Condensation and moisture problems at home

‘Prevention is better than cure’

Energy advisor Julian shares some advice on how condensation and damp problems can occur in your home, and the best ways to deal with them.



Homes are built to prevent rain penetrating inside and to reduce losing heat to the outside. However, having well sealed and insulated homes can also stop moisture escaping outside.

Every day at home you generate lots of moisture in various ways – when cooking, bathing and showering, and washing and drying clothes, even when breathing out. If this moisture cannot escape, it can cause problems for you inside your home. Damp air can worsen breathing problems, such as asthma. Moisture will also condense on cold surfaces in the home, such as walls, ceilings and windows. In certain conditions, excessive moisture can cause mould to form and grow on cold surfaces, which is unhealthy for you.



Firstly, you can reduce the amount of moisture you generate:

  • When cooking, keep lids on pans
  • Vent tumble driers to the outside of the home
  • Remove condensation from windows using a cloth
  • If necessary, remove excess moisture from your home using a dehumidifier


It is also important to ensure there is sufficient ventilation in your home:

  • Keep air bricks in walls clear of being blocked
  • Ensure that you keep your window trickle vents open
  • During cooking, open windows, close the kitchen door and turn on the extract fan
  • During baths and showers, turn on the extract fan
  • After baths and showers, close the door and open windows

Adequate heating will also help prevent condensation. It is advisable to maintain at least a minimum level of heating in rooms that are not occupied. It is also good to have sufficient insulation installed at home. This helps retain heat, keeps surfaces warmer and so prevents condensation happening.



Remember, Cosy Kingdom is here to help. For advice on reducing condensation and damp in your home, book a home energy advice visit. Our advisors can help you prevent moisture problems, as well as improving heating and ventilation in your home.