Why Has My Window Blown? 

Looking at foggy or misty patches between your window panes that aren’t going away? This is known as a ‘blown’ or misted window.

Blown windows occur when the seal in your double or triple glazing fails, allowing unwanted moisture to seep between the two panes of glass. As this moisture cools, it condenses between the glass panes and leads to foggy patches, water droplets, and a cloudy appearance.

This issue is more than just an eyesore. It also compromises the energy efficiency of your window unit.

Learning why your window has blown will help you understand how to prevent the problem from happening to your household.

Why Has My Window Blown? – Advice by Misted Window Glasgow Professionals

There are four main reasons why your double-glazed windows have misted up.

Age and Wear of Window Seals of Double-Glazed Windows

Double glazing is great, but it isn’t built to last forever. If your unit is older than 15 years old, it may be heading towards the end of its lifecycle.

After 15-20 years, the perimeter seals surrounding your glazed units start to fail as they have broken down over the years with age.

Poor Installation Leads to Early Repair or Replace

Windows that weren’t properly fitted by installers from day one are far more likely to have problems later down the line.

Poor installation causes unnecessary stress on certain parts of the window frame and seals. And over time, these pressure points can give way, allowing moisture to work its way between the panes to cause condensation on the inside.

Extreme Temperature Fluctuations

Scotland is known for its wild weather, and big temperature differences between the inside and outside of your home cause your window materials to expand and contract. Over time and over the seasons, this can gradually weaken the seals.

Manufacturing Defects Causes Misted Double Glazing

Sometimes, the fault in a double-glazed unit occurs during the manufacturing process, allowing moisture to find its way inside.

Can You Fix a Blown Window?

You can fix a blown window effectively through two different methods: by replacing the blown section and seal, or replacing the whole window.

Replacing the Glass Unit

The great news is that, in most cases, you won’t need to replace the entire window frame. Our double glazing specialists can expertly replace just the double-glazed unit within your existing frame, a cost-effective solution that restores your window’s energy efficiency.

Repairing the glass unit is typically much cheaper than replacing the whole window, and it also saves you the hassle of choosing a new style or model for your home.

Full Window Replacement

Sometimes, replacing the entire double glazed unit is the better option, and our honest professionals will always let you know what’s best for your household in the long term.

We might recommend a new entire window unit if your window is:

• Damaged
• Warped
• Showing signs of age
• Reaching the end of its lifespan

While this is a bigger job and typically more expensive, in the long run it may work out to be the cheaper option.

Can You Prevent Windows from Blowing?

Although nothing lasts forever, double glazing included, there are things you can do it help your window seals last longer.

Regular maintenance can prevent early seal failure. Keep your windows clean using suitable, non-abrasive cleaners that won’t damage the seals. Routine cleaning also gives you a chance to check that your seals are still in good condition.

Proper ventilation in your home also makes a difference by reducing extreme humidity levels that can put extra strain on window seals. Make sure to use extractor fans in steamy areas like kitchens and bathrooms, along with opening windows regularly to let fresh air circulate, which helps maintain conditions that are kinder to your double glazing.

Blown Double Glazing? Contact Expert Window Repair Professionals

Got a window that looks similar to a cloudy glassware? You might have a misted or blown window which can make a considerable impact on your home’s energy efficiency.

When a seal fails, the insulating properties of your window are lost. The sealed air or argon gas escapes, allowing heat to leak out and cold air to enter. This makes your heating have to work harder to stay warm. It may also lead to a rise of condensation inside your windows which can create health risks if left untreated over time.

If your windows are showing signs of misting that won’t clear or you’re noticing draughts around the frame, it’s likely that your double glazing has failed. Protect your home from rising heating bills and contact our team of professional window repair specialists today.

Totalseal Repairs has been the trusted window repair company in Scotland for over twenty years, helping homeowners across Scotland restore comfort and energy efficiency to their homes.

To learn more about how we can help you restore your windows function and efficiency, give our friendly Glasgow team a call on 0141 280 4089.