West County town with apple orchard heritage, eclectic builds, and the highest rainfall around.
Sebastopol gets more annual rainfall than any other city we serve — typically 38 to 45 inches a year, compared to the high 20s in Sonoma or Petaluma — and that single climate fact reshapes every roofing decision in town. Architectural styles in Sebastopol run the full eclectic range, from the original turn-of-the-century farmhouses left over from the Gravenstein apple boom, to the 1970s redwood homes scattered through the hills west of downtown, to modern infill builds around The Barlow district. The common thread on most Sebastopol roofs is biological growth: moss, algae, and lichen colonize asphalt shingles fast in this climate, and we routinely see roofs with five years of remaining structural life that look terrible because no one's addressed the moss. Tree canopy makes it worse — Sebastopol has more shaded lots per acre than nearly anywhere in the county. Our recommendations here lean heavily toward algae-resistant materials, copper or zinc treatments at the ridge, and steeper-pitched designs whenever the existing structure allows.
Every service we offer, framed around the realities of Sebastopol homes and businesses.
Standing-seam metal is increasingly popular in Sebastopol precisely because moss and algae can't get a foothold on a smooth coated steel surface. We've done several Gravenstein Highway corridor and Bodega Highway homes in low-rib metal that handles the rain volume and looks right at home with the local aesthetic.
Learn more about metal roofingWhen shingles are the right choice for a Sebastopol property — typically the older Pleasant Hill and Burnett Street neighborhoods — we always specify algae-resistant (AR) lines with copper-impregnated granules and install zinc strips at the ridge. It's a small upfront cost that makes a real difference here.
Learn more about shingle roofingSebastopol's wet winters are hard on flashing and underlayment. We do a lot of step-flashing repair on the older redwood-sided homes, valley re-lining where moss has accelerated wear, and pipe-boot replacement on the post-2000 builds where the original boots are now cracked and leaking.
Learn more about roof repairOur Sebastopol inspections include moisture mapping in the attic — critical here, because slow leaks under a moss-covered shingle field can run for years before showing on the ceiling. We document everything in a written report you can hand to insurance or a buyer's agent.
Learn more about roof inspectionSebastopol has a growing mix of light commercial — restaurants and tasting rooms in The Barlow, professional offices off Petaluma Avenue, and agricultural buildings west of town. We install TPO and modified bitumen for low-slope sections and metal for steep portions.
Learn more about commercial roofingWe're a Healdsburg-based company, but we've worked west county long enough to understand the difference between a Sebastopol roof and a Santa Rosa roof. Eddy has been roofing in this part of Sonoma County for 15+ years. License #1101394, fully insured, and we pull permits through the City of Sebastopol Building Department for every project that requires one. Sebastopol homeowners tend to ask sharp, specific questions — we appreciate that and answer them directly.
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Specific answers for specific local concerns.
Yes. The City of Sebastopol Building Department requires a building permit for re-roofs and inspects at tear-off and final. Sebastopol's permit process is straightforward but typically takes 1–2 weeks for issuance — we handle the application and follow-up.
Sebastopol gets meaningfully more annual rainfall and has heavier tree canopy than most of Sonoma County, which keeps roof surfaces damp longer. Algae and moss thrive in those conditions. Algae-resistant shingles, copper or zinc strips, and annual cleaning all help.
It's not just cosmetic. Moss holds moisture against the shingle surface, accelerates granule loss, and lifts shingle tabs as it grows under them. Left for 5+ years, it can reduce a 25-year shingle's actual life to 15 years or less.
Sebastopol allows metal roofs throughout the city. Some historic-overlay properties have additional review, but most parcels are unrestricted. We confirm with planning before any project.
Sometimes — it depends on the existing structure. We can occasionally raise the pitch with a sleeper system on flat-roof additions, but full pitch changes on the main structure usually require an engineered redesign and aren't cost-effective on most homes.
Have a different question? Visit our Learning Center or contact us directly.
Talk directly to Eddy — call (707) 232-8622 or request a written estimate online.
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