Santa Clara County
Roof replacement
in the South Bay
Santa Clara County's roofs are mostly 1960s and 70s tracts, Eichlers and tile, and every city we checked is in climate zone 4, where a reroof generally needs a rated cool roof. We explain costs, San Jose's online permit and the cool-roof rule, then connect you with an independent, licensed C-39 roofer.
Every roofer we work with is licensed, insured and highly reviewed by Bay Area homeowners.
- Licensed and insured
- Active C-39 license, checked on CSLB
- Full replacements and reroofs
- Free written estimates
Get a free quote
An independent, licensed roofer will contact you to schedule an inspection.
Thanks, we got it.
A licensed roofer will contact you to schedule an inspection. If water is coming in now, put a bucket under the leak and keep people away from sagging ceilings.
- 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
Who does the work?
Licensed, insured and well reviewed. We only refer roofers we'd hire ourselves. Your request goes to an independent contractor focused on full roof replacements in the South Bay.
- Licensed and checked. An active California C-39 roofing license, with a contractor's bond and workers' compensation on file with the Contractors State License Board. We check the record before we send requests, and you can check it yourself.
- Replacement, start to finish. Inspection, tear-off down to the deck, sheathing repairs, underlayment and flashing, the new roof, cleanup, and the permit through final inspection.
- The materials Bay Area roofs need. Asphalt shingle, metal and low-slope systems, with Class A fire-rated assemblies where your zone calls for them.
- Warranties in writing. Your written contract should spell out the manufacturer's material warranty and the roofer's own workmanship warranty before any work starts.
How getting a quote works
Three steps. You stay in control of the decision.
Tell us about the home and the roof
Use the short form: whether you own it, roughly how old the roof is, your timeline and your city.
We pass your request to a vetted, licensed roofer
An independent C-39 contractor who replaces roofs in the South Bay receives your request.
The roofer inspects and prices the replacement
They schedule an inspection and give you a written estimate. It's free for homeowners, and you're never obligated to hire anyone.
What should I read first?
Plain-English roof replacement guides for South Bay homeowners, with sources on every page. See all guides.
What does a new roof cost in South Bay?
Tile, Eichlers, cool roofs and solar: South Bay cost drivers.
Should I repair or replace my roof?
Age, damage and the code limit on layers.
How long does a roof last in South Bay?
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 South Bay, city by city.
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 and timing your replacement.
What will a new roof cost for a house my size in the South Bay?
Turn your home's size into roofing squares and cost factors.
Why are so many South Bay roofs coming due?
Santa Clara County's median home was built in 1975. San Jose's dates to 1976, Sunnyvale's to 1976, Mountain View's to 1975, Santa Clara's to 1974, Cupertino's to 1973 and Palo Alto's to 1963 (ACS 2024 5-year).
San Jose alone issued 3,531 residential reroof permits in 2024 and 3,239 in 2025, its two busiest full years since at least 2010 (San José permit data). Tract roofs from the 1990s and 2000s are now on their last years.
| Area | Median year built | Owner-occupied homes |
|---|---|---|
| Santa Clara County | 1975 | 363,147 |
| Palo Alto | 1963 | 14,217 |
| Cupertino | 1973 | 12,741 |
| Santa Clara | 1974 | 20,456 |
| Mountain View | 1975 | 13,815 |
| San Jose | 1976 | 183,331 |
| Sunnyvale | 1976 | 26,388 |
Source: U.S. Census Bureau, American Community Survey 2024 5-year estimates (tables B25035 and B25003), via Census Reporter.
Which South Bay cities do you cover?
We cover Santa Clara County, from Palo Alto to San Jose, including:
Who runs this site?
South Bay Roof Replacement 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.
Updated .
South Bay roof questions
Do I need a cool roof in San Jose?
Usually, for a steep-slope reroof replacing more than half the roof. San Jose is in climate zone 4, where the 2025 Energy Code requires one unless an exception applies.
How much is a San Jose reroof permit?
Fees vary by valuation; see the City of San José's current building fee schedule, which also covers inspections.
Do you cover Gilroy and Morgan Hill?
This site covers Palo Alto to San Jose. Our Bay Area site covers all of Santa Clara County.
Ready for a written replacement estimate?
Request a quote and a vetted, licensed roofer who replaces roofs in the South Bay will follow up. Free for homeowners. No obligation.
Request my free quote