How To Reduce Humidity In Your Bathroom

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Of course, the bathroom is likely to be the room in your house that is most prone to excess moisture and humidity and this can lead to problems with damp, mould and mildew.

The build up of warm air, especially in the colder winter months, can be tricky to manage but is something you should be mindful of if you want to avoid a build up of associated problems.

Depending on the design of your bathroom, how modern it is, its position in the house and how well it is ventilated, a build up of humidity can be a minor or a major problem. There are a number of signs that humidity is building up in your bathroom, and if you spot any number of them you should assess the cause and see what you can do to prevent it. 

You might notice excess condensation on the windows and mirrors that is slow to clear. There could be dark mould beginning to grow around the window frames, in the corners of your bath/shower or on the tile grouting. Take notice of the walls as well, is the paint or plaster flaking at all? If you have wallpaper, is it peeling away at the corners? You should also look out for for damp patches.

So what do you need to do to reduce humidity and associated damp problems? The key factors are: to increase the temperature in your bathroom, to extract humid air as much as possible and to reduce the overall moisture levels.


If the surface temperature in your bathroom is higher, as there will be fewer cold surfaces for the warm air to hit and condense upon, causing condensation and lingering moisture. Options for efficient bathroom heating include a heated towel rail, a traditional radiator or, if you have the budget, under floor heating is a great option. You can read one of our articles on bathroom heating options here. Insulation is another factor here, so if you haven’t already got double-glazing in the bathroom, you should definitely consider it for more effective heat retention.


Good ventilation is absolutely key for reducing humidity in the bathroom, but it isn’t always easy to get it right. If you are unlucky and don’t have any windows in your bathroom, then a good quality extractor fan should be installed to extract the excess warm air after you are finished with the bathroom. You should leave it running for approximately half an hour after you finish in the shower, as well as leaving the door open and a window if possible – essentially, anything you can do to let warm air escape! We have a range of extractor fans on our site which will look stylish whilst keeping humidity at bay.

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