When the air gets warmer, cooler surfaces in your home retain some water and release moisture – this leads to condensation and mould. This is often mistaken for damp.

Spot the signs of condensation

  • Mirrors and windows steam up.
  • Furnishings feel damp.
  • Moist walls.
  • Black spots of mould appear on outside-facing walls.

Know the cause of condensation

  • Poor ventilation.
  • Cold surfaces.
  • High amounts of water vapour from cooking, bath, tumble dryer, etc.

Reducing condensation

  • Have medium/low heat through the house. Heating one room to a high level and leaving others cold makes condensation worse in unheated rooms.
  • Keep your central heating on longer, allowing rooms to stay warmer longer.
  • If you don’t have heating in every room, keep unheated rooms open to let heat in. Don’t use paraffin or liquid gas heaters.


  • Leave a gap between furniture and external walls.
  • Open a window when boiling a pan or a kettle, running a bath or using a tumble dryer.
  • Keep lids on boiling pans.
  • Don’t dry clothes on radiators.
  • Don’t over-ventilate when it’s cold.
  • ‘Cross ventilate’ your home by opening a small window downstairs and another upstairs on the opposite side. Make sure you close them when you leave.
  • Open internal room doors so that drier air can circulate.
  • Keep bathroom and kitchen doors closed when cooking or bathing.

Top Tips

  • Treat black mould immediately. Mould can easily be wiped away.
  • Mould and mildew spray can be bought from most supermarkets.

If you have tried all of the above tips and you are still experiencing problems, please complete the form below, or call us on 01282 686300 for further advice.

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