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DIY and how to guides

How to prevent condensation and mould

There are a few simple things you can do to reduce condensation and mould in your home and stop it from coming back in the future.

Image: How to prevent condensation and mould

How can I prevent condensation and mould?

What is condensation?

Condensation is when moisture or water in the air collects on a cooler surface. Nearly everyone’s home has at least a little bit of condensation, like the droplets you see on your windows and mirrors after a bath or shower. 

While it’s usually nothing to worry about, condensation can sometimes lead to damp and mould growth if left for too long. Mould usually looks like a collection of little black dots growing in the corners of the windows or anywhere the water collects. This can be a trigger for people who suffer with asthma, bronchitis, sinusitis, pneumonia and even tonsillitis, so it’s really important you take action if you spot signs of mould in your home.

If your windows are getting steamy or your window ledges are wet then there’s too much moisture in the air. Here’s some tips to help you prevent condensation and mould in your home:

Step one

Set your heating to come on for a longer period but at a lower temperature; spikes in temperature from very warm to very cold create the perfect conditions for condensation to form.

Step two

Make sure you always have your extractor fans on when you’re in the shower or bath, or when you’re cooking, and keep the kitchen or bathroom doors closed too.

Step three

Wipe water away from windows to avoid mould.

Step four

Open windows when you can to let fresh air in and moist air out - especially first thing in the morning.

Step five

Dry your clothes outside, if you can - if that’s not an option then think about drying them in the bathroom or kitchen, keep the extractor on, a window open and the doors closed.

Step six

Make sure your furniture is away from radiators and external walls as this stops air moving around your home.

Step seven

Keep lids on your pans when you’re cooking to stop steam escaping.

Step eight

If you have a tumble dryer, make sure it’s ventilated outside.

Step nine

If you do get mould, use a mould cleaning product to remove it.

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