Manufacturer Warranty vs. Workmanship Warranty: What's the Difference?

When people hear the word “warranty,” they often assume it means they're covered no matter what happens.

That isn't always how roofing warranties work.

The two warranties homeowners and property owners are most likely to come across are a manufacturer warranty and a workmanship warranty. They cover different parts of the project, come from different parties, and may have very different terms.

Understanding the difference before you sign can save you confusion later.

A manufacturer warranty comes from the company that made the roofing product.

Depending on the roof, that could be the manufacturer of shingles, tiles, membrane, metal panels, coating, or another roofing component. This type of warranty may apply if there's an eligible defect in the product itself.

For example, it may apply if a roofing product fails in a way that's covered under the manufacturer's warranty terms.

Coverage can vary significantly depending on the product and warranty level. Some warranties only cover certain materials. Others may have requirements related to installation, registration, maintenance, or compatible roofing components.

The important thing to remember is that a manufacturer warranty covers the product. It doesn't automatically cover every issue that could affect the roof.

Manufacturer warranties usually include exclusions.

They may not cover damage from storms, foot traffic, poor drainage, building movement, lack of maintenance, alterations by another contractor, or installation-related issues.

Installation can matter here, too. Many roofing products must be installed according to the manufacturer's requirements. If there's a claim later, the manufacturer may review whether the product was installed as part of an eligible system and whether those requirements were followed.

That's one reason the contractor doing the work matters just as much as the roofing material you choose.

A workmanship warranty comes from the roofing contractor. It covers qualifying issues caused by the installation work.

Depending on the project, that may include concerns with flashing, fastening, underlayment, seams, transitions, pipe seals, vents, or other installation details.

A workmanship warranty is separate from a manufacturer warranty. If a roof leaks because of an installation issue, you would usually start by contacting the contractor who completed the work. If the problem appears to be related to the roofing material, the contractor can help determine whether the manufacturer's warranty process may apply.

The terms matter more than the label. Ask what is covered, what is excluded, how long the coverage lasts, and what you should do if you notice a problem.

A roof can look complete while still having details that affect how it performs.

Loose or incorrectly placed fasteners, poorly installed flashing, slipped tiles, improperly sealed penetrations, or a pattern that doesn't meet the material requirements can all create problems. Some issues show up right away. Others may not become obvious until the roof goes through heat, wind, or rain.

That's why it's helpful to choose a contractor who can explain their process, provide clear documentation, and give you the workmanship terms in writing.

Manufacturer and workmanship warranties work alongside each other, but they don't replace one another.

• Who provides it: The manufacturer provides the material warranty. The roofing contractor provides the workmanship warranty.

• What it covers: A manufacturer warranty may cover eligible material defects. A workmanship warranty covers qualifying installation issues.

• Who you contact: If you notice a leak or concern after the project, start with the contractor. They can inspect the roof and help determine whether it appears to be an installation issue, material issue, weather damage, maintenance problem, or something else.

• What you should keep: Hold onto your signed contract, final scope of work, warranty documents, invoices, material information, and maintenance records.

A warranty is much more useful when you understand it before a problem comes up.

Professional Roofing Services offers a 10-year workmanship warranty on reroofing projects. Before work begins, our team takes the time to explain what that workmanship coverage includes, how it differs from the manufacturer warranty on your selected materials, and what to keep on file once the project is complete.

We want you to understand the protection that comes with your roof and feel confident about the work being done on your property.

Can poor installation affect a manufacturer warranty?

It can. Manufacturer warranties often have installation requirements, and coverage may depend on whether the product was installed as part of an eligible system. Always check the specific warranty terms for the materials selected for your roof.

Who should I contact if my roof develops a leak after installation?

Start with the roofing contractor who completed the work. They can inspect the roof and help determine whether the issue appears related to installation, materials, weather damage, maintenance, or another cause.

Can PRS help me understand both warranties before a roof replacement?

Yes. PRS can explain the workmanship coverage included with the project and the manufacturer warranty available for the selected materials, including the relevant terms, exclusions, and maintenance expectations.