Repairing Double Glazed Windows When Double glazed windows "blow" the insulating argon escapes, causing the window to lose energy efficiency. The good thing is that double glazing is often repaired without having to replace your windows completely. Condensation or moisture in between your double-glazed windows is the most frequent sign https://www.repairmywindowsanddoors.co.uk/clactononsea-windowrepair/