Is Your Foggy Window Covered by Warranty?

Before paying for foggy window repair or replacement, check your warranty. According to FGIA, many quality windows have seal failure coverage that could save you significant money.

Typical Warranty Coverage

According to industry research from FGIA and GANA, common warranty terms:

| Component | Typical Coverage |
|-----------|------------------|
| Seal failure (fog) | 10-20 years |
| Glass breakage | Not typically covered |
| Frame/hardware | 10 years to lifetime |
| Transferable? | Varies (often pro-rated) |

Premium brands often offer 20-year or even lifetime seal warranties.

What's Usually Covered

According to GANA, seal failure warranties typically cover:

• Visible moisture between panes
• Permanent fogging or hazing
• Seal defects causing failure

What's Usually NOT Covered

According to FGIA, warranties typically exclude:

• Condensation on interior or exterior surfaces (not seal failure)
• Damage from improper installation
• Glass breakage from any cause
• Stress cracks from frame movement
• Damage from pressure washing or harsh chemicals

How to Check Your Warranty

1. Find documentation: Original purchase paperwork, installer receipts
2. Identify manufacturer: Look for labels on window frame or sash
3. Contact manufacturer: Most have warranty lookup by serial number
4. Check transferability: If you bought the home, warranty may have transferred

Filing a Claim

According to FGIA, typical process:

1. Document failure with photos
2. Record window serial numbers
3. Contact manufacturer or installing dealer
4. Submit claim with proof of purchase (if available)
5. Schedule inspection if required
6. Receive replacement glass or window

Pro-Rated Coverage

According to GANA, many warranties are pro-rated after initial years:

Example: 20-year seal warranty

• Years 1-10: Full coverage
• Years 11-15: 50% coverage
• Years 16-20: 25% coverage

Even pro-rated coverage is better than paying full price.

The Bottom Line

Check warranty status before paying for repairs. According to FGIA, a significant percentage of seal failures occur within warranty periods. A few minutes of research could save hundreds of dollars.

*For complete guidance, see: [Foggy Windows: Repair vs. Replace](/guides/foggy-windows-repair-vs-replace)*