Modern insulated glass units are built to provide years of reliable performance, but they are constantly exposed to changing weather conditions, sunlight, moisture, and seasonal temperature fluctuations. Over time, these conditions naturally affect the seal that protects the space between the panes.
Some of the most common causes include:
- Natural aging of the insulated glass seal
- Long-term exposure to sunlight and UV rays
- Seasonal expansion and contraction caused by temperature changes
- Moisture penetration
- Physical impact that cracks or damages the glass
- Improper installation
- General wear over many years of use
Once the seal fails, outside air and moisture can enter the space between the panes. This often leads to condensation, fogging, and reduced insulating performance.
Not every failed insulated glass unit requires replacing the entire window. In many cases, replacing the insulated glass alone restores the window’s appearance and performance. If our inspection reveals additional issues affecting the frame, sash, or operating components, we’ll explain your options and recommend the solution that provides the best balance of performance, durability, and value.
Looking for More Information?
Visit our Frequently Asked Questions (FAQ) to learn more about:
- What Is an Insulated Glass Unit (IGU)?
- Can Foggy Windows Be Repaired?
- Why Do Double-Pane Windows Fog Up?
- How Much Does Insulated Glass Replacement Cost?
