Repair Double Pane Windows [extra Quality] 【2026】

You need three numbers: Width, Height, and Thickness (to the 1/16th of an inch). Order a replacement insulated glass unit (IGU) from a local glass shop. Bring them the old unit if possible.

Look for plastic strips holding the glass in place. Pry these out carefully with a putty knife. Label which side is up.

This requires precision, but it is the correct way to restore the window to like-new condition. repair double pane windows

Scrape out old butyl tape or silicone. The frame must be spotless.

You’ve seen it before: that ugly white fog sitting between the two panes of glass in your living room window. You wipe the inside, you wipe the outside, but the haze won't go away. You need three numbers: Width, Height, and Thickness

When double pane windows get cloudy or damaged, most homeowners assume it’s time for a total replacement. But here is the good news:

This is a temporary fix (lasting 1–5 years), but it costs about $20 vs. $300 for a full replacement. Look for plastic strips holding the glass in place

Most double hung windows have side tabs. Push them in and tilt the sash out. Lay it on a workbench.