Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across San Anselmo
Roof replacement in San Anselmo usually means opening up a home built between 1920 and 1965 and finding something the last roofer never addressed. The cost for a full tear-off and replacement here typically runs $14,000 to $32,000 depending on pitch, material, and what we find under the old roof. We want you to know that number before we start, not after. Our Roof Replacement team works across San Anselmo, from Seminary to Sleepy Hollow, and we put every price in writing before any tear-off begins. Call (831) 228-3330 to schedule your free estimate.
Why Birchbark Roofing San Francisco Is San Anselmo’s Preferred Roof Replacement Company
We understand what a roof replacement in San Anselmo actually involves for your family. The crew walks through your gate, not around it. Shoe covers go on at the door, drop cloths run through the hallway, and every nail gets swept with a magnetic roller before we photograph the clean-up and leave. That’s the standard on every job, whether we’re replacing a mid-century rancher roof near Red Hill or a 1920s Craftsman in the flats.
Erik Lindgren runs our crews to treat your house the way we’d want our own treated. The 365-Day Done Right Promise backs every replacement. If something isn’t right, we make it right. That’s not a marketing line. It’s stamped on the job. We’ve seen too many San Anselmo homeowners sign a handshake quote and then watch the number climb once the old roof came off. With us, you see the exact line items before we order materials.
A live person answers our phones 24/7. When your roof is leaking ahead of a winter storm, you don’t get a voicemail tree. You get a real person who can schedule a crew to get eyes on your roof. For San Anselmo homeowners, that matters because our wet season doesn’t wait for a callback.
Styles & brands we work with
Asphalt Shingle Roof Replacement in San Anselmo
Asphalt Shingle Roof Replacement in San Anselmo means tearing off decades of layered composition and checking the decking before a single new shingle gets nailed down. Most of the 1950s and 1960s ranchers here still have their original shingles, often cupped, brittle, and missing granule coating. You’ll pay roughly $14,000 to $24,000 for a standard single-story asphalt replacement in San Anselmo, and a two-story Craftsman with a steep pitch runs higher because of safety staging and slower work.
What the tear-off usually finds
We frequently open roofs in the flats and find original skip sheathing with gaps wide enough to see daylight. That sheathing doesn’t meet current nailing standards for architectural shingles. We write a decking allowance into every asphalt replacement quote in San Anselmo so you know up front what it costs per sheet if we need to swap it. No surprises mid-job.
Ventilation and Title 24
Older San Anselmo homes rarely have balanced attic ventilation. A roof replacement that adds architectural shingles without addressing airflow shortens the shingle life and can void the manufacturer warranty. We calculate intake and exhaust requirements for your exact roof, and if Title 24 triggers an upgrade, you’ll know the cost before we start.
New Roof Installation in San Anselmo
New Roof Installation in San Anselmo usually falls into two camps: a full replacement on an existing home, or new construction on a lot where a house was torn down and rebuilt. New construction pricing here runs $18,000 to $32,000 for typical single-family homes, depending on roof complexity, pitch, and material. We work with builders throughout San Anselmo and also with homeowners who are replacing a roof that’s simply at end of life.
New construction coordination
On new builds, we coordinate with your general contractor on framing inspection, sheathing specs, and roofing underlayment before dry-in. We use materials from Owens Corning, Atlas, and IKO, and we order only what the plans specify. No substitutions without written approval. Your roof gets inspected before we load shingles, so there’s no rework later.
Historic replacement considerations
If your San Anselmo home sits in a designated heritage district, we handle the approval paperwork with the town before any roof comes off. That includes material samples, profile drawings, and color documentation. It adds time to the schedule, but it prevents stop-work orders that leave your underlayment exposed to winter rain. We’d rather wait for the board’s blessing than rush a tear-off.
Trusted Brands We Service in San Anselmo
We install and service asphalt shingles from Owens Corning, IKO, and Atlas, along with Boral clay and concrete tile. We keep common profiles and colors available for San Anselmo customers, which means faster turnaround when you’re matching a 1920s tile roof in the Seminary area. If your replacement calls for salvage tile, we source from specialty yards and verify every piece before it goes on your roof. When we stock local parts for San Anselmo homes, we’re stocking for the homes we see every week: Craftsman bungalows, Spanish Eclectics, and mid-century ranchers. That’s the difference between a generic roofing order and a replacement planned for this town’s actual housing stock.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in San Anselmo Homes
- Skip sheathing that fails inspection. Most 1920s and 1930s homes in San Anselmo were built with 1×6 skip sheathing, which doesn’t meet modern nailing patterns for asphalt shingles. When you open the roof, the building inspector may require sheathing overlay or replacement before shingles go on, and that’s a line item we write into every quote.
- Original clay tile with insufficient fastening. The 1920s Spanish Eclectics around Seminary often have original clay tiles nailed to skip sheathing with wire fasteners. Those fasteners don’t meet current wind-uplift code. A like-for-like swap without new fastening specs leaks at the first heavy storm and fails inspection.
- Low-slope rancher roofs with rolled composition over rotted plywood. Many 1960s ranchers in the flats have low-slope roofs where rolled composition was laid directly over plywood that’s now delaminated. If a quote skips decking inspection, the price can double once the roof is opened.
- Moss and algae on north-facing slopes. San Anselmo’s wet winters and valley shade promote moss on north-facing roof planes. Moss lifts shingle edges and traps moisture against the roof deck. We install zinc or copper strips on replacement roofs where moss is a recurring problem.
Pricing for Roof Replacement in San Anselmo, CA
Here’s what we tell homeowners at the kitchen table. A standard asphalt shingle roof replacement in San Anselmo runs $14,000 to $24,000. A larger two-story home or a steep-pitch Craftsman runs $22,000 to $32,000. Clay tile replacement on a historic home runs $30,000 to $55,000 depending on tile sourcing. A flat or low-slope roof replacement runs $12,000 to $20,000. What moves the number: roof pitch, decking condition, ventilation upgrades, and heritage approval requirements. You’ll see your exact number in writing before any work starts. Call (831) 228-3330 for a free estimate.
We Also Serve Cities Near San Anselmo
Our crews handle Roof Replacement in San Anselmo and regularly work in San Rafael, Richmond, San Pablo, and Pinole. If you’re in one of those neighboring cities and need a roof replaced, we bring the same written pricing, clean-up standard, and warranty coverage to your job. The San Anselmo crew keeps one standard: protect the house like it’s ours.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 San Anselmo
Not automatically, but often in practice. Title 24 requires balanced attic ventilation on new roofing work when the attic is accessible and the roof is being fully replaced. Most homes built between 1920 and 1965 in San Anselmo don’t meet current ventilation standards, so the inspector will usually flag it. We calculate your needed intake and exhaust before the job and include any upgrade in your written quote. You’ll know the cost before we start. Call (831) 228-3330 to have us assess your attic ventilation.
We don’t wait for a leak to turn into interior damage. When a heritage roof in San Anselmo is actively leaking, we install a temporary weatherproof membrane over the damaged area so the house stays dry while the architectural review board processes the application. This isn’t a finished roof; it’s protection. Once approval comes through, we remove the membrane and proceed with the full replacement. We’ve done this on multiple Seminary-area homes, and it keeps the interior dry without violating preservation rules. Call (831) 228-3330 if your historic roof is leaking.
We don’t overlay. Cupping means the shingle’s asphalt is degrading and the mat is curling, and overlaying traps that moisture against the roof deck. A full tear-off lets us inspect the plywood or skip sheathing underneath and replace anything that’s rot. On a 1950s rancher in San Anselmo, we typically find at least some decking that needs replacing. The tear-off also lets us address ventilation before the new roof goes on. You’ll get a written line-item quote that covers the decking allowance, so the price doesn’t move after we open the roof. Call (831) 228-3330 to schedule an inspection.
We already planned for it. Every roof replacement quote we write in San Anselmo includes a decking allowance that prices out skip sheathing replacement per sheet, so if we open your roof and find the original 1×6 sheathing isn’t compliant, the cost is already in your written quote. Some competitors quote a roof without that allowance and then hit you with a change order when the inspector requires sheathing overlay. Our allowance means you know the number before the first shingle comes off. The actual price for sheathing replacement is confirmed in writing before we order plywood. Call (831) 228-3330 for a quote that includes decking specifics.
North-facing slopes in San Anselmo catch less sun and hold moisture longer, which promotes moss and algae growth that eats at shingles from underneath. We spec a full ice and water shield on north-facing eaves and in valleys, and we often recommend a synthetic underlayment with higher water resistance on the entire north plane. South-facing slopes get the most UV exposure, so we focus on shingle selection that handles heat without curling. The two sides of your roof age differently here, and we treat them differently. Call (831) 228-3330 if you want us to look at both sides of your roof before you decide on replacement.
Written by Erik Lindgren, Owner at Birchbark Roofing San Francisco.