The two panes are not independent; they are a single, sealed factory unit. Once that seal is breached by a crack or break, the insulating gas escapes, and moist air enters.
For double-pane windows, hiring a glass repair service is the most reliable route. one pane of double pane window broken
Most experts recommend replacing the entire IGU (both panes and the seal) while keeping your existing window frame. Repair vs. Replacement Options The two panes are not independent; they are
| Situation | Best Action | | --- | --- | | Small crack (<6”), renters, or short-term fix | DIY resin patch + plastic seal | | One pane broken, frame is fine | Replace the IGU (order online or from glass shop) | | Both panes broken or frame damaged | Full window replacement | | You’re not comfortable measuring or removing the sash | Hire a local glass company to replace the IGU | Most experts recommend replacing the entire IGU (both