Many modern units feature a Low-Emissivity (Low-E) coating. When repairing or replacing, ensuring the new unit has this same coating is essential for maintaining your home's thermal performance. Common Repair Options How to Repair a Double Pane Window | Ask This Old House
: The most permanent solution is replacing the IGU as described in the "Broken Glass" section. YouTube +3 Quick Repair Checklist Issue DIY Friendly? Recommended Action Drafts/Air Leaks Yes Apply new silicone caulk or weatherstripping. Surface Crack Limited Use epoxy/resin kit for a temporary fix. Fogging/Haze No Replace the IGU or hire a defogging service. Shattered Pane Advanced DIY Order a custom IGU and replace the unit yourself. Important Tips Safety First repair double pane window