Roof replacement in the Bay Area: answers, costs and a licensed roofer

Why are so many the Bay Area roofs due for replacement?

This site covers Imperia's roof-replacement service area: Marin County, San Francisco and the Peninsula, the East Bay, and the South Bay to San Jose. It does not cover Sonoma or Napa. Housing age shifts sharply across that map: San Francisco's median home was built in 1946, Berkeley's in 1944 and Oakland's in 1953, while Marin County's dates to 1967, San Mateo's to 1966, Alameda County's to 1969, Santa Clara County's to 1975 and Contra Costa County's to 1978.

Source: U.S. Census Bureau, American Community Survey 2024 5-year estimates (tables B25035 and B25003), via Census Reporter.

What should I read first?

• What does a new roof cost in the Bay Area? Published benchmarks and local permit fees.
• Should I repair or replace my roof? Age, damage and the code limit on layers.
• My insurer says my roof is too old. What now? California rules, including SB 1301.
• How long does a roof last in the Bay Area? Lifespan by material, and how local weather changes it.
• What are the signs I need a new roof? A checklist you can start from the ground.
• Do I need a permit to replace my roof? How it works in the Bay Area.
• Does my new roof have to be Class A? Fire zones and fire-rated roofs.
• Is El Niño a reason to replace my roof this winter? NOAA's 2026–27 outlook, rainfall so far and timing your replacement.

How does getting a quote work?

1. Tell us about the home and the roof with the short form: whether you own it, roughly how old the roof is, your timeline and your city.
2. We pass your request to an independent, licensed roofer who replaces roofs in the Bay Area.
3. The roofer contacts you to schedule an inspection and give you a written estimate. It's free for homeowners, and you're never obligated to hire anyone.

Which areas do you cover?

We cover Marin, San Francisco, the Peninsula, the East Bay and the South Bay to San Jose, including San Rafael, Novato, Mill Valley, Sausalito, San Francisco, Daly City, Pacifica, San Mateo, Redwood City, Oakland, Berkeley, Alameda, Hayward, Fremont, Walnut Creek, Concord, San Jose, Santa Clara, Sunnyvale, Palo Alto and neighboring cities — but not Sonoma or Napa counties.

Which area guide should I use?

This site is the Bay Area-wide starting point. For local housing stock, weather and permit rules, use the guide for your area:

• Marin Roof Replacement — Marin County only, including West Marin, the Ross Valley and the 101 corridor
• SF Roof Replacement — San Francisco and San Mateo County
• East Bay Roof Replacement — Alameda and Contra Costa counties
• South Bay Roof Replacement — Santa Clara County, from Palo Alto to San Jose
• North Bay Roof Replacement — Marin, Sonoma and Napa counties (this hub does not itself cover Sonoma or Napa)

Who runs this site?

Bay Area Roof Replacements is an independent referral service, not a roofing contractor. We don't do roofing work, set prices or inspect roofs. Roofers may pay us for referrals. Read more about us.