What is a roof warranty?
Two warranties — one on the shingles, one on the install.
By The T.A.P. Team · September 2024 · 5 min read
A new roof actually comes with two different warranties, and homeowners often confuse them. The manufacturer's warranty covers the shingles themselves against defects; the workmanship warranty is the roofing contractor's promise to stand behind the installation. They cover very different failures — and the workmanship one is only as good as the company that offers it. Here's what each roof warranty covers, what can quietly void them, and why the installer matters as much as the shingle brand.
- Manufacturer warranty = defects in the shingles
- Workmanship warranty = the contractor's installation
- Most leaks are install issues, not shingle defects
- Poor ventilation or bad install can void coverage
- A workmanship warranty is only as good as the company
Manufacturer (material) warranty
This comes from the shingle manufacturer and covers the product against manufacturing defects — shingles that fail prematurely due to how they were made. Basic shingles often carry a "lifetime" limited warranty, but read the fine print: coverage is usually prorated over time and typically covers the materials, not the labor to tear off and reinstall. It protects against a bad batch of shingles — not against a bad installation.
Workmanship (installation) warranty
This is the contractor's own warranty on their labor — if the roof leaks because of how it was installed (flashing, nailing, valleys), they'll fix it. This one matters enormously, because the majority of roof problems trace back to installation, not shingle defects. Workmanship warranties vary widely in length and in whether the company will actually still be around to honor them, which is the catch.
What voids a roof warranty
Warranties have teeth you can trip over. Inadequate attic ventilation can void a manufacturer's warranty. So can installing new shingles over an old layer, unpermitted work, using mismatched components, poor maintenance, or later work by another contractor who disturbs the roof. And a workmanship warranty is worthless if the installer cut corners or goes out of business.
Why the installer matters most
Because installation drives most failures, who puts the roof on matters as much as which shingle you pick — see how to choose a roofer. Established, manufacturer-certified installers can often offer enhanced system warranties that cover both materials and labor, and they're far more likely to be around in ten years to honor the promise. Ask for both warranties in writing before you sign. See our roofing team.
| Warranty | What it covers |
|---|---|
| Manufacturer (material) | Defects in the shingles |
| Workmanship (installation) | The contractor's labor/install |
| Enhanced/system | Both materials and labor (certified installers) |
| Common void: no ventilation | Can cancel manufacturer coverage |
| Common void: layover/bad install | Undercuts both warranties |
A "lifetime" shingle warranty means little if the roof leaks from a bad install the manufacturer won't cover and the installer is gone. Protect yourself by getting both the manufacturer and workmanship warranties in writing, understanding what voids them (ventilation, layovers, maintenance), and — most important — choosing an established, certified installer likely to be around to stand behind the work. The company matters as much as the coverage.
Roof warranties in North Texas
With DFW's storm exposure, a real workmanship warranty from a company that will still be here after the next hail season is worth a lot. We install manufacturer-certified roof systems and stand behind them across Allen, Plano, and Frisco. See our roofing team.
The short version
- A new roof has two warranties: manufacturer (materials) and workmanship (installation).
- The manufacturer warranty covers shingle defects, usually prorated and materials-only.
- The workmanship warranty covers the contractor's installation — where most leaks come from.
- Poor ventilation, layovers, unpermitted work, and bad maintenance can void coverage.
- Enhanced system warranties from certified installers can cover both materials and labor.
- A workmanship warranty is only as good as the company standing behind it — vet the installer.
Roof warranties — frequently asked questions
Want a roof that's backed for real?
Get a free estimate with both warranties in writing. Serving Dallas–Fort Worth & North Texas for over 25 years.