What this video covers
How can I tell if my double glazing has failed?
The tell-tale sign is misting or fogging between the two panes that you can't wipe away. The seal has gone, so the insulating gas has escaped — but usually only the glass unit needs replacing, not the whole window.
In this video
- 0:00 The short answer
- 0:14 Misting between the panes
- 0:28 You'll feel it too
- 0:43 Usually just the glass needs swapping
- 0:58 What this means for you