Repairing Double Glazed Windows When Double-glazed windows "blow" in the wind, the insulating gas argon escapes, causing them to lose their energy efficiency. The good news is that blowing double glazing is usually repaired without needing to replace the windows. The presence of condensation or moisture between your double glazed https://www.repairmywindowsanddoors.co.uk/southockendon-windowrepair/