Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Sebastopol, CA
Roofing in Sebastopol means working on two very different kinds of homes: century-old farmhouses with original wood shingles downtown, and modern vineyard estates on the ridges where wildfire ember risk shapes every material decision. The common thread is weather. Wet winters and hot, dry summers put real stress on flashing, underlayment, and decking, so the work here is rarely a simple tear-off. If you’re weighing roof repair, replacement, or an inspection on a Sebastopol home, call Brennan Roofing at (361) 320-9467 and we’ll walk you through what your roof actually needs – and put the price on paper before any work starts.
Why Sebastopol Homes Are Different
Walk the blocks around downtown Sebastopol or out Bodega Avenue and you’ll see late-1800s Victorians and farmhouses, many still carrying original cedar shingles or standing-seam metal. These roofs are steep-pitched and visible from the street, which means material choice gets noticed. A patch job that reads as a patch job is not acceptable on a historic home here. We treat those roofs accordingly: matching existing profiles, reusing salvageable material where it makes sense, and keeping the water barrier details (flashing at chimneys, dormers, and roof-to-wall intersections) correct the first time.
The climate does the rest. Sebastopol sits in the Russian River Valley, where atmospheric river events can dump inches of rain in a weekend. That water finds every dry-rotted seam and every cracked boot on a vent pipe. Meanwhile, months of summer UV and thermal cycling – hot days, cool nights – gradually break down the sealants and membranes that older roofs rely on. After a dry summer, the first big October storm is when Sebastopol homeowners discover what the sun has been doing to their roofing all year. The wildland-urban interface adds another layer: ember-resistant vents, Class A materials, and proper valley metal are not upgrades here. They’re baseline thinking for anyone with a home on the edge of open land.
Our Main Sebastopol Services
Most Sebastopol calls to Brennan Roofing come down to two things: a roof that is leaking or aging out, and a homeowner who wants a straight answer about whether to repair or replace. These three services cover the ground.
Roofing Company in Sebastopol
Full roof installation and replacement in Sebastopol means working with steep pitches, historic sightlines, and a real fire-safety conversation about materials. We install GAF, Atlas, and Boral lines, and we explain the tradeoffs plainly: weight, fire rating, lifespan, and how each looks from the curb on a 1905 farmhouse versus a modern custom estate. Every replacement starts with a written scope and a written price – decking, underlayment, drip edge, flashing, and all. See the full breakdown on our Roofing Company in Sebastopol page.

Roof Repair in Sebastopol
Sebastopol repair calls spike in October, when the first heavy rain exposes cracks that summer heat opened up. We chase leaks at the usual suspects first: flashing at chimneys and skylights, pipe boot seals, valley metal, and clogged or rusted gutters that back water under the eaves. Because so many homes here are older, we also check the decking around every penetration before we button anything back up. The repair is guaranteed in writing for a full year under the 365-Day Done Right Promise. Details on our Roof Repair in Sebastopol page.

Roof Inspection in Sebastopol
An inspection in Sebastopol is a condition report, not a sales call. We document what’s failing now, what will fail within a year or two, and what’s holding up fine. Given the area’s wildfire exposure, we also note ember entry points – gap vents, open soffits, combustible debris at roof-to-wall joints – because those are findings most generalists miss. You get the findings in writing, with photos, and a repair or replacement plan only if you ask for one. That process is laid out on our Roof Inspection in Sebastopol 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 Sebastopol
We install and repair roofing from GAF, Atlas, and Boral, and our crews are trained on each manufacturer’s installation specs – which matters when a warranty claim is on the line. Common parts like pipe boots, ridge caps, and standard flashing profiles are stocked in our local supply pipeline, so most Sebastopol repairs don’t wait on shipped material. See our brands for the full list.
Pricing for Roofers in Sebastopol, CA
| Service | Typical range in Sebastopol |
|---|---|
| Roof inspection (standard, no repairs) | $120 – $250 |
| Roof inspection with thermal imaging | $300 – $500 |
| Minor repair (sealing, 1 – 2 shingles, small flashing patch) | $450 – $850 |
| Moderate repair (repair ridge cap, replace old valley metal) | $650 – $1,800 |
| Major repair (structural decking replacement, material costs) | $2,850 – $5,600 |
| Roof tune-up or maintenance call | $250 – $550 |
| Roof replacement (national average, asphalt shingle) | $7,000 – $11,000 |
| Architectural shingle upgrade on a mid-size ranch | $12,000 – $17,500 |
Steep pitches, historic material matching, and fire-resistant upgrades push Sebastopol prices toward the upper end of those ranges. When we quote, the number goes on paper before any work begins and it does not move at the door. That’s the Garrison Standard, and it’s how Brennan Roofing operates on every job.
Neighborhoods We Serve in Sebastopol
Brennan Roofing covers all of Sebastopol and the surrounding rural roads where homes sit on larger lots with heavier tree cover and longer driveways. Our service area includes:
- Downtown Sebastopol (historic Victorians and farmhouses)
- Bodega Avenue corridor
- Graton and the Graton Road area
- Occidental Road toward Freestone
- Hessel and the western Sebastopol outskirts
Response time for a Sebastopol inspection or repair estimate is typically same-week, and we schedule around weather windows so an inspection happens when the roof is dry enough to actually evaluate.
Service Area – Cities Near Sebastopol
Beyond Sebastopol, our crews cover neighboring Sonoma County cities, including Santa Rosa, CA, Rohnert Park, CA, Cotati, CA, and Windsor, CA. Each of those areas has its own housing stock and climate patterns, but the standard on every job is the same: written price first, background-checked uniformed technicians on the roof, and a full-year written guarantee on the work.
Serving Sebastopol, CA - Our Local Coverage Area
We’re based in the Sebastopol 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 Sebastopol
Yes. When a Sebastopol roof replacement triggers a permit – which it usually does for structural changes or full tear-offs – we pull the permit and the job is inspected before we call it done. The permit process is part of the written scope, never an after-the-fact surprise.
For active leaks and storm damage, we prioritize Sebastopol calls and can usually have a technician out within a day or two, weather permitting. For non-emergency inspections and estimates, same-week scheduling is typical. Call (361) 320-9467 and you’ll get a live person, not a voicemail tree.
In some newer Sebastopol subdivisions, yes – HOAs can restrict material type and color, and we work with those rules from the start. On a replacement, we verify any HOA requirements before you commit to a material so you don’t pay for a roof the association later rejects.
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 Sebastopol Customers Say
"Ridge vent added and the attic is cooler. Fair price compared to the other two quotes."
- Vernon C."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.






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