Is your double glazing letting you down? Foggy windows, draughts, or strange noises might not just be minor annoyances—they could be signs that your glass unit needs replacing. At Clear Vision Glass, we help homeowners and commercial property owners spot problems early, avoid costly energy loss, and restore clarity to their windows and doors.
In this post, we’ll explore the key warning signs, the reasons to act fast, and when to call in the experts.
Contact usA glass unit—sometimes called a sealed unit or IGU (Insulated Glass Unit)—is made up of two or more panes of glass with a space between them, usually filled with air or gas. These units are commonly found in double glazing and triple glazing systems for homes, shops, and office buildings.
They are designed to provide:
Thermal insulation
Noise reduction
Security
A clear view
But over time, even the best glass units can fail.
Get in TouchIf you’re seeing fog or moisture trapped inside the glass, this usually means the seal on your unit has broken. This is called blown glazing. It’s one of the most obvious and common signs that your glass unit needs replacing.
You might notice:
A milky or misty appearance
Water droplets between the panes
Reduced visibility through the window
Once the seal has failed, the unit can no longer provide effective insulation.
Cracks or chips in the glass may seem harmless, but they can:
Compromise structural integrity
Let in moisture or insects
Create safety risks
Ruin the window’s appearance
If you’ve spotted any damage, it’s best to replace the glass unit before the problem worsens.
Can you feel a chill even with the windows closed? This may suggest that the glazing is no longer insulating effectively.
Possible causes include:
Warped frames
Failed seals
A degraded or poorly-fitted unit
Replacing the glass unit can eliminate cold spots and reduce your heating bills.
You might think a little misting or a small draught isn’t worth worrying about—but ignoring the signs can lead to:
Increased moisture and mould in your home or workplace
Damaged window frames and plaster
Higher energy bills over time
A drop in property value or kerb appeal
Acting early protects your investment.
Book in TodayHere at Clear Vision Glass, we recommend calling in the experts when:
You notice condensation between the panes
Cracks or chips are visible on the surface
The unit feels loose, rattles, or has shifted
You’re hearing more noise than usual
Your utility bills start creeping up without explanation
We can assess your glazing and let you know if repairs are possible or if a replacement is the better long-term option.
Contact our TeamIf you’ve noticed any of the warning signs mentioned above, don’t wait for the problem to get worse.
Contact Clear Vision Glass today for a friendly, professional glazing assessment. Whether you’re a homeowner looking for peace of mind or a business owner protecting your premises, we’re here to help.
Call us now or use our online quote form to get started.
