Double Paned Window Repair ⚡

| Repair Type | Average Cost per Window | Energy Savings Restored? | | --- | --- | --- | | Defogging | $60 – $100 | No | | IGU Replacement (glass only) | $200 – $400 | Yes | | Full window replacement | $600 – $1,200+ | Yes |

Let’s pull back the curtain on double paned window repair—what works, what doesn’t, and how to know when to fix versus replace. A double paned window isn't just two pieces of glass. It is a sealed system. The two panes are separated by a spacer (usually metal or foam) and filled with an insulating gas—typically argon or krypton. The air gap stops thermal transfer (heat moving from one side to the other). double paned window repair

This is almost as labor-intensive as full replacement and often fails again quickly. Most professionals won't offer this. Option 3: Glass Unit Replacement (The real fix) This is the gold standard. You keep your existing window frame (sash) but replace only the insulated glass unit. A glazier removes the old IGU, orders a new one custom-sized, and installs it. | Repair Type | Average Cost per Window

A temporary cosmetic fix. Defogging removes the cloudiness, but it does not restore the inert gas . You’ll still have poor insulation. Worse, the seal is still broken, so fog usually returns within 1–3 years. We do not recommend this for energy savings. Option 2: Seal Replacement (Partial repair) In rare cases, if the frame is perfect and only the sealant failed, a glazier can remove the glass unit, clean the spacer, and apply new sealant. It is a sealed system