Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Replacement Across San Anselmo
Most San Anselmo homeowners replacing a roof want to know two things upfront: what it will cost and how long they’ll be dealing with construction noise. A full roof replacement in San Anselmo typically runs $12,000 – $28,000 for asphalt shingles on a standard single-family home, and most jobs finish in 2 – 4 days depending on decking condition and weather. Call (325) 246-5075 to schedule your free estimate.
San Anselmo sits in a pocket of Marin County where the morning fog burns off slower than in Fairfax to the west, and the afternoon sun hits roof slopes harder than the shaded valleys near Kentfield. We’ve replaced roofs on the hillside homes above Sir Francis Drake Boulevard and the flatter parcels near Red Hill Avenue, so we know which orientations age faster and where ventilation problems hide. Our crews serve San Anselmo from the Relay Home Co. Bay Area dispatch office, with live trackable arrival times and photo documentation of every phase.
Why Crestview Roofing Is San Anselmo’s Preferred Roof Replacement Company
We’ve earned our reputation in San Anselmo the slow way: by showing up when we say we will and billing the number we quoted. Homeowners here talk. A neighbor on Woodland Avenue refers us to someone on Tamalpais Avenue, and that person tells a friend in the Sleepy Hollow neighborhood. Word moves fast in a town this size, which is why we put every promise in writing.
Our response time to San Anselmo averages same-week scheduling for estimates, with most replacements starting within 10 – 14 days of contract signing. That’s faster than the county average because we keep GAF and CertainTeed materials stocked for common San Anselmo roof profiles, not ordered after you sign.
We also know the local quirks: San Anselmo’s mix of 1920s bungalows, mid-century ranch homes, and newer builds near the Seminary area means every roof replacement needs a different approach to decking, flashing, and ventilation. Our Roof Replacement team has handled all of them.
Asphalt Shingle Roof Replacement in San Anselmo
Asphalt Shingle Roof Replacement in San Anselmo accounts for roughly 80% of the jobs we do here, and for good reason. These roofs handle our wet winters and dry summers well when installed with proper underlayment and ventilation. Most San Anselmo homeowners need this service when their existing shingles hit 20 – 25 years, or after wind damage from the gusts that funnel down the Ross Valley. A typical asphalt shingle replacement in San Anselmo runs $12,000 – $22,000 for a 2,000-square-foot roof, including tear-off, decking inspection, and new architectural shingles from GAF or Owens Corning.
When to Replace vs. Repair
Shingles curling at the edges, granules filling your gutters, or daylight visible through the roof boards from inside your attic mean replacement is the smarter spend. We also check for soft spots in the decking, the plywood layer beneath your shingles, since San Anselmo’s fog-heavy mornings can trap moisture longer than drier inland climates.
Material Grades We Recommend
Standard three-tab shingles suit some budgets, but most San Anselmo homeowners choose architectural shingles for the thicker profile and 30-year warranty. We source GAF Timberline and Owens Corning Duration lines locally, so color availability and matching extras don’t delay your job.
New Roof Installation in San Anselmo
New Roof Installation in San Anselmo covers additions, detached ADUs, and full custom homes, especially in the infill areas near downtown and the newer construction pockets off Center Boulevard. Unlike a replacement, there’s no tear-off phase, but the installation demands are stricter: proper ice-and-water shield at valleys and eaves, continuous ridge ventilation for our humid mornings, and flashing details that match Marin County’s wind exposure requirements. A new roof installation in San Anselmo typically costs $14,000 – $28,000 depending on square footage, pitch complexity, and material choice. We also handle Roof Installation in San Anselmo for homeowners expanding their footprint.
ADU and Addition Expertise
San Anselmo’s push for accessory dwelling units means many homeowners need a new roof that ties into an existing structure without leaks or aesthetic clashes. We match shingle color, pitch, and fascia details so the addition looks original, not patched on.
Flat and Low-Slope Options
Some modern designs and garage roofs in San Anselmo call for flat or low-slope installation. We use modified bitumen and TPO membranes rated for ponding water, with tapered insulation to force drainage toward scuppers or internal drains.
Trusted Brands We Service in San Anselmo
We install and replace roofs using GAF, CertainTeed, and Owens Corning materials, kept in regional supply for fast turnaround on San Anselmo jobs. GAF’s Timberline HDZ line handles our wind exposure well, CertainTeed’s Landmark series offers color options that blend with the muted earth tones common in San Anselmo’s older neighborhoods, and Owens Corning provides strong warranty backing for homeowners who plan to stay put. We don’t push one brand; we match the material to your roof’s pitch, your home’s exposure, and your budget. Every option carries a manufacturer warranty plus our 365-Day Done Right Promise.
Common Roof Replacement Problems We See in San Anselmo Homes
- Fog-trapped moisture in Sleepy Hollow and hillside neighborhoods. Morning marine layer lingers on north-facing slopes above Sir Francis Drake Boulevard, accelerating shingle granule loss and rotting decking from the underside. We specify breathable synthetic underlayment and add ridge vents where original builders skipped them.
- Original redwood shake roofs past 40 years. Many homes near Tamalpais Avenue and the Seminary district still carry their original shakes, now brittle and often unmaintained. Full replacement with fire-rated asphalt shingles is usually required for insurance renewal.
- Poor valley drainage on mid-century ranch homes. The shallow-pitch ranches built in the 1950s and 60s around Woodland Avenue collect debris in valleys, leading to slow leaks that rot rafter tails before anyone notices water inside.
- Chimney flashing failure after winter storms. San Anselmo’s wind-driven rain tests the metal strips sealing chimney joints. We replace step flashing and install cricket diverters on wide chimneys to stop the recurring leaks we see every March.
Pricing for Roof Replacement in San Anselmo, CA
Roof replacement pricing in San Anselmo breaks down by scope, not guesswork. Most asphalt shingle replacements on standard 1,500 – 2,500 square foot homes run $12,000 – $22,000. Architectural upgrades add $2,000 – $4,000. Decking replacement, when the plywood beneath is rotted, runs $75 – $125 per sheet installed. Flat roof membranes on garages or additions typically cost $8,000 – $15,000 depending on insulation needs. New construction or complex pitches with multiple dormers push toward the $20,000 – $28,000 range.
What moves the number: roof pitch (steeper = more labor), layers of old roofing to remove, accessibility for our tear-off equipment, and whether your home sits on a tight hillside lot with limited staging room. We deliver a written line-item quote before any work starts. The price we give is the price on your invoice. No change orders unless you add scope. Call (325) 246-5075 for your free estimate.
We Also Serve Cities Near San Anselmo
Our crews work throughout central Marin County. We regularly replace roofs in San Anselmo and the surrounding communities of Fairfax, Kentfield, San Rafael, and Larkspur. Each area has its own microclimate and building stock, and we adjust materials and scheduling accordingly. If you’re unsure whether your address falls in our service radius, call and we’ll confirm.
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
Most San Anselmo roof replacements start within 10 – 14 days of estimate approval, weather permitting. We keep common shingle colors in regional stock, so material delays rarely hold up your job. Call (325) 246-5075 to check current scheduling.
Yes. We replace roofs throughout San Anselmo, including the Sleepy Hollow area, the hillside homes above Sir Francis Drake Boulevard, the flat neighborhoods near Red Hill Avenue, and the downtown corridor around Tamalpais Avenue. Each area has different access and slope challenges, and we’ve worked in all of them.
We do not offer same-day full roof replacement; that’s not realistic for a multi-day construction project. For storm damage or sudden leaks, we provide temporary tarping and emergency patching through our Roof Repair in San Anselmo service, then schedule full replacement once weather stabilizes. A live person answers our line 24/7 to dispatch emergency coverage.
San Anselmo pricing runs roughly parallel to Fairfax and San Rafael, slightly higher than Larkspur for jobs requiring hillside access equipment. Marin County permit fees and disposal costs are consistent across these towns. We quote your specific job, not a zip-code average.
Every replacement carries the manufacturer’s material warranty, typically 25 – 50 years depending on shingle grade, plus our 365-Day Done Right Promise on workmanship. If any covered repair fails within a full year, we correct it at no charge, including a free second visit. Both warranties are provided in writing before work begins.
Written by Dylan Pace, Owner at Crestview Roofing, serving San Anselmo since 2000.