Repairing Double Glazed Windows When Double-glazed windows "blow", the insulating gas argon escapes, which causes them to lose their energy efficiency. The good thing is that blown double glazing is often repaired without needing to replace the windows. Moisture or condensation in between your double-glazed windows is the most frequent https://www.repairmywindowsanddoors.co.uk/ealing-windowrepair/