Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
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Before
AfterFast, Reliable Roof Replacement Across Sebastopol
Roof replacement in Sebastopol typically runs $14,000 to $28,000 for a standard asphalt shingle roof on a 1,500 to 2,200 square-foot home, and most full tear-offs take five to eight working days from the first truck to the final inspection. That’s the honest range before we even look at your roof, because you deserve a real number before anyone climbs a ladder. Call (945) 303-9821 and we’ll give you a written, line-item price specific to your house, not a ballpark.
Sebastopol isn’t Santa Rosa, and it isn’t Petaluma. The fog that rolls through the Bodega Bay-Valley Ford corridor and settles into the Laguna de Santa Rosa lowlands changes how roofs fail here, how long they last, and what a proper replacement should include. Our Roof Replacement crews know which Sebastopol blocks hold late-Victorian bungalows with original shake, which ranch houses off Gravenstein Highway still carry first-generation composition shingles, and where the redwood canopy keeps a north plane damp for half the year. That local knowledge changes the spec, the price, and the outcome.
Key Takeaways
- Sebastopol re-roofs need anti-moss ridge strips and added intake ventilation that sunnier Sonoma County cities don’t routinely require
- Full tear-off prices in Sebastopol run $14,000-$28,000 for most homes, with architectural shingles on the upper end
- Every job gets a written price before work starts, a written guarantee, and a 365-day correction promise
- We stock materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral
- Call (945) 303-9821 anytime - a live person answers, 24/7
Why Tilehurst Roofing Is Sebastopol’s Preferred Roof Replacement Company
Tilehurst Roofing operates under the Kingswell family of roofing companies, founded in 2000, and every Sebastopol job runs on the same plain rules: we say the price before the work, show up in the window we gave, leave the property cleaner than we found it, put the guarantee in writing, and come back if anything fails. Those aren’t slogans. They’re the five commitments written into every contract we hand a homeowner on Bodega Avenue or Pleasant Hill Road.
Sebastopol homeowners call us because they’ve already been burned. A no-show from the last contractor. A price that grew by 20 percent at the door. A repair that leaked again before the first heavy rain. We hear those stories on a weekly basis, and the person calling usually wants two things: a number that won’t move and a phone that gets answered. Greg Holloway, who leads Tilehurst Roofing, built the Sebastopol operation around those two things first. The roofing skill was never the problem. Trust was.
Every call to (945) 303-9821 is answered by a live person. Not a voicemail tree, not a callback queue, not a “we’ll get back to you Monday.” Evenings, weekends, holidays. The crews working Sebastopol neighborhoods are background-checked and uniformed, so the person on your roof is someone you can identify and someone we’ll stand behind. When a Sebastopol homeowner asks about reviews, we point them to the written guarantees we’ve handed out in this town, not just star counts.
New Roof Installation in Sebastopol
New roof installation in Sebastopol means stripping an old roof to the decking, replacing any rotted sheathing, laying new underlayment and flashing, and finishing with shingles or metal matched to the house and the climate. We install new roofs on full remodels, additions, and houses where the existing roof has reached the end of its life. On most Sebastopol homes between 1,500 and 2,200 square feet, a full new asphalt shingle roof with tear-off runs $14,000 to $24,000.
Architectural Shingle Installation
Architectural shingles hold up better in damp, shaded conditions than the three-tab shingles still common on Sebastopol ranch houses. The laminated construction sheds water more efficiently, and the heavier mat stands up to the moss treatments this climate requires.
Flat Roof Replacement
Flat and low-slope roofs on mid-century wings and sunrooms in Sebastopol need different materials and different detailing than pitched roofs. Modified bitumen and single-ply membranes are common here, and the persistent fog means drain placement and edge flashing matter more than anything else.
Reroofing in Sebastopol
Reroofing in Sebastopol is what most homeowners actually need: the framing and structure are sound, but the existing roof has failed or is failing faster than it should. We remove the old roof, inspect what’s underneath, replace damaged decking and flashing, and install a complete new system. Reroofing a standard Sebastopol home typically runs $12,000 to $22,000, with architectural shingles and anti-moss details on the higher end.
Decking Inspection and Replacement
A reroof in Sebastopol almost always includes some decking replacement. The fog and redwood shade that keep moss alive also keep plywood and OSB damp for years, which means rot shows up only after the old shingles come off. We show you exactly what we found, and the replacement boards are priced per sheet in your original written estimate.
Drip Edge and Ridge Cap Work
Drip edge is the metal strip along the roof’s edge that keeps water out of the fascia board, and ridge cap is the shingle line that seals the roof’s peak. In Sebastopol’s wet winters, both fail earlier than they would in a dryer climate, so we inspect them on every reroof and replace anything marginal as part of the job, not as a separate add-on after the fact.
Trusted Brands We Service in Sebastopol
We’re not married to one shingle manufacturer, and that’s the point. Tilehurst Roofing installs materials from GAF, CertainTeed, and Owens Corning, plus IKO, Atlas, Tamko, and Boral, so the product fits the house. A Craftsman bungalow near downtown might take a CertainTeed architectural shingle with a copper ridge strip. A ranch house on a former apple-orchard parcel might do better with an Owens Corning product rated for heavy shade and high moisture. For Sebastopol customers, we hold stock locally for all seven brands, which means we aren’t waiting on a distributor when a re-roof runs longer than expected or a material comes up short.
Common Roof Replacement Problems We See in Sebastopol Homes
- Moss mats lifting shingles on north and west planes. Redwood-shaded bungalows and ranch houses grow moss thick enough to physically raise shingle edges and trap water against the decking for years. We often find soft sheathing only after the moss comes off.
- Failed wood shake and early composition shingles. Original shake roofs on late-Victorian and Craftsman homes, plus first-generation composition shingles from the 1960s and 1970s, fail fast under Sebastopol’s November-to-April damp. Water reaches the underlayment first, then the decking.
- Rusted corrugated metal on converted barns and outbuildings. Former apple-orchard parcels here often have old barns and sheds with corrugated metal roofing. Panels rust at the lap joints, and fasteners back out, causing leaks at penetrations long before the metal itself wears through.
- Inadequate ventilation. A roof that never dries never lasts. On many Sebastopol re-roofs we add intake ventilation at the soffits and balance it against the ridge vent, because the marine layer doesn’t give these roofs enough drying time on its own.
Pricing for Roof Replacement in Sebastopol, CA
Here are the numbers we actually quote in Sebastopol. A standard tear-off and re-roof with architectural shingles on a 1,500-square-foot ranch runs $14,000 to $19,000. The same scope on a two-story Craftsman with steep pitches and redwood shade runs $18,000 to $24,000. Full tear-offs on larger homes and homes with extensive decking rot or multiple roof planes can reach $28,000 to $34,000. Metal roofs for barns and outbuildings run $10 to $16 per square foot installed, depending on the panel profile and whether we’re replacing fasteners and flashing or just re-paneling. Every estimate is a written, line-item price you see before we start. No change orders appear out of thin air. Call (945) 303-9821 for a free estimate on your Sebastopol roof.
We Also Serve Cities Near Sebastopol
Our crews handle roof replacement across western Sonoma County, including Santa Rosa, Rohnert Park, Cotati, and Windsor. Each of those towns has its own roof conditions, and we spec each job for the actual house and site. If you live just outside Sebastopol, read more about our Sebastopol service area or call (945) 303-9821 and tell us where you are.
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 Roof Replacement in Sebastopol
Sebastopol re-roofs cost 10 to 20 percent more than the same house in Santa Rosa because of biological growth management. Our quotes for Sebastopol homes include zinc or copper anti-moss ridge strips, added intake ventilation, and the labor to remove and dispose of moss-heavy shingles plus damaged decking that the fog has kept damp. Santa Rosa’s seven-miles-east sun gives roofs a fighting chance to dry; Sebastopol roofs don’t get that, so the spec is different. Call (945) 303-9821 for an exact quote on your house - estimates are free.
If your roof has a north- or west-facing plane shaded by redwoods, fruit trees, or another house, yes, you almost certainly need zinc or copper anti-moss strips on a new roof in Sebastopol. The metal ions wash down the slope with rain and suppress moss establishment before it starts. On roofs with full sun exposure all day, strips may be unnecessary. We write anti-moss strips into the original estimate when the site calls for them, not as a surprise upgrade.
Under an old shake roof in downtown Sebastopol, we typically find moss mats that have lifted the shakes, underlayment that has been wet for years, and decking with soft or rotten sections along the eaves and at valleys. On several downtown re-roofs we’ve had to replace sheathing before laying new ice and water shield. The structure underneath is usually fine; the decking and flashing are the parts that fail.
We vent a Sebastopol roof by balancing intake and exhaust. That means adding or clearing soffit vents for intake, installing a ridge vent for exhaust, and calculating the net free ventilation area against the roof’s square footage. In the lowland fog, the goal is to keep the underside of the decking as close to outside temperature as possible so condensation doesn’t form. On barns and outbuildings, we often add gable-end vents instead of ridge vents, depending on the roofline.
Yes, we re-roof converted barns, sheds, and other outbuildings throughout Sebastopol’s former orchard parcels. These structures usually have corrugated metal roofing with rusted laps and failing fasteners, and the fix often means re-paneling and replacing the flashing at the penetrations. We’ll price the job per square foot in writing before we start, with a written guarantee that covers the full roof, not just the panels.
Need a number you can actually plan around? Call (945) 303-9821 for a free, written roof replacement estimate in Sebastopol. We’ll walk the roof, tell you what we find, and put the price in your hands before any work starts.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Sebastopol and western Sonoma County.