Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterRoofers in Gilroy, CA
Roofing in Gilroy is different from roofing in San Jose or Morgan Hill, and the difference is measurable. Homes here sit in a high-wind corridor at the southern end of the valley, where summer temperatures regularly pass 100°F and overnight lows can drop 40 degrees or more. That daily expansion and contraction is hard on asphalt shingles, on sealants, and on flashing. We’re Brennan Roofing, and we work to The Garrison Standard: every job gets a written price before any work starts, every tech is background-checked and uniformed, and every repair or installation is guaranteed in writing for a full year. Call (361) 320-9467 if you want a straight answer about your roof.
Why Gilroy Homes Are Different
Much of Gilroy’s housing stock is tract development from the 1980s through the early 2000s, and a large share of those composition shingle roofs are now 20 to 35 years old. In the older subdivisions, it’s common to find the same builder’s roof design repeated block after block, which means when one roof on a street fails, neighbors on that same street often need the same fix within a season or two. We plan our Gilroy schedule around that reality.
The climate punishes roofs here in a way coastal towns never see. Gilroy’s inland position gives it hotter summers and colder winters than the rest of Santa Clara County. Strong afternoon winds funnel through the valley most months, and occasional November freezes stress sealants and flashing before winter rain even begins. The area also sits near active fault lines, so roofing work must be braced and fastened to seismic and high-wind standards. That means the underlayment spec, the fastener pattern, and the flashing details all have to be thought through differently than they would be in Campbell or Los Gatos.
Our Main Gilroy Services
Three services cover nearly every call we take in Gilroy. Each has its own page with pricing, process, and the specific ways Gilroy conditions shape the work.
Roofing Company in Gilroy
Full roof replacement in Gilroy means tearing off the old system, inspecting the decking underneath, and rebuilding with materials rated for extreme UV exposure and wind uplift. We walk you through the trade-offs between architectural shingles from GAF or CertainTeed, explain what drip edge and underlayment actually do, and hand you a written price before the first nail goes in. No guesses, no change at the door. Learn more on our Roofing Company in Gilroy page.
Roof Repair in Gilroy
Most Gilroy repairs we see involve failed flashing around chimneys and vents, cracked shingles from thermal cycling, or lifted edges from valley winds. A repair here is not just patching the visible damage; it’s checking the surrounding area for the same stress because Gilroy roofs tend to fail in patterns. Every repair carries our 365-Day Done Right Promise in writing. If it fails within a year, we come back at no charge. Full detail on our Roof Repair in Gilroy page.
Roof Inspection in Gilroy
Given the number of 20-plus-year-old roofs in Gilroy’s tract neighborhoods, a roof inspection is the cheapest way to get ahead of a leak before it becomes water damage. We document shingle granule loss, flashing condition, sealant cracking, and ventilation, then give you a written report with photos and straight answers. No scare tactics. If something needs attention, you’ll know exactly what it is and what it costs. See our Roof Inspection in Gilroy page.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Gilroy
We install and repair systems from GAF, Atlas, and Boral, among others. Our Gilroy crews keep common replacement parts and sealants stocked locally, so a standard repair rarely waits on a parts order. See our brands for the full list and what each line is best suited for.
Pricing for Roofers in Gilroy, CA
| Service | Typical range in Gilroy |
|---|---|
| Asphalt shingle roof replacement (per square) | $360 – $560 |
| Architectural shingle upgrade (per square) | $450 – $700 |
| Flat roof replacement (per square) | $700 – $1,200 |
| Roof decking repair or replacement (per sheet) | $95 – $150 |
| Flashing repair or replacement | $300 – $700 |
| Underlayment replacement (per square) | $80 – $140 |
| Minor shingle repair | $250 – $500 |
| Roof inspection | $150 – $350 |
| Skylight replacement | $800 – $2,000 |
What pushes price up in Gilroy? Two things. First, the age of the decking: in 20-to-35-year-old tract homes, rotted decking sheets are common once the shingles come off, and that’s a per-sheet cost. Second, the wind-uplift fastening standard required here means a heavier fastener schedule than a coastal job. Whatever the final number, it goes on paper before any work starts, and it does not move at the door.
Neighborhoods We Serve in Gilroy
We cover all of Gilroy, from the west-side two-story homes off Miller Avenue to the older downtown stock near Sixth Street and the newer subdivisions on the north side. We also handle rural properties east of 101 where wind exposure is often sharper. Response time across the Gilroy area is typically next-day for inspections and repair assessments.
- Eagle Ridge
- Las Animas
- Downtown Gilroy
- Sunrise
- North Gilroy
Service Area – Cities Near Gilroy
Our Gilroy crews also cover the surrounding South Valley communities. We work in San Martin, CA, Morgan Hill, CA, and north toward Los Gatos, CA and Campbell, CA. If you’re in one of these communities, call (361) 320-9467 and we’ll tell you straight if we can get a crew to you this week.
Serving Gilroy, CA - Our Local Coverage Area
We’re based in the Gilroy area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roofers in Gilroy
Most Gilroy inspections and repair assessments are scheduled next business day. Replacement work is scheduled in sequence once the written estimate is approved. Call (361) 320-9467 and a live person will give you the current schedule. No voicemail, no automated system.
Yes, the City of Gilroy requires a building permit for roof replacement, and roofing work must meet current California Building Code including high-wind fastening standards. We handle the permit paperwork and schedule the inspection. It’s part of the job, not an add-on.
Many Gilroy subdivisions have HOAs with specific material and color requirements. We’ll work from your HOA’s architectural guidelines and help you file whatever documentation they need before work begins, so there are no surprises after the roof is on.
If your roof is showing its age or you’ve found a leak in Gilroy, call Brennan Roofing at (361) 320-9467 for a free estimate. You’ll get a written price before any work starts, and a live person on the phone every time you call.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Gilroy Customers Say
"They gave me a warranty in writing and stood behind it."
- Irene G."Quality work and clear communication. Rain pushed the start by two days, which is fair, but we were hoping to be done sooner."
- Cathy N."Storm took off a section of shingles. They were here next morning to tarp it and finished the repair that week."
- Elaine D.