Repairing Double Glazed Windows When Double-glazed windows "blow", insulating argon escapes causing the window to lose energy efficiency. The good news is, blowing double glazing is usually repairable without having to replace the windows. The presence of condensation or moisture between your double-glazed windows is a typical sign that the https://www.repairmywindowsanddoors.co.uk/coulsdon-windowrepair/