Glass Window Repair — Double Pane

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.

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. double pane glass window repair

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. Contrary to popular belief, you generally simply "reseal"

| 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) | They consist of two panes of glass separated

Have you tried defogging or replaced an IGU yourself? Share your experience in the comments.

Check your original window warranty. Many high-quality windows have 20-year seal warranties that transfer with the home. You might get free glass replacement!