Why Do Double Glazing Get Misted?

Apr 11, 2025 | Fixaglaze Explains...

What Do Misted Double Glazed Units Look Like?

You can tell that your double-glazed unit is misted by looking for signs of condensation between the panes of glass. These spots of moisture or patches of misting occur in between the two windowpanes.

Why Does This Happen?

To understand why misted, failed double glazing happens, we must think about the structure of the window. There are two panes of glass with a void in the middle. The void helps to trap a layer of gas (Argon) which helps to keep heat in your home and cold air out.

When manufacturers make new windows, they include desiccant in between the seals. This is designed to absorb any moisture that makes its way between the panes. Over time, this will lose its effectiveness, which means that any moisture in between the panes will start to become visible.

How Does a Misted Window Affect My Energy Bills?

Replacing the double-glazed unit will keep the heat in your home and cold air out. This will help reduce your energy bills and make your property more energy efficient.

With energy bills on the rise, everyone is looking for simple steps they can take to improve the efficiency of their homes and save money.

Other Benefits

  • Getting rid of misted condensation panes will help boost the value of your property. Trying to sell your home with misted failed units is likely to damage the asking price.
  • You’ll improve the view from your home if you address problems with window condensation. You might not realise how much this affects your mood, but having a clear view of the outside can be a real mood booster, particularly on brighter days.

At Fixaglaze, our talented team of double-glazing installation and repair specialists have received comprehensive training and extensive industry experience. They have the skills and knowledge required to fit your unit to an exceptional standard, which will last you for many years to come.

If you would like to find out more about our range of double-glazing services, please call our team today on 0115 8377229.