Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Petaluma, CA
Roofers in Petaluma work on a housing stock that shifts block by block: a 100-year-old Craftsman with original redwood gutters on one street, a 1960s ranch with a low-slope section on the next. Add in damp river-valley fog, moss that takes hold on north-facing slopes, and the city’s 2019 all-electric building code, and the job here is not the same as it is in drier inland towns. Call (361) 320-9467 and you’ll get a live person who can talk through what your particular roof needs.
Why Petaluma Homes Are Different
Petaluma’s climate does two things to roofs. First, the marine layer that rolls up the Petaluma River valley keeps shaded roof planes damp for months at a time, which is why we see so much moss and algae on north-facing slopes in neighborhoods like McNear and Cherry Valley. Second, atmospheric river storms hit hard and test old flashing and drainage in ways a dry summer never will. A roof that survives years of sun can fail in one wet week if its flashings were never upgraded.
The housing stock compounds this. Downtown Petaluma is dense with Victorians and Craftsman bungalows built before modern underlayment existed. Many still have original wood shake roofs and knob-and-tube wiring penetrations coming through the roof deck. Re-roofing those homes means careful flashing work around old electrical masts and, in the historic district, matching the look local preservationists expect. Out in the mid-century ranch neighborhoods, we more often find original tar-and-gravel roofs and gutters that were never sized for today’s heavier rain events.
And then there’s the all-electric code. Since 2019, new construction in Petaluma has to be built without natural gas infrastructure. That makes roofers think about solar-ready roof planes and how an all-electric HVAC system will vent, because the roofline decisions made today affect what equipment can be installed next year.
Our Main Petaluma Services
Most Petaluma homeowners call us for one of three things: a full roofing project, a repair on an existing roof, or an inspection before buying or selling a home. Each has its own page with the details.
Roofing Company in Petaluma
Full roof installation in Petaluma means working with the roof you actually have, not a generic spec sheet. On older downtown homes, that can mean custom-fabricated flashing to integrate original redwood gutters that preservationists want kept. On newer homes, it means planning a solar-ready roof plane that will work with the all-electric systems the city now requires. We write the price on paper before any work starts, and every installation is backed by our 365-Day Done Right Promise in writing. Roofing Company in Petaluma

Roof Repair in Petaluma
Roof repair in Petaluma is often about water finding a way through old flashing or around a vent boot that has not been touched in 30 years. The marine layer keeps things damp, so a small leak can become rot behind the fascia faster than homeowners expect. We identify the source, give you a written price before we start, and guarantee the repair in writing for a full year. If it fails within that period, we come back and make it right at no charge. Roof Repair in Petaluma

Roof Inspection in Petaluma
An inspection in Petaluma needs to account for moss growth on shaded planes, rust at flashing joints, and the condition of any original redwood gutter systems tied into the roof structure. Buyers in this market often face homes with 20 or more years on the existing roof, and knowing what you are walking into matters before you sign. We document what we find in plain terms and give you the findings in writing. Roof Inspection in Petaluma

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 Petaluma
We install materials from GAF, CertainTeed, and Owens Corning, among other manufacturer lines. Our brands page lays out the differences so you can choose without a sales pitch. If a Petaluma home needs a specific shingle color matched, we source it locally.
Pricing for Roofers in Petaluma, CA
| Service | Typical range in Petaluma |
|---|---|
| Minor roof repair (flashing, vent boot, small patch) | $425 – $850 |
| Flashing replacement & re-seal | $300 – $780 |
| Ridge cap repair or replacement | $250 – $650 |
| Roof leak investigation & diagnosis | $225 – $400 |
| Gutter cleaning with basic roof visual check | $185 – $350 |
| Full roof inspection (written report) | $300 – $500 |
| Roof replacement (asphalt shingle, full tear-off) | $9,500 – $20,000 |
| Roof replacement (standing seam metal) | $21,000 – $40,000 |
| Roof replacement (synthetic shake/slate) | $16,000 – $28,000 |
| Skylight replacement (deck-mounted, new flashing) | $1,200 – $2,600 |
What pushes a Petaluma price up? Historic district homes with custom gutter integration, steep pitches on Craftsman bungalows, and moss remediation before any new material goes down. Whatever the number is, you get it in writing before any work starts, and it does not move at the door.
Neighborhoods We Serve in Petaluma
We work across Petaluma, from the downtown historic core to the ranches and newer builds in the valley. Crews dispatch from the Bay Area office and serve the whole city.
- Downtown Petaluma (historic Victorians and Craftsman bungalows)
- McNear
- Cherry Valley
- West Petaluma
- East Petaluma / Adobe Creek area
Most Petaluma calls are scheduled within a few business days for non-emergency work, with the 24/7 live-answer line available for anything urgent.
Service Area – Cities Near Petaluma
Beyond Petaluma, our crews cover nearby Sonoma and Marin communities: Cotati, CA, Rohnert Park, CA, Novato, CA, and Boyes Hot Springs, CA. If you are not sure whether we cover your street, call the office and ask.
Serving Petaluma, CA - Our Local Coverage Area
We’re based in the Petaluma 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 Petaluma
For active leaks or storm damage, we schedule as fast as our crew map allows, because a damp Petaluma roof can rot behind fascia within weeks. For standard repairs and inspections, most appointments are within a few business days. Call (361) 320-9467 and you will talk to a live person who can give you a real answer.
Petaluma requires a building permit for full roof replacements, and the city’s all-electric code applies to any project that touches energy systems. We handle permits and inspections on the jobs we run, so you do not have to spend an afternoon at City Hall. Repairs under a certain scope usually do not require a permit, and we will tell you plainly which one yours is before you commit.
No. The price goes on paper before any work begins, and it does not move at the door. If we uncover something unexpected during tear-off, we stop, show you what we found, and give you a new written figure before doing anything else. That is part of The Garrison Standard we operate under.
Yes. We work the whole city, from the downtown historic core to McNear, Cherry Valley, and the newer east side. We also serve Cotati, Rohnert Park, Novato, and Boyes Hot Springs. If you are outside those areas, call and ask.
For a straight answer on your roof and a written price before any work starts, call Brennan Roofing at (361) 320-9467. Estimates are free, and a live person answers the phone.
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 Petaluma Customers Say
"Neat, quiet, and disciplined crew. Magnet swept the yard after."
- Tonya R."Replaced the underlayment and drip edge as well as shingles. Many roofers skip that. Everything was explained in writing."
- Barry F."Crew lead is a veteran and runs the job like it. Showed up at 7 sharp, tarped the garden, tore off the old roof, and had the new shingles on by the end of day two."
- Joe K.






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