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Misty Double Glazing Repair When the airtight seal securing the two panes of a double-glazed window fails, misty double glazing can occur. This allows moisture into the window and reduces its insulation properties. Getting your windows professionally repaired can be far cheaper than replacing the entire window. This will also help you to prevent any further damage or condensation issues. Seals The window seal (also known as a uPVC seal) is vital to ensure that your double-glazed is in top shape. If your w