Fixing Double Pane Windows 【Web】

Technicians drill tiny holes (3-6 mm) into the glass.

Air leaking around the edges, often caused by damaged frames or old weatherstripping. 🔧 Repair Strategies Replacing the Glass Unit (IGU) fixing double pane windows

The perimeter spacer contains a desiccant material that absorbs moisture between the panes to prevent fogging. The unit is sealed with a specialized sealant (often butyl or silicone). Technicians drill tiny holes (3-6 mm) into the glass

Most experts from Evans Glass suggest that replacing the IGU is the only permanent way to restore clarity and energy efficiency. Temporary or Minor Fixes The unit is sealed with a specialized sealant

Double-pane windows, also known as Insulated Glass Units (IGUs), consist of two panes of glass separated by a spacer bar. The space between the glass is typically filled with air or an inert gas (like argon or krypton) to reduce heat transfer.

| Scenario | Recommended Action | | :--- | :--- | | | Option B (IGU Swap) is usually the best balance of cost and performance. Option A (Defogging) is acceptable for outbuildings or strict budgets. | | Foggy glass + Rotted/Warped Frame | Option C (Full Replacement). Repairing the glass will not stop water from leaking around the frame. | | Single Cracked Pane | Option B (IGU Swap). You generally cannot replace just one pane of a double unit; the entire sealed unit must be replaced. | | High Energy Bills | Option C (Full Replacement). Consider upgrading to triple-pane or higher-efficiency glass. |

This is the only way to truly fix the problem. You have two paths: