It’s a good idea to open up those dark, damp areas of your garden, especially under and around windows and doors. Clear away trees that create too much shade; trim overhanging branches and tidy up shrubs and creepers that reduce the light entering your home. This will help reduce the number of mould spores that drift indoors. You may also choose to:
1. Improve drainage and fix leaking taps.
2. Rake up damp leaves and make them into compost.
3. Avoid using mulch that has a musty smell (the smell is the result of chemical vapours given off by mould).