Repairing Double Glazed Windows When Double-glazed windows "blow" in the wind, the gas that insulates them, argon, escapes, causing them to decrease their energy efficiency. The good news is that blown double glazing is often repaired without having to replace your windows completely. Condensation or moisture in between your double https://www.repairmywindowsanddoors.co.uk/kentishtown-windowrepair/