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What warranty should a new roof come with?

Short answerA new roof should come with two warranties: the manufacturer's coverage for the materials and the roofer's written workmanship warranty for installation. Terms vary widely, so get both in writing, with the length, what's covered, whether it transfers to a buyer and how to make a claim. Compare them in your free written estimates.

Every roofer we work with is licensed, insured and highly reviewed by Bay Area homeowners.

Updated · Sources reviewed November 12, 2026 · By Bay Area Roof Replacements

  • Active C-39 roofing license, checked on CSLB
  • Contractor's bond and workers' comp on file
  • Tear-off, permit and warranty paperwork handled
  • Free written estimate, no obligation

What's the difference between the two warranties?

  • Manufacturer warranty: covers defects in the shingles, membrane or panels. Enhanced versions may also cover installation when a certified contractor installs a full system; registration is often required.
  • Workmanship warranty: the roofer's promise about installation, such as leaks from flashing or fastening. Its value depends on the company standing behind it.

What should the contract say?

The length of each warranty, what's excluded, whether it transfers, and who to call. California requires home improvement contracts to be in writing with specified terms (B&P 7159).

What can void a warranty?

Common causes: skipped registration, unapproved repairs, foot traffic or other trades damaging the roof, and lack of maintenance. Read the exclusions.

What if the new roof leaks?

See why a new roof leaks and what's covered.

For your actual price, request a free written estimate: a licensed roofer measures the roof and prices your exact scope.

Every roofer we work with is licensed, insured and highly reviewed by Bay Area homeowners.

Get a free replacement quote

Frequently asked questions

How long should a workmanship warranty be?

There's no legal standard. Compare written terms across bids and favor established companies.

Do roof warranties transfer when I sell?

Some do, often with notice or a fee. Check before you list.

Do I need to register my roof warranty?

Many manufacturer warranties require registration; ask the roofer to do it and send you proof.

Related questions

Sources

Sources reviewed November 12, 2026. Figures are published estimates and official fees, not quotes. Confirm prices, permits and requirements with your contractor and building department. This page is general information, not legal or insurance advice.