| Cracks or Chips | Visible cracks or chips weaken the glass and reduce safety. In addition, damaged panes compromise structural integrity and appearance. As a result, glass-only replacement becomes necessary to restore strength and maintain a clean finish. |
| Fogging or Cloudiness Between Panes | Condensation between panes signals a failed seal in an insulated glazing unit. Because seals cannot be repaired once compromised, replacing the IGU is the only effective solution. Consequently, clarity, insulation, and energy performance return. |
| Difficulty Opening or Closing | When windows feel stiff or misaligned, the issue often relates to glass imbalance or seal failure rather than the entire frame. Therefore, replacing the glass unit can improve fit and operation. As a result, windows open and close more smoothly while sealing properly. |
| Drafts or Air Leaks | Noticeable drafts indicate failing seals around the glass. In many cases, upgrading to a properly sealed insulated glass unit resolves airflow issues. Consequently, interior comfort improves and energy loss decreases. |
| Moisture at the Glass Edge | Moisture buildup near the glass perimeter often points to seal deterioration rather than frame failure. Therefore, glass window replacement with a new sealed unit prevents further moisture intrusion. As a result, surrounding materials remain protected and long-term performance improves. |