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 Larkspur
Roof replacement in Larkspur typically costs between $18,000 and $42,000 for a standard architectural shingle roof on a 1,800 to 2,400 square foot home, depending on decking repairs, pitch, and access. A full tear-off with structural framing work in the canyon neighborhoods usually lands on the higher end. We’re Tilehurst Roofing, a Kingswell family company founded in 2000, and we serve Larkspur homeowners with written pricing before any work starts, crews who arrive in the window we give, and a 365-Day Done Right Promise on every job. Call (945) 303-9821 to schedule a free estimate.
Why Tilehurst Roofing Is Larkspur’s Preferred Roof Replacement Company
Larkspur homeowners call us because they’ve already been burned once. They’ve had a roofer no-show, or quote one number and hand over a change order for two grand more once the old roof came off. We operate differently. Every Tilehurst Roofing job begins with a written price that includes the tear-off, underlayment, materials, and the specific work we know Larkspur homes require. That price doesn’t move unless we find something under the shingles we couldn’t see, and if we do, we show you the damage, explain the fix, and get your written approval before driving another nail.
Greg Holloway leads our team, and his approach follows The Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails. Our crews are background-checked and uniformed, so when you hear boots on your roof in the morning, you know exactly who’s up there. A live person answers every call, 24 hours a day, seven days a week. No voicemail. No callback queue. If you’ve got a question about your roof at 9:30pm on a Sunday, you’ll talk to a human being.
New Roof Installation in Larkspur
New Roof Installation in Larkspur often means something different than it does in a newer Marin subdivision. Many of the homes here were built between the 1890s and the 1950s, and their original framing was never designed for modern material weights or current code. A new roof on a Craftsman in Old Town or a mid-century ranch on the Greenbrae flats starts with a full tear-off, then an inspection of the decking, rafters, and fascia. We look for undersized rafters, failed sheathing, and improper ventilation before a single shingle goes down. If the structure is sound, we move to synthetic underlayment, drip edge, and architectural shingles. If it isn’t, we address it with a written change order before proceeding.
For new construction on a lot in Larkspur, the process is cleaner. We coordinate with the general contractor, install per plan, and pull all required Marin County permits. Roof decking replacement is standard on most Larkspur re-roofs because decades of trapped moisture, especially under redwood canopies, have already compromised the wood by the time the shingles fail.
Decking and Structural Upgrades
When we tear off an older Larkspur roof, we almost always find decking that needs replacing, particularly in Baltimore Canyon and other hillside neighborhoods. Rot spreads in sheathing before it shows in the shingles above. We price decking replacement per sheet, and that per-sheet rate is written into the contract so you know the unit cost before tear-off begins. If we find soft spots, you’re not getting a surprise line item with no explanation. The Kingswell Way means you know the number, you see the damage, and you approve the fix.
Fire-Rated Assemblies
Larkspur’s canyon neighborhoods fall within Marin County’s Wildland-Urban Interface fire hazard zones. That means a new roof in Baltimore Canyon must use Class A fire-rated materials. We install Class A architectural shingles from GAF and CertainTeed, paired with fire-resistant underlayment, to meet Marin’s code requirements. This isn’t an upsell. It’s the law for these properties, and it’s also the right call for a home sitting under a dense canopy of redwood and bay laurel.
Reroofing in Larkspur
Reroofing in Larkspur is rarely a simple matter of stripping old shingles and nailing down new ones. The homes in Baltimore Canyon, in particular, sit beneath redwood and bay laurel canopies that hold moisture against the roof surface for days after each storm. What that means in practical terms: a 15-year-old architectural shingle roof in Larkspur can look worn and moss-streaked on top while the decking beneath has already begun to rot. We approach every Larkspur reroof as a structural inspection wrapped inside a roofing job. If the sheathing is sound, we move forward. If it’s punky, we replace it and show you the rot before we do.
We replaced a wood shake roof on a 1940s canyon cottage in Baltimore Canyon where the redwood canopy had kept the original decking wet for decades. After tearing off the shakes, we found soft, punky sheathing and undersized rafters that had to be sistered before we could install new underlayment and Class A architectural shingles. We priced the framing repair and decking replacement in writing and got approval before proceeding. That’s the Tilehurst Roofing standard, and it’s the only way we work in Larkspur.
Framing Repairs and Code Triggers
Opening up an older Larkspur home often means finding undersized rafters that were adequate in 1940 but no longer meet the seismic and fire standards Marin County enforces today. Sistering rafters, replacing rotted ridge boards, and adding hurricane ties are common on Larkspur reroofs, especially in the canyon areas. These upgrades trigger code compliance reviews for fire-rated materials, and we handle the permit side of that with the county. The permit is pulled before we start, and the final inspection happens before we call the job complete.
Flashing and Drip Edge
Debris dams are a constant problem on Larkspur canyon roofs. Redwood needles and bay laurel leaves pile up at valleys and against chimney crickets, trapping water against the flashing until it fails. We see corroded flashing and damaged drip edge on nearly every older Larkspur roof we open. During a reroof, we replace all valley flashing, step flashing at sidewalls, and drip edge at the eaves. This is code-required work, but it’s also where the leaks actually start on Larkspur homes.
Trusted Brands We Service in Larkspur
We stock architectural shingles from GAF, CertainTeed, and Owens Corning at our San Francisco Bay Area warehouse, so Larkspur customers aren’t waiting on a distributor delivery when the tear-off reveals a problem. Material selection matters here. A shaded canyon roof in Baltimore Canyon needs an architectural shingle with strong algae resistance and a high wind rating. An exposed flat roof on a Greenbrae ranch calls for a different system entirely. We carry seven manufacturer lines, including GAF, CertainTeed, and Owens Corning, so the product fits your Larkspur home, not what happens to be in the truck.
Common Roof Replacement Problems We See in Larkspur Homes
- Moss and lichen growth under shingles: The redwood canopy in Baltimore Canyon keeps roof surfaces damp for days after a storm, and moss can penetrate beneath architectural shingles within 15 years. We routinely pull composite shingles that look acceptable from the gutter line and find soft, punky decking underneath.
- Failed flashing at valleys and penetrations: Debris dams trap water against step flashing and chimney crickets, corroding the metal until leaks start. This is the single most common source of interior water damage we trace in Larkspur homes.
- Undersized framing uncovered during tear-off: Many Larkspur canyon cottages and mid-century ranches were framed with rafters that no longer meet current seismic and fire code. Opening the roof reveals the structural upgrades that a permit triggers, and we handle those upgrades as part of the replacement.
- Wood shake roofs out of compliance: Many original Larkspur homes still carry wood shake or shingle roofs that are no longer legal under Marin County’s Wildland-Urban Interface fire code. Replacing them properly means a Class A assembly and, often, decking replacement beneath the shake.
Pricing for Roof Replacement in Larkspur, CA
A full architectural shingle roof replacement in Larkspur typically runs between $18,000 and $42,000. A simple roof on a Greenbrae ranch with sound decking and easy access may land around $20,000 to $26,000. A steep canyon roof in Baltimore Canyon with decking replacement, sistered rafters, and Class A fire-rated materials can push past $40,000. Flat roofing systems, common on a handful of mid-century Larkspur homes, range from $14,000 to $28,000 depending on the system. The price is driven by decking condition, roof pitch, material choice, and what we find once the old roof is off. We give you the tear-off price, the per-sheet decking rate, and the material price in writing before we start. Call (945) 303-9821 for a free estimate.
We Also Serve Cities Near Larkspur
We serve Larkspur and the surrounding Marin communities, including Kentfield, Corte Madera, San Rafael, and Mill Valley. If you need a Roof Replacement in any of these areas, our crews coordinate scheduling from the San Francisco Bay Area office and serve each city locally. Call (945) 303-9821 to set up a free estimate.
Serving Larkspur, CA - Our Local Coverage Area
We’re based in the Larkspur 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 Larkspur
The canopy keeps your roof surface damp for days after each storm, which accelerates moss growth, decking rot, and shingle failure. A roof in Baltimore Canyon may need decking replacement and structural work that an open-lot roof in Corte Madera would not. We inspect for this during the tear-off and price any repairs in writing before proceeding.
Yes. Marin County requires a building permit for roof replacements, and canyon properties in Wildland-Urban Interface zones must meet Class A fire-rated material standards. We pull the permit, schedule inspections, and handle the county paperwork. A final inspection is required before the job is complete.
In Larkspur’s canyon neighborhoods, overhanging redwoods and bay laurels keep roofs perpetually shaded and damp, and acidic needle debris compresses against shingles year-round. Moss penetrates beneath the tabs and rots the decking from below. A 15-year failure timeline that would be unusual in an open Marin neighborhood is common in Baltimore Canyon.
We write the unit price for decking replacement and structural repairs into your contract before tear-off begins. If we find rotted sheathing or undersized rafters, we show you the damage, explain what the code requires, and get your written approval before we touch it. You never get a surprise line item with no explanation.
Class A fire-rated architectural shingles from GAF or CertainTeed paired with fire-resistant underlayment meet Marin County’s Wildland-Urban Interface requirements and resist the moss and moisture Larkspur’s canyons throw at them. We specify the material based on your roof’s pitch, shade, and exposure. Call (945) 303-9821 for an exact quote, estimates are free.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Larkspur, CA with roof replacement and repair since 2000.