What kinds of homes are we talking about?
Sunnyvale's median home dates to 1976 and Mountain View's to 1975 (ACS 2024 5-year). Both cities have mid-century Eichler tracts, including Fairbrae in Sunnyvale and Monta Loma in Mountain View, ranch homes from the 1950s and 60s, and large numbers of townhomes and condos where an association may own the roof. Tell the roofer which you have before they visit.
Which credentials matter for a Sunnyvale or Mountain View reroof?
An active California contractor's license in the roofing class (C-39), confirmed on the CSLB lookup; current workers' compensation coverage if the contractor has employees; and a written home improvement contract that follows state rules on down payments and change orders (CSLB roofing guide).
Why is the cool-roof rule central here?
All of Sunnyvale and Mountain View is in climate zone 4 (CEC). A reroof replacing more than half of a steep-slope roof generally needs a rated cool-roof product, and low-slope Eichler roofs must meet a much higher reflectance target (CEC guide). The inspector may ask for the product label at final. A bid that doesn't name the product, or names one that isn't CRRC-listed, needs a second look.
Solar, HOAs and permits
- Solar: removal and reinstall should be in the same written scope (solar guide)
- HOAs: check CC&Rs for who owns the roof and what colors are allowed (HOA guide)
- Permits: Sunnyvale Building Division or Mountain View Building Division
- Eichlers: see our South Bay Eichler guide for foam vs. membrane
Where do I find Sunnyvale roof prices?
This page is about who replaces your roof. Price lives on our Sunnyvale cost guide, which covers what moves the number on local homes. We don't publish dollar figures, because a written estimate after an inspection is the only number that fits your roof.
How do rain, heat and fire zones play out in Sunnyvale and Mountain View?
At the Moffett Field station, the 1991-2020 normals show 13.4 inches a year, with 59% in the three winter months and roughly 9 days at 90 degrees or more (NOAA). Sunnyvale has no mapped hazard zones on CAL FIRE's 2025 recommended map. Mountain View has no mapped hazard zones on CAL FIRE's 2025 recommended map. Look up your own parcel on CAL FIRE's map.
More roofer guides on this site: San Jose roofers, Palo Alto roofers, Los Gatos & Saratoga roofers.
More town guides: Santa Clara, Los Altos.
Every roofer we work with is licensed, insured and highly reviewed by Bay Area homeowners.
Get a free replacement quoteFrequently asked questions
Is a cool roof required in Mountain View?
Usually, for a reroof replacing more than half the roof. Mountain View is in climate zone 4, where the Energy Code requires rated products unless an exception applies.
Who replaces the roof on a Sunnyvale townhome?
It depends on your HOA's CC&Rs. Many associations handle roofs as common elements; others assign them to owners.
Do Sunnyvale Eichlers need a special roofer?
Yes, one experienced with low-slope foam or membrane systems and the low-slope cool-roof standard.
Sources
- CSLB: check a contractor's license
- City of Sunnyvale Building Division
- City of Mountain View Building Division
- Census ACS 2024 5-year: B25035 median year built
- CEC: climate zones by ZIP
- CEC: cool roofs, single-family
- NOAA
- CAL FIRE's map
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.