Misted & blown double glazing
When a sealed unit's edge seal fails, moisture gets between the panes and the glass mists up permanently — no amount of cleaning fixes it, because the water is inside. The good news is that the frame is almost always fine. We measure the failed unit, order the glass, and swap only the unit, which costs a fraction of a new window. Most units are back and fitted within a week of measuring, and the fitting itself takes around 20 minutes per window.