The short answer is , but the definition of "repair" depends on the severity of the damage.
—the two panes of glass and the spacer between them—rather than just one sheet of glass. YouTube +2 Repair vs. Replacement Options The approach depends on the type of damage: Foggy Windows (Broken Seal): If moisture is trapped between panes, the seal has failed. While some specialized services can drill holes to clean and defog the interior, the standard permanent fix is replacing the IGU. Cracked or Broken Glass: You generally cannot replace just one pane of glass because the factory seal and insulating gas (like argon) will be lost. You must measure and order a new sealed unit from a glass specialist . Mechanical Issues: If the window won't stay open, it is likely a hardware issue with the spring-loaded tabs or balances, which can often be fixed with a screwdriver without replacing the glass. YouTube +6 DIY Steps to Replace an IGU If the frame is in good condition, you can replace the glass unit yourself: 15 sites How to Repair a Double Pane Window | Ask This Old House Nov 5, 2023 —