https://www.repairmywindowsanddoors.co.uk/fulham-misted-double-glazing-repairs-near-me/ Why is My Double Glazed Unit Misting Up? If condensation develops on the outside of double glazing, it is not a problem In fact, it indicates that your windows are functioning properly and keeping heat inside your home. When it appears on the inside of window panes, it is a problem. If you notice that there is moisture between your windows, it is a sign that the seals are not working properly. This can lead to higher heating bills and less insulation. This could be due to various factors. 1. The seals are not working properly Misting that occurs on the outside of your windows is typically caused by condensation that has gotten into the gap between the glass panes. Typically the condensation appears as a cloudy layer and decreases the transparency of your window. The misting in double-glazed windows is much more serious, and indicates that the seals on the insulating unit are failing. This indicates that the seal is broken and moisture is leaking between the two panes of glass. This causes fogging, and reduces the efficiency of your window. Failing double glazing can also impact the overall appearance of your home and the safety of your family members. There are a myriad of reasons for your double-glazed windows to fail. They could be due to natural wear and tear, a poor installation or design problem with your window frame. It is crucial to choose a reputable installation company who will guarantee their work, and not invalidate any warranties from the manufacturer. One of the main reasons why your double-glazed units could fail is because they've become water damaged. This could be an outcome of poor installation, or perhaps insufficient drainage and spacer blocks. The moisture then begins to penetrate and over time can cause the seals to break and cause the formation of condensation between the glass panes. A common reason for a double-glazed unit failing is that the desiccant