Repairing Double Glazed Windows Double-glazed Windows "blow" the insulating argon escapes causing the window to lose energy efficiency. The good news is that damaged double glazing is typically repaired without needing to replace the windows. Moisture or condensation in between your double-glazed windows is a typical sign that the seals https://www.repairmywindowsanddoors.co.uk/feltham-windowrepair/