------------------------------------------------------ Is it condensation? Condensation is not the only cause of damp.
It can also come from: * leaking pipes, wastes or overflows; * rain seeping through the roof where a tile or slate is missing, spilling from a blocked gutter, penetrating around window frames, or leaking through a cracked pipe; * rising damp due to a defective damp-course or because there is no damp-course These causes of damp often leave a ‘tidemark’. 
