When you get a new roof, the word warranty gets used a lot, but it covers two very different things that homeowners often blur together. One protects the materials, the other protects the installation, and a leak that one covers, the other may not. Understanding the difference helps you ask the right questions before you sign and know where you stand if something goes wrong later.
The manufacturer warranty covers the roofing materials themselves, the tile, shingle, or membrane, against defects. If the product fails prematurely due to a manufacturing defect, this warranty is what applies. It comes from the company that made the material, not the roofer, and its length and terms vary by product and manufacturer. It is worth knowing what the material warranty covers on the product going on your roof.
The workmanship warranty is separate and, in many ways, the one that matters most day to day. It covers the installation, the labor and how the roof was put together, and it comes from the roofing contractor. Most roof problems in the early years are not defective materials but installation issues, poor flashing, bad nailing, skipped details, covered on our page on signs of a bad installation. A workmanship warranty is only as good as the contractor standing behind it.
| Warranty | Covers | From |
|---|---|---|
| Manufacturer | Material defects | The product maker |
| Workmanship | The installation | The roofing contractor |
The two warranties fill each other's gaps. A material defect is the manufacturer's; a leak from a poorly installed flashing is the contractor's. If you only have one, you are exposed on the other side. A leak that turns out to be an install error is not covered by the material warranty, and a genuine product defect is not the roofer's workmanship. This is one reason choosing a solid contractor matters, since their workmanship warranty is worthless if they disappear, covered on our page on choosing a roofing contractor.
Warranties have conditions. Unpermitted work, improper installation, lack of required maintenance, or unauthorized alterations, like a solar mount drilled through a new roof by another company, can void coverage. This is another reason to have work permitted and done right, covered on our page on roof permits, and to keep up with basic maintenance, which some warranties require.
Before you commit to a roof, ask what the manufacturer warranty covers on the specific product, and what the contractor's workmanship warranty covers and for how long. Get both in writing as part of a detailed estimate, covered on our page on reading a roofing estimate. Clear warranty terms, like a clear scope, are a sign of a contractor who does careful work and expects to stand behind it. When in doubt about your roof's coverage or condition, a roof inspection gives you a written record to work from.
Clear warranty terms in writing. Call (310) 806-5959 or request an estimate below.
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