https://www.repairmywindowsanddoors.co.uk/mile-end-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Window Misted? Double glazing is a great method to increase the efficiency of your home and guarantee maximum energy efficiency. If you notice that your windows are leaking this could be a sign that the seal on your window has broken. This allows moisture to get into the insulation portion of your window. This could drastically decrease their performance. Fortunately, this issue is relatively simple to fix. What is it? It's possible to get condensation on double-glazed windows, especially when it's extremely cold and stormy. It's normal and a indicator that your windows are working well, keeping cold out and heat in. It can be easily cleaned away, or you can let it clear by itself. This is more serious If your double-glazed windows leaks inside. This usually means that the seal on your double glazing has failed or 'failed' as it is referred to in the trade. When a double glazed seal unit breaks down, or fails, moisture may get in between the two glass panes of your window. The argon, xenon, or krypton gases that are employed in these units could also escape. Once this occurs, the high-density gases lose their insulation properties, and your window ceases to function as a sealed unit. One of the primary reasons for a window's seal to wear out is normal wear and tear over years. This is caused by the constant expansion and contraction of gases inside your double-glazed windows as temperatures rise and fall. Double glazing seals are susceptible to damage by using abrasive chemicals on them. If the seal on your double-glazed windows is damaged the warm air could escape through the glass panes and cool air could enter creating moisture on the spacer bars within the glass unit. This is referred to as a "blown" window and can cause costly energy bills in winter. This issue can be resolved by replacing the glass units in your double-glazed windows. It's a less e