Best Roofing Warranties Explained for Homeowners

Understanding the Two Types of Roofing Warranties

Every new roof comes with two separate warranties, and understanding both is critical:

Manufacturer Warranty: Covers defects in the shingle material itself. This comes from the company that made the shingle (Tamko, GAF, Owens Corning, etc.). Coverage varies from basic prorated to full non-prorated system warranties.

Workmanship Warranty: Covers errors in installation. This comes from your contractor. If a leak develops because something was installed incorrectly, this is the warranty that covers it.

Here's the key insight: most roof failures aren't material defects — they're installation problems. That makes your contractor's workmanship warranty arguably more important than the manufacturer warranty.

Ranking the Best Warranty Packages

Based on coverage, transferability, and real-world claims experience:

• BEST: Full system warranty (non-prorated, 50-year) + contractor workmanship warranty (10–25 years). Only available through certified installers.
• GOOD: Standard manufacturer warranty (prorated after 10 years) + contractor workmanship warranty (5–10 years). Common with quality contractors.
• BASIC: Material-only warranty (prorated) + limited or no workmanship warranty. This is what you get from non-certified installers.
• WORST: 'Lifetime warranty' with no certified installation. Sounds great on paper but has so many exclusions it's nearly worthless.

The Homestretch Warranty Package

As a Tamko Pro Certified Contractor, we offer Tamko's strongest warranty package to our customers. This includes full-system coverage on materials, extended non-prorated protection, and the ability to transfer the warranty if you sell your home.

On top of the manufacturer warranty, our Homestretch workmanship warranty covers any installation-related issue. We stand behind our work because we're local — we're not going anywhere, and our reputation depends on every roof we install performing as promised.