There Is Condensation On My Windows – What’s The Deal?

by | Oct 22, 2020 | Windows

Now that autumn has arrived you might be noticing a few things: leaves falling off trees, pumpkin-spiced everything and steamy windows. We don’t mean the Tina Turner kind either. We mean the ‘wake up in the morning and can’t see the street for condensation’ kind.

Why is this happening?

Condensation is the liquid that forms when warm moist air meets a cold surface.  Like when a glass of cold beer mists up on a warm day.  It commonly happens in the home around autumn because it’s the time of year when the temperature drops outside and we start to crank the heating up.

Is condensation a bad thing?

This depends entirely on where the condensation is forming on the window.

Condensation on the outside of the window

Condensation forming on the outside of your window is actually a good thing.  It means that your windows are doing a great job of keeping your home well insulated.  Congratulations – you have energy-efficient windows.  The condensation will clear on its own when the outside temperature warms up and doesn’t require any further action.

Condensation on the inside of your window

Condensation forming on the inside of your window is a little more complicated.  It often means that your windows are working correctly but there is a ventilation issue in your home.  Key problem areas tend to be in high-humidity environments like the bathroom and kitchen.

Fear not, there are a few solutions to improve the ventilation in your home.  However, it is important to act early to prevent mould forming which could impact your health and home – as well as reduce the lifespan of your windows.

  • Regularly open windows to circulate air and allow moist air to escape.  Aim for a minimum of 10-15 minutes a day. 
  • Keep the temperature in your home consistent – ideally to a warm temperature.
  • Use extractor fans when cooking or showering.  Leave them running for 10-15 minutes after you have finished.
  • Reduce the moisure in your home by having your tumble dryer connected to an outside air vent, air dry clothes outside where possible and cover boiling pots whilst cooking. 
  • If you still have ventilation issues, consider a dehumidifier. 
Condensation between the glass

Unfortunately, condensation between the glass is not a good sign.  It means that your window is failing.  In fact, it usually means that the seal on the glazing unit is broken and your home is no longer insulated correctly.  It’s a common occurence when glazing systems reach the end of their lifespan.  Repairs are sometimes possible but usually the best solution is to replace your windows.  Underperforming glazing means that your home is no longer energy-efficient and your energy bills will gradually creep up – costing you more in the long-run.

If you are interested in upgrading your windows and are based within Dundee or the surrounding areas, get in touch – we’d be happy to provide you with a no-obligation quote.

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