https://www.repairmywindowsand....doors.co.uk/lambeth-
How to Spot Blown It doesn't matter how old your double glazing system is, it can still fail. It is susceptible to failure, and once it does you need to get it fixed as soon as possible. Misting is one of the first indications that your double-glazed windows are failing. It shows that the seal between the two glass panes has sprung a leak, which means that your window will no longer be as efficient in insulating. Seals that are damaged If the window seal fails, moisture can enter between the two glass pan