New Roof Cost in San Mateo, CA: Price Drivers, Permits & Rules

What does a new roof cost in San Mateo?

Any single San Mateo number would mislead you. In the 2025 Cost vs. Value report, a midrange asphalt-shingle replacement of about 3,000 square feet in the San Francisco metro is listed at roughly $38,000, with metal at roughly $65,000 for the same size job. Your own roof's price will differ; a free written estimate is the only real number. Read what moves the price and measure your roof in squares with the estimator.

Why are so many San Mateo roofs due?

San Mateo's median home was built in 1965, and about 20,000 homes are owner-occupied. Older neighborhoods such as Baywood and San Mateo Park have larger pre-war and post-war homes; the hills have mid-century homes, including Eichlers; and the bayside has newer planned communities. (ACS 2024 5-year, B25035, B25003)

What makes San Mateo roofs cost more or less?

The usual drivers apply everywhere:

Roof size and pitch
Material: asphalt, metal, tile or a low-slope membrane
How many old layers come off
Decking repairs found at tear-off
Permit and inspection requirements
Access, staging and disposal

In San Mateo, these come up often:

Mid-century low-slope roofs and Eichlers
Large, complex older homes
Hillside access in the western neighborhoods
HOA rules in planned communities

Do I need a permit for a new roof in San Mateo?

The City of San Mateo's Building Division issues reroof permits (City of San Mateo).

Does San Mateo require a cool roof?

San Mateo falls in climate zone 3 on the Energy Commission's map (CEC climate zones). Prescriptive cool-roof rules cover steep-slope reroofs only in zones 4 and 8 to 15 and low-slope reroofs in zones 4 and 6 to 15, so they don't apply here. A lighter, reflective product is still an option (CEC).

Is my San Mateo home in a fire hazard zone?

Western hillside neighborhoods border open space. Check your address on CAL FIRE's hazard map. (CAL FIRE hazard zones, HSC 13132.7)

How do I get an exact price for my San Mateo roof?

The only accurate price is one built on your roof. For your actual price, request a free written estimate: a licensed roofer measures the roof and prices your exact scope. Use the quote checker to compare bids line by line, and see repair or replace.

Nearby city guides: Redwood City, Daly City.

Ready to hire a roofer in San Mateo?

This page covers price. For choosing who does the work (license checks, permits and what a bid should include), see roofing contractors in San Mateo.

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

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Frequently asked questions

How much does a new roof cost in San Mateo?

The closest published metro survey, the 2025 Cost vs. Value report for San Francisco, prices a midrange 30-square tear-off and replacement at roughly $38,000 in asphalt shingles and roughly $65,000 in metal. Your roof's size, pitch, material and access will move the number; a free written estimate is the only figure that applies to your home.

Is a cool roof required in San Mateo?

No prescriptive requirement. San Mateo's ZIP codes (94401, 94402 and 94403) are in climate zone 3.

Who issues San Mateo reroof permits?

The City of San Mateo's Building Division. Unincorporated areas nearby go through San Mateo County.

Why do two roofers quote very different prices?

Different materials, underlayment, decking allowances and scope. Compare bids item by item, not just the total.

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.