DOUble Glazing Problems

Misted Double Glazing Birmingham

Our glaziers can help with misted double glazing and blown sealed units quickly, efficiently and affordably.

Misted Up Double Glazing

If you’ve noticed your double glazing is misted up, give us a call because our experienced glaziers are on call to help customers right across Birmingham & surrounding areas.

misty double glazing units

What Causes Misted Double Glazing

Double glazing is created by sealing two panes of glass together, with a gap left between them, to form a double-glazed unit. The air held inside the window creates an insulating barrier that keeps heat in.

If the the seal on the glass should break (or fails, as its known in the industry), condensation can get into the unit which causes a misted up window. Which is also referred to as blown sealed units.

The seal can break for a number of reasons, but is mainly due to the age of the window (seals don’t last forever), how it was manufactured or even how it was fitted in the first place.

Should I Repair or Replace the Misted Double Glazing?

The simple answer to both questions is no:

Repair Misted Windows

Some companies may advocate drilling a small hole into the unit, blow in warm air to clear the condensation, and then fill the hole. While this may work for a few days or weeks, the problem will return as the seal has been broken.

Replace the window

There is no need to replace the entire window, as long as the frame is intact. You only need to replace the sealed unit and, if you upgrade to Low E glass, the insulation will be even better.

The only recommended way to permanently fix misted double glazing, is to replace the sealed unit.

This is far less expensive than a new window, and the new sealed unit will come with a warranty.

misted-up double glazing units
misted-up double glazed windows

But I have Misting on the Outside of My Window

This is not a fault with your window or with the glazed unit failing, as outlined above.

We usually see this happening in Autumn or Spring.

This is because the temperature of the glass drops to a low level overnight, with the moisture of the morning’s heavy dew condensing on the cold surface of the glass.

You’ll often see this happening more with newer windows, and Low E glass, as the windows fitted nowadays are far more efficient than those fitted a few years ago.

However, there is no need change the glass or think about replacing the window, as this is just down to the weather and actually shows that your windows are working correctly.

Customer Reviews

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Victoria Silver profile picture
Victoria Silver
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Just to say thank you so much for outstanding work and service. You've delivered exactly what we wanted and more! Your mirror has really helped improve the natural light coming into our dark living room. We like what you've done so much we'll be back in the Spring to ask you to do the same in other rooms! ⭐⭐⭐⭐⭐
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Pat Short profile picture
Pat Short
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Absolutely superb service. From quote for glass table top to delivery it was seemless. Great price, delivery on time. Would recommend Shard End Glass 100%.
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Todd Waugh Ambridge profile picture
Todd Waugh Ambridge
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Fantastic service from Shard End Glass from start to finish. Easy online system and all sorted within just over a week. Jamie and Jason turned up and had the windows sorted in about 30 minutes on the day. Cheers chaps.
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ZAB K profile picture
ZAB K
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Fantastic service and great value for money. Popped in and got glass pane cut and bubble wrapped for very cheap. Great service, would recommend for all your glass needs
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Nick Layland profile picture
Nick Layland
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Had a smashed entrance window at my workplace in Birmingham city centre, called Shard End for a replacement and Jamie and Ash were out same day, removed the damaged glass and replaced it with a new one extremely quickly. Cleaned up the new glass and cleaned up pieces from the floor. Fast and excellent service, thank you!
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A Luka
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Time to get a new van boys
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Mabs Yasin profile picture
Mabs Yasin
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Great service recently from both the office and shop floor staff, friendly and welcoming which is always nice from a customer point of view. They were also able to manufacture my unit within 2 days whereas another company quoted 5-7 days so that was an additional bonus.(price was competitive too). Keep up the good work, it’s much appreciated.
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Jordan PDFMODS profile picture
Jordan PDFMODS
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Kurt and Jason did a great tidy job replacing the glass at our new property. Left clean and tidy and worked quickly 👍
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Gwen Hayles
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Great business for getting your glass cut to measurement. Very friendly staff.
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Michelle Horsley
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Wow, what an amazing service. Right from when I called for a quote, the team were brilliant and helpful... the whole process was smooth. I met Jamie and Ashton who fitted the glass and they were pleasant, chatty and fitted the pane swiftly and perfectly leaving no mess what an amazing couple of guys!! Well done Shard End Glass and Glazing 👍👍

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