How To Fix A Broken Double Pane Window Jun 2026

If the damage is extensive or the window frame is damaged, you may need to replace the entire sash or window frame. This can be a more complex task that requires more specialized tools and expertise. In this case, it may be best to consult a professional.

If the damage is limited to one pane, you can replace just that pane. Measure the dimensions of the broken pane and cut a new piece of glass to fit. Apply a thin layer of glazing compound to the window frame and carefully place the new glass into position. Use a glass scraper or a putty knife to press the glass firmly into place, making sure it is secure and even. how to fix a broken double pane window

✅ This works for cracks up to ~6 inches long. The repair will be visible but functional. If the damage is extensive or the window