Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Repair Across Sebastopol
Roof repair in Sebastopol usually means one thing: moisture got where it shouldn’t. Most asphalt-shingle repairs here run $380 to $1,200, and a thorough leak repair with decking replacement and new underlayment typically falls between $900 and $2,400. Our crews know the fog belt, the moss, and the older housing stock that make Sebastopol roofs different from anywhere else in Sonoma County. Call (945) 303-9821 and a live person answers, day or night. We give you a written price before any work starts, and every repair carries a written guarantee.
We know Sebastopol. We know the Craftsman bungalows downtown with their low-pitch north-facing planes, the ranch houses off Gravenstein Highway, and the converted barns out on the old orchard parcels. That familiarity means we show up already knowing what to look for before we climb the ladder.
Key takeaways:
- Most Sebastopol roof repairs cost $380 to $2,400, depending on what’s damaged.
- Written price before any work starts, written guarantee before we leave.
- Moss and fog-driven rot are the most common repair triggers in this town.
- We service Sebastopol, Santa Rosa, Rohnert Park, Cotati, and Windsor.
Why Tilehurst Roofing Is Sebastopol’s Preferred Roof Repair Company
Homeowners in a town like Sebastopol have usually been through it with roofers. A no-show on a Tuesday. A price that changed in the driveway. A patch job that leaked again before spring. That’s the reason this location operates the way it does. We answer the phone with a real person every time, 24 hours a day, and we show up in the window we gave you. Sebastopol customers tell us that alone sets us apart.
Tilehurst Roofing carries the Kingswell Guarantee, which has been backed by the Kingswell family of roofing companies since 2000. What that means for a homeowner on a rural road outside Cotati or a bungalow off Bodega Avenue is simple: the guarantee is written, not promised verbally, and it’s in your hands before our crew leaves the property. If the repair fails inside the guarantee period, we return and correct it at no charge. That’s the 365-Day Done Right Promise, and it applies to every repair we do in Sebastopol, no exceptions and no fine print.
Greg Holloway leads our repair work in and around Sebastopol. Our technicians are background-checked, uniformed, and local, so the person on your roof is someone we’d be comfortable sending to our own parents’ house.
Roof Leak Repair in Sebastopol
Roof leak repair in Sebastopol isn’t just about finding the wet spot on your ceiling. In this town, fog and moss mean the real source is usually somewhere upslope of the stain: a lifted shingle, a rusted vent boot, a valley that’s been holding pine needles and moisture for years. Sebastopol homeowners call us when they see a ceiling stain, when paint starts bubbling, or when they notice moss creeping up under shingle edges. A standard leak repair, including sealing and flashing work, typically runs $380 to $800. If we find decking that’s rotted through from years of trapped moisture, that climbs to $900 to $2,400 depending on how much sheathing needs replacement.
Finding the Source, Not Just the Stains
Water travels. A stain on a dining room ceiling often traces back to a damaged ridge cap or a valley clogged with redwood needles. We don’t patch the visible spot and call it done. We start at the roofline and work down, tracing the water path before we touch anything.
Decking Rot Underneath Moss
In Sebastopol, moss mats are often the original leak. They lift shingle edges, trap moisture against the decking, and rot the plywood beneath. You won’t see that from the ground. We pull back the shingles, inspect the decking, and replace any section that’s gone soft or dark. That’s the part that turns a $500 repair into a $1,500 one, and it’s why we write the price after we’ve seen what’s underneath, not before.
Emergency Roof Repair in Sebastopol
Emergency roof repair in Sebastopol usually starts with wind. A branch from a mature redwood comes down, or a January storm tears a section of flashing loose and water is coming through the kitchen. You can’t wait for a dry day because the dry days here don’t really arrive until May. Our crews tarp and board the damaged area to stop the intrusion, then come back with a permanent fix. Temporary tarp and sealing work runs $250 to $600; permanent repairs start at $450 and climb depending on what the storm compromised.
Wind Damage and Tree Limbs
Sebastopol’s tree canopy is part of why people live here. It’s also a roof hazard. Mature oaks, redwoods, and the remnant apple trees on old orchard lots all shed limbs in winter storms. We see punctured decking, broken tiles, and torn shingle courses.
Pouring Through the Ceiling
If water is coming through the ceiling, call us. We answer live, day or night. A crew gets to Sebastopol fast, stops the intrusion, and we write up the permanent repair scope with a fixed price before any more work happens.
Trusted Brands We Service in Sebastopol
We work with materials that suit the home, not what’s convenient for the truck. Our crews install and repair GAF, Atlas, and Tamko roofing systems regularly across Sebastopol, and those brand names matter when you’re matching shingles on a mid-century ranch or a Craftsman re-roof. We keep the common repair parts in our trucks for the brands Sebastopol homeowners have on their roofs, so a vent boot replacement or a section of shingles doesn’t turn into a two-week wait. If your roof has a brand we don’t stock that day, we get it from the manufacturer the next day, not a questionable secondhand supplier.
Common Roof Repair Problems We See in Sebastopol Homes
- Moss and lichen lifting shingle edges. The fog belt keeps roofs damp for months, and biological growth physically pries shingles upward, letting water in. This is the number one repair trigger in town.
- Rust at metal roof fasteners. Corrugated metal roofs on converted barns and agricultural outbuildings fail first at the screws: rust eats the washer, the fastener loosens, and the leak starts small and spreads. Patch jobs don’t fix it; fastener replacement and seam sealing do.
- Condensation on the underside of the roof deck. Poor ventilation in humid conditions rots sheathing from above, invisible until we open the roof. Ventilation gets scoped on every Sebastopol repair we do.
- Valley and flashing failures on older homes. The Victorian and Craftsman stock in the historic downtown has valleys and flashing patterns that newer tract homes don’t. Lifted flashing around dormers and chimneys is a recurring repair we know how to solve properly.
Pricing for Roof Repair in Sebastopol, CA
Most small to mid-size roof repairs in Sebastopol fall between $380 and $2,400. A vent boot replacement is $220 to $450. Flashing repair around a chimney or dormer is $350 to $700. A valley repair with new underlayment runs $600 to $1,100. Skylight leak repair comes in at $400 to $900, depending on the seal condition. The variable that matters most in this town is what’s hiding under the shingles: decking rot, saturated underlayment, or compromised ventilation. That’s why we scope the job on the roof before we write the number. You get a fixed written price, not a range that becomes a different number later. Call (945) 303-9821 to schedule a free estimate. There is no obligation and no pressure. You’ll know the number before you decide.
| Repair Type | Typical Range in Sebastopol |
|---|---|
| Vent boot replacement | $220-$450 |
| Flashing repair (chimney/dormer) | $350-$700 |
| Valley repair with new underlayment | $600-$1,100 |
| Standard leak repair | $380-$800 |
| Leak repair with decking replacement | $900-$2,400 |
| Emergency tarp and temporary seal | $250-$600 |
Rural Acreage and Sebastopol’s Older Outbuildings
A big part of Sebastopol sits outside the incorporated core, on former Gravenstein apple parcels where homes share the lot with barns, shops, and detached outbuildings. Roof repair out there carries different questions than a bungalow on Bodega Avenue. Sonoma County permitting, not the city of Sebastopol, often governs these properties, and the rules change depending on whether the building is a permitted residence or a pre-existing agricultural structure that predates current code. We scope for that before we quote.
Access changes the price. A barn roof repair on a rural lot off Barnett Valley or along Bloomfield Road might mean maneuvering equipment past a septic leach field, a wellhead, or mature fruit trees. We’ll flag that in the written quote. On a foggy morning in the Laguna de Santa Rosa lowlands, our crew repaired a north-facing Craftsman roof where continuous moss mats had lifted architectural shingles and trapped moisture against the decking for over a decade. We removed the growth, replaced saturated underlayment and a rotted section of decking, installed new ice and water shield in the valleys, and added a zinc ridge strip before nailing down new architectural shingles. The homeowner said the previous roofer had never mentioned ventilation or moss control. That gap is now standard in every Sebastopol quote we write.
We look at grading and drainage too. On rural lots, roof runoff can saturate the ground around a foundation if a gutter or downspout isn’t doing its job. A repair isn’t complete if the water leaves the roof and ends up pooling against the house. We include that check as part of our roof repair scoping in Sebastopol, not as a separate line item.
How Sebastopol’s Fog Belt Changes Roof Repair
Sebastopol sits in the coastal fog belt that funnels marine air inland through the Bodega Bay-Valley Ford corridor. Roofs here stay damp from November through April, and the marine layer pushes moisture in on summer mornings too. That’s a measurable difference, not a feeling: nearby Santa Rosa, seven miles east, gets meaningfully more drying sun. Local roofers consistently report that moss, lichen, and algae growth in Sebastopol is among the worst in Sonoma County.
Why this matters for repairs: the problem isn’t just cosmetic. Moss mats lift shingle edges, and water wicks underneath. Lichen roots into asphalt granule coatings. On a north-facing plane shaded by mature redwoods or old apple trees, you can get continuous moss thick enough to lift shingle courses and hold water against the decking for years. Zinc or copper anti-moss ridge strips have become standard on re-roofs here in how they aren’t in Petaluma or Santa Rosa. We scope for moss removal and ventilation on every repair we quote in Sebastopol. If your roofer doesn’t mention it, they’re missing the thing that’s eating your roof.
We Also Serve Cities Near Sebastopol
Our crews work throughout western Sonoma County. If you’re in Santa Rosa, Rohnert Park, Cotati, or Windsor, we can help there too. Our Roof Repair team schedules work across the whole area, and we’ll give you the same written-price guarantee. Learn more about our Sebastopol service area or call (945) 303-9821 to talk about your roof.
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 Repair in Sebastopol
Most simple roof repairs in Sebastopol, like replacing a vent boot, resealing flashing, or patching a few missing shingles, do not require a permit from the city or the county. Larger work, including replacing decking over a certain square footage or re-roofing an entire structure, may trigger Sonoma County requirements, especially on unincorporated rural parcels. We tell you at the estimate stage whether a permit applies to your specific repair. Call (945) 303-9821 and we’ll walk you through it.
Sebastopol roofs stay wetter for more of the year because marine fog funnels inland through the Bodega Bay-Valley Ford corridor. That means more moss and lichen growth, more trapped moisture against decking, and more hidden rot than Santa Rosa homes typically see seven miles east. Repairs here more often require moss removal, decking replacement, and ventilation work as part of a lasting fix.
Yes. We regularly repair corrugated metal roofs on barns, shops, and converted agricultural structures across Sebastopol’s rural parcels. The usual failure point is at fasteners where rust has eaten through the washer and loosened the seal. We replace the affected fasteners, seal and repair seams, and replace any panels that are too far gone. A typical outbuilding repair runs $500 to $1,800 depending on the extent. Call (945) 303-9821 for a written quote.
Ask if they’re going to inspect for moss and decking rot, not just patch the visible leak. Ask whether they’ll write the price before work starts. Ask what guarantee they’ll put in writing before they leave. Ask whether they’ll scope ventilation and drainage as part of the repair. Any competent Sebastopol roofer should be able to answer all four without hesitating.
Zinc and copper ridge strips release small amounts of metal that inhibit moss and lichen growth on shingles below. In Sebastopol’s fog belt, where moss growth is chronic and aggressive, these strips meaningfully reduce biological buildup, especially on north- and west-facing planes shaded by trees. They’re standard on our re-roofs here because the local conditions genuinely call for them.
Schedule Your Free Roof Repair Estimate in Sebastopol
You’ll get a written price before any work starts. You’ll get a written guarantee before the crew leaves. If the repair fails inside a year, we come back and fix it at no charge under the 365-Day Done Right Promise. Call (945) 303-9821 now. A live person answers, 24 hours a day, every day of the year.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Sebastopol and western Sonoma County.