Telltale Signs It's Time to Replace Your Window Glass

Windows rarely fail overnight. They give you clues. Spotting them early saves money and keeps your home comfortable and secure.

1. Misting or fog between the panes

Moisture trapped inside a double-glazed unit means the seal has failed. No amount of cleaning helps — the sealed unit needs replacing. The good news: usually the frame is fine, so it's a quick fix.

2. Draughts and cold spots

If you feel cold air near a closed window, the seal, glass or frame is letting heat out and paying your heating bill for the street.

3. Cracks or chips

Even a small crack weakens the glass and spreads over time with temperature changes. Cracked glass is also a security and safety risk and should be replaced promptly.

4. Rising energy bills

Old single glazing or failed units let heat escape. Modern double or triple glazing pays for itself over time through lower bills.

5. Outside noise

If your home has grown noisier, worn glazing may be to blame. Upgraded or acoustic glass restores the quiet.

Not sure?

Send us a photo or call — we'll tell you honestly whether it's a simple repair or worth replacing, and quote upfront.