Foggy Window? Cracked Seal? A Homeowner’s Guide to Double Pane Glass Window Repair
| Repair Type | Cost per Window | Lifespan | Energy Efficiency Restored? | | :--- | :--- | :--- | :--- | | Defogging service | $60–$100 | 1–3 years | No (low) | | DIY IGU replacement | $50–$150 (glass only) | 5–15 years | Yes (if sealed correctly) | | Pro IGU replacement | $150–$400 | 10–20 years | Yes | | Full window replacement | $500–$1,200+ | 20–30 years | Yes (plus new frame) | double pane glass window repair
Contrary to popular belief, you generally simply "reseal" a foggy window. Once the desiccant (moisture-absorbing material inside the spacer) is saturated and the seal fails, the unit is compromised. Foggy Window
Here are your three real-world options:
But when they fail, they don’t fail like a single sheet of glass. If you see fog, condensation between the panes, or a hazy film, Here’s what you need to know about repairing them. | | :--- | :--- | :--- |
Double pane windows (also known as insulated glass units or IGUs) are a staple of modern energy-efficient homes. They consist of two panes of glass separated by a spacer and a layer of gas (usually argon or krypton) or dry air.