Avoiding condensation and dealing with mould

You are responsible for treating mould which has been caused by condensation.

Treating mould

First treat the mould already in your home, then deal with the basic problem of condensation to stop mould appearing.

To kill and remove mould:

  1. Wipe down or spray walls and window frames with a fungicidal wash that carries a Health and Safety Executive (HSE) approval number. Make sure you follow the instructions for its safe use. These fungicidal washes are often available at local supermarkets and DIY stores.

  2. Dry clean mildewed clothes, and shampoo carpets. Do not try to remove mould by using a brush or vacuum.

  3. After treatment, redecorate using good quality anti-fungicidal paint and an anti-fungicidal resistant wallpaper paste to prevent mould reoccurring. (The effect of anti-fungicidal or anti-condensation paint is destroyed if covered with ordinary paint or wallpaper.)


Avoiding condensation

Condensation is formed when the moisture in the air becomes water on the surfaces in your home. There are some simple ways to help prevent condensation forming:

  1. Reduce the amount of moisture in your home – avoid drying your washing indoors and make sure you use your extractor fans when cooking or showering. Keep kitchen and bathroom doors closed to prevent moisture escaping into the rest of your house.

  2. Improve ventilation – fresh air will help stop moisture collecting in your home. Open your windows for a short while every day to help the air circulate.

  3. Reduce the number of cold areas in your home – moisture forms when warm air meets a cold surface. Heating one room to a high temperature and leaving other rooms cold makes condensation worse. It’s better to have a medium-to-low level of heat throughout the house.

  4. Heat your home to the right temperature - use your room stat to maintain a temperature no less than 12 degrees and no higher than 21 degrees.

  5. Wipe condensation away as soon as it forms – check your windows for moisture every morning.

  6. Never overfill rooms, wardrobes and cupboards, as it restricts air circulation. Keep a small gap between large pieces of furniture against internal walls and try not to place large furniture against external walls.


If you have followed all of this advice for the last six weeks and there is still a problem, please call our Repairs Centre on 01733 385030.