https://www.repairmywindowsanddoors.co.uk/walton-on-thames-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Window Misted? Double glazing is a fantastic way to improve the efficiency of your property and ensure optimal energy efficiency. If you notice that your windows are getting misty it is an indication that the window seal is broken. This will allow moisture into the insulation section of your windows, which can decrease their performance drastically. This problem is easy to repair. What is it? It's possible to get condensation on double-glazed windows, especially if it is very cold and cold and windy. This is a normal indication that your double glazed windows are keeping out the cold, but let in heat. You can clean it off or let it clear on its own. This is more serious If your double-glazed windows leaks inside. This usually means that the seal on your double glazing has deteriorated or failed as it is known in the industry. Moisture can enter between the two panes of glass in the case of a double-glazed unit that has failed. This could cause the argon, xenon or the krypton gas used in them to leak out too. When this happens, the high density gases lose their insulating properties and your window is not sealed anymore. One of the primary reasons for the seal of a window to wear out is normal wear and tear over the years. This is due to the constant expansion and contraction of gasses inside your double glazed windows as temperatures rise and fall. Double glazing seals are susceptible to damage by using abrasive chemicals. If the seal on your double-glazed windows is broken this means warm air can escape from between the glass panes, and cool air could enter which causes moisture to build up on the spacer bar inside the glass unit. This is often called a blown window' and can result in expensive energy bills during winter. This issue can be resolved by replacing the glass units in your double-glazed windows. This is a more cost-effective solution