Repairing Double Glazed Windows When Double-glazed windows "blow" in the wind, the insulating gas argon escapes, which causes them to lose their energy efficiency. The good news is, damaged double glazing is typically repaired without the need to replace the windows. Condensation or moisture in between your double glazed windows https://www.repairmywindowsanddoors.co.uk/hernebay-windowrepair/