When temperatures drop, many homeowners start to notice a frustrating problem with their windows, condensation and misting trapped between the glass panes. If this sounds familiar, your double glazing may have “blown.”

What Does Blown Double Glazing Mean?

Double glazed windows are made up of two panes of glass sealed together to form an insulated unit. The space between the panes is designed to be airtight and moisture-free, helping to keep heat inside your home and reduce outside noise.

Blown double glazing occurs when the edge seal of this unit fails. Once the seal is damaged, air and moisture can enter the gap between the panes. Over time, this leads to:

• Fogging or misting inside the glass

• Water droplets that cannot be wiped away

• Reduced thermal insulation

• Increased energy bills

• A less attractive appearance to your property

Unfortunately, this is not something that can be repaired with cleaning. The entire glass unit needs to be replaced to restore your window to full performance.

Can Cold Weather Cause Double Glazing to Blow?

While cold weather doesn’t directly break the seal, it can highlight an existing weakness. Older windows or poorly installed units are more likely to suffer from seal failure. The constant expansion and contraction of materials during winter months can make minor damage worse, allowing condensation to become visible.

If you’ve recently noticed misty windows during the colder season, it’s a clear sign that action is needed.

How to Spot the Problem

A common misunderstanding is confusing internal condensation with blown glazing. Here’s the difference:

• Condensation on the inside of the window: usually caused by humidity in the home

• Condensation between the panes: a definite indicator of blown double glazing

Why You Should Replace Blown Glass Quickly

Leaving blown double glazing unrepaired can cost you more in the long run. Inefficient windows allow warm air to escape, forcing your heating system to work harder. Replacing only the glass, rather than the full window frame, is often a far more affordable solution.

Modern replacement units can be fitted into existing frames with minimal disruption to your home.

Professional Double Glazing Repairs in West Yorkshire

At Rite Choice Windows, we specialise in fast and cost-effective replacement glass for blown double glazing units. Whether it’s a single window or multiple units throughout your property, our experienced team can restore clarity and insulation in no time.

Our services include:

• Replacement double glazed units

• Window and door glass repairs

• UPVC window maintenance

• Conservatory glass replacement

We provide friendly advice, accurate quotes and reliable installations carried out to the highest standard.