Green bottle with condensated window

Condensation on windows is something that most of us notice but have no idea how idea it got there. Although small amounts aren’t a problem, too much of it, however, can be. This is because excess condensation can lead to mould formation in the short term and structural damage in the long run. So to give you an idea of why it occurs and how you can reduce the amount on your double glazing, we’ve listed our top tips for reducing condensation in double glazing.

What is condensation?

Condensation is the droplets of water that form on a window when humid air comes into contact with a cold surface. Therefore, the less moisture there is inside your home, the less chance condensation has of forming.

1. Open up your windows and ventilate your home

One of the easiest ways of reducing excessive moisture from your house is by opening your windows for at least 20 minutes per day but preferably for longer. If your windows are fitted with trickle vents, you could use these instead.

2. Dry any washing outside (if possible)

Clothes that have just been washed are rich with moisture that is able to make its way onto your double glazing. Don’t allow it to settle by always drying clothes outside your home. If drying them outside is not possible, however, make sure to dry washing in a well-ventilated area of the house instead.

3. Use an extractor fan when cooking, showering or bathing

In all likelihood, most of us will already have noticed that these activities add considerable amounts of moisture into the air, which eventually finds its way onto your windows. However, an extractor fan can remove excessive moisture before it has a chance to accumulate. If you don’t have an extractor fan present in your kitchen or bathroom, make sure your open up some windows instead.

4. Keep your property at a reasonable and consistent temperature

Maintaining a reasonable temperature in your home will prevent your windows from cooling to their dew point. This is important because condensation will begin to form on any surfaces that have cooled to this temperature.

5. Reduce the number of plants in your home

Whilst plants can be pleasant to look at, did you know that they are a significant source of water vapour? If you have lots of plants in your home and condensation on your windows, remove some of the plants and the condensation will follow.

But what about condensation between double glazing?

Condensation that has formed between the two panes of glass, however, is a different story altogether. If this is the case, it usually indicates that there is a problem with the seal. To rectify this, you will need to either replace the faulty unit, have a specialist company repair each unit or attempt to fix it yourself.


However, if you have old windows, chances are a replacement seal or two won’t keep condensation out for long. Therefore, you’d actually be better off replacing the windows. If you do require replacement windows for your home, we can help. We provide high-performance windows in a range of styles, including casements, vertical sliders, and tilt & turn windows. Give us a call on 01254 690009 or contact us online and enlist the services of one of Lancashire’s leading double glazing installers today.

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