What should I ask a Redwood City roofing company before hiring?

Does my Redwood City neighborhood change the job?

Yes. The city's median home dates to 1968, with about 14,500 owner-occupied homes (ACS B25035, B25003). Redwood Shores, on filled bayland, is mostly townhomes and planned communities where an association may control roofs and colors (HOA guide). The flatlands around Woodside Road and Roosevelt are warmer and sunnier than the coastside cities, so south slopes age first. Farm Hill and the western hills add slope and trees.

Is a Redwood City roofing company licensed for this job?

You can find out in a minute. Enter the company name on CSLB and look for "C-39 - Roofing" among its classifications (what C-39 covers). A general building license alone isn't the same thing. Check the workers' compensation status too, and keep a printout with your contract.

Who issues the permit?

Inside city limits, Redwood City Building Inspection. Emerald Hills and some neighboring pockets are unincorporated, so San Mateo County issues those permits. The estimate should name the permit and who applies. Redwood City is in climate zone 3 (CEC), outside the zones that require a cool roof on a home reroof.

Questions worth asking every bidder

• Have you replaced roofs in my neighborhood, and in my HOA if I have one?
• How many layers are coming off, and what if you find rotted decking?
• Which underlayment and ventilation will you use?
• Do you have solar panels to remove and reinstall in scope? (solar guide)
• What does the warranty cover, and who backs it? (warranty guide)

Will a Redwood City roofer give me a price over the phone?

A careful one won't commit to a number without seeing the roof, the attic and the layers. For the factors behind a bid, read Redwood City roof replacement cost drivers; for your price, request the free estimate on this page.

How do rain, heat and fire zones play out in Redwood City?

NOAA's Redwood City station averages 19.0 inches of precipitation a year, 60% of it from December through February, and about 18 days a year reach 90 degrees (1991-2020 normals). Redwood City's highest rating on CAL FIRE's 2025 recommended map is High, with no Very High ground inside the boundary. Look up your own parcel on CAL FIRE's map.

More roofer guides on this site: San Mateo roofers, Daly City roofers, South San Francisco roofers, Burlingame, San Carlos & Belmont roofers, Pacifica & Half Moon Bay roofers.

More town guides: Foster City, Atherton, Menlo Park.