https://www.repairmywindowsanddoors.co.uk/ilford-misted-double-glazing-repairs-near-me/ What Causes Misty Windows and How to Prevent It Windows that are stained can be ugly but they also affect the energy efficiency of a home. This is why it's important to pinpoint and address the root of the problem. Foggy windows are an indication of aging windows. There are a variety of reasons your windows might have turned misty. Seals that are damaged The most common reason for windows that leak is a damaged window seal. Most modern windows are made with a double or triple pane of glass separated by an air space, and vacuum sealed around the edges. These windows are called Insulated Glass Units (IGUs) and could contain an inert gas, like argon or Krypton to further limit the transfer of cold or heat from outside to inside your home. Like all manufactured items window seals come with an extended life span and can eventually fail due to normal wear and tear or from damage caused by external forces, such as high winds or poor installation. However, they may also break due to environmental factors, such as solar heating and cooling, humidity, and even the use of harsh cleaning products. When window seals fail, they allow moisture to pass through the glass panes of your IGU, causing condensation that clouds your view. This can not only reduce the insulation value of your windows, but can also result in higher energy bills and even water damage to your home. A window that cannot be wiped to remove the haze of moisture that has encroached on the view is a sign of a failing seal. This is usually the case when the moisture in the window has accumulated to much that it has exceeded the capacity of the window to be desiccant. It is time to contact a window expert when this happens. The best way to prevent sealing failure is to follow the manufacturer's care instructions, which are typically printed on the inside of your window frames. It is also recommended to avoid high-pressure washing