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What to do about condensation

Condensation is a problem that commonly affects warm, wet rooms like kitchens and bathrooms. Left untreated it can lead to mould, which can cause health problems.

There are plenty of things you can do to remove or reduce condensation.
 

Avoiding condensation in the home

If you think you have condensation in your home there are a number of practical steps you can take:

Kitchen

  • Keep lids on pans
  • Open windows slightly when cooking
  • If you have a tumble dryer, ventilate it outside
  • Keep the kitchen door closed when cooking
  • Don't let kettles and pans boil longer than necessary
  • If you have an extractor fan, use it when cooking.

Bathroom

  • If it's cold, heat the room before taking a bath or shower
  • Open a window afterwards
  • Pour an inch of cold water into the bath before adding hot water
  • If the bathroom has no window, make sure your extractor fan is working. If it isn't, report it to the Customer Service Centre.

Around the home

  • Keep your home as warm as you can afford to help reduce condensation
  • It's best to have the heating on for longer periods at a lower temperature. Try adjusting your thermostat if you have one
  • Insulate - use draught excluders if possible
  • Avoid putting furniture in front of radiators
  • Don't block air vents.
     

If you have mould in your home

Mould caused by condensation can cause or aggravate health problems. If you find mould in your home you should take the following steps: 

  • Wash mould off walls and other surfaces using a one-part bleach, four-parts water solution
  • More stubborn mould can be killed with a fungicidal wash, which is available from most supermarkets
  • Be careful when disturbing mould by brushing or vacuum cleaning, as this can aggravate respiratory problems
  • Wash or dry-clean any affected clothes and shampoo affected carpets.  Ensure everything is thoroughly dry afterwards, or the mould could reappear
  • After treatment, redecorate using a good fungicidal paint to prevent mould recurring.