
San Anselmo Concrete handles driveways, patios, foundations, retaining walls, and more for Marin County homeowners who want the job done right the first time.

San Anselmo Concrete is a locally owned concrete contractor serving homeowners across San Anselmo and 11 surrounding Marin County communities. We offer 16 concrete services - from new driveways and patios to foundations, retaining walls, and decorative finishes. Every project starts with a free in-person estimate and is built to handle the clay soils and wet winters this area is known for.

Cracked or uneven driveway? A properly poured concrete driveway handles Marin winters and heavy vehicles for 30-plus years.
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Backyard turns to mud every winter? A concrete patio gives you firm, usable outdoor space year-round, not just in dry weather.
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Want the look of stone or brick without the price or weed gaps? Stamped concrete delivers that finish on one solid, easy-to-seal surface.
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Lifted slabs and root damage are common on San Anselmo's older streets. A new sidewalk with proper base prep stays level for decades.
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Dusty, stained garage floor? A new concrete pour gives you a clean, hard surface that holds up to vehicles and workshop use.
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Plain gray isn't your only option. Decorative concrete adds color and texture to driveways, patios, and pool decks that complement your home.
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Hillside lots need walls that hold. Concrete retaining walls stop soil erosion and create usable flat space on sloped San Anselmo properties.
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Uneven or crumbling interior floors create real safety hazards. A new concrete floor installation levels things out and lasts for generations.
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Pool decks take constant wet-dry cycling. Concrete holds up without shifting, cracking, or becoming a slip hazard between seasons.
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Crumbling or uneven steps are a liability. New concrete steps are safe, solid, and can be finished to match the rest of your hardscape.
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Building a new structure? A correctly poured slab foundation sets the right starting point for everything built on top of it.
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A foundation that isn't built right shows up as cracks, settling, and moisture problems for years. We get it right the first time.
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Asphalt breaks down and needs frequent sealing. A concrete parking lot handles commercial traffic and lasts significantly longer.
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Footings are the first thing poured and the last thing anyone wants to redo. We set them correctly so the structure above stays stable.
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Settled or sunken sections cause drainage problems and structural stress. Foundation raising gets things level without a full demolition.
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Need to add a utility line, fix a section, or create expansion joints? Precise concrete cutting lets you work on one section at a time.
Learn MoreReach out by phone or through our contact form. We respond within 1 business day and schedule a free on-site estimate at a time that works for you. We come to your property, look at the site, and talk through what you need - no pressure, no guessing.
After the visit, you receive a written proposal that spells out exactly what work will be done, what materials will be used, and what the total cost will be. If permits are required, we handle the application. You review it on your own time and ask any questions before signing.
Our crew manages the entire project from demolition through final cleanup. We keep you informed at every stage, so you know when the crew is arriving, when the concrete will be poured, and how long to stay off the surface. When the job is done, you have a concrete surface built to last.
We carry a current California contractor license and both general liability and workers compensation insurance. You can verify our license in 30 seconds at cslb.ca.gov before signing anything.
We work in this town every week and know the clay soils, permit requirements, and hillside lot challenges that come with Marin County properties. Local experience makes a real difference.
Every estimate starts with a visit to your property. You get a written proposal that covers scope, materials, and price - before you commit to anything. No phone quotes, no surprises.
If the concrete cracks or fails due to workmanship or materials within the first year, we return and fix it at no cost. Every pour includes proper base prep and placed control joints.
Ready to get started? Request your free estimate or call us at (415) 604-1678.
"They came out for the estimate within two days and the crew started on schedule. The driveway pour happened in one day and the finish is clean - no rough spots, no uneven edges. It's been through two rainy seasons now and looks the same as it did when they finished."
David R., San Rafael - Concrete driveway building
"My backyard had clay soil that turned to mud every winter. The crew dug out the old ground, laid a real gravel base, and poured a patio that drains properly away from the house. I can actually use the backyard in January now, which wasn't possible before."
Maria T., Fairfax - Concrete patio construction
"I asked about stamped concrete for the front walkway and they walked me through three pattern options with samples. The installation took two days and the result fits the older craftsman style of the house. The permit was handled before they showed up - no back-and-forth on my end."
Karen M., Mill Valley - Stamped concrete services
We respond within 1 business day - usually sooner. There's no obligation to hire after we provide your estimate. Once you submit this form, someone from our office will call to schedule a free on-site visit so we can see the project and give you a written price.
(415) 604-1678San Anselmo Concrete is based in San Anselmo, CA and serves 12 communities across Marin County and the greater Bay Area, including San Rafael, Fairfax, Mill Valley, and Novato. We offer same-week scheduling for most projects and can typically reach any of our service areas within 30 minutes.
Concrete outlasts asphalt in the Bay Area's wet winters and dry summers. Marin's clay soils and temperature swings wear asphalt faster, while a properly poured concrete slab with a compacted gravel base can last 30-plus years with minimal maintenance.
Fresh concrete cannot be poured in rain or near-freezing temperatures without risking a weakened surface. San Anselmo gets most of its rain November through March, which means the practical pour window runs roughly from late April through October.
If cracks are wider than a quarter inch, span the full slab, or are accompanied by uneven sections, patching is a short-term fix. At that stage, the base underneath has usually shifted. A full replacement with proper base preparation is almost always more cost-effective long-term.
Base preparation means excavating, grading, and compacting a gravel layer before any concrete is poured. In Marin County's clay soils, this step is what keeps a slab from cracking or shifting. Skimping on it is the most common reason concrete fails within a few years.
Foot traffic can usually resume after 24 to 48 hours, but vehicle traffic should wait a full week. Full structural strength takes about 28 days. The American Concrete Institute's resources on curing explain the chemistry behind these timelines in plain language.
The Town of San Anselmo requires building permits for new driveways, patios, and sidewalks. Marin County also has stormwater rules that affect how much impervious surface you can add. Your contractor should pull these permits - the{" "} Town of San Anselmo Building Division {" "} handles residential permit applications.
For technical guidance on concrete installation and maintenance, the Portland Cement Association publishes detailed homeowner resources on everything from mix design to curing.
San Anselmo Concrete is a licensed and insured concrete contractor company based in San Anselmo, California, serving Marin County and 11 surrounding communities since 2022. We hold a current California contractor license issued by the California Contractors State License Board - the state authority that regulates contractor qualifications, bonding, and insurance requirements. Since 2022, we have completed concrete projects across 16 service categories, from residential driveways and patios to commercial parking lots and structural foundations.
Learn more about our team and approachThe slab has no stable foundation, so it shifts with every wet-dry soil cycle. Most early concrete failures trace back to inadequate base preparation, not the concrete itself.
Concrete expands and contracts with temperature changes. Control joints give it a planned place to flex so cracks run in straight, hidden lines rather than randomly across the surface.
A bid significantly below others almost always means something is being left out - thinner slab, no base prep, skipped permit, or uninsured labor. The cheapest pour often costs the most to fix.
The California Contractors State License Board lets you verify any contractor's license status, check for complaints, and confirm insurance coverage - all in under a minute. If you have questions about a specific estimate or scope of work, contact us or call (415) 604-1678.
San Anselmo is a small Marin County town of about 12,000 people, most of whom own their homes and have lived there for years. The town sits in a valley surrounded by hills, with Sir Francis Drake Boulevard running through the middle and connecting it to the rest of Marin County. The housing stock is mostly single-family homes, many of them built between the 1920s and 1950s, which means a lot of driveways, foundations, and walkways that have not had a serious look in decades.
Hillside lots are common throughout San Anselmo's residential neighborhoods, and many of them have drainage challenges that affect concrete longevity. The mature oaks and redwoods that make the streets shaded and beautiful also push roots under slabs over time, lifting sidewalks and cracking driveways. Any concrete work in this town needs to account for both the slope and the trees - a site visit before the quote is not optional, it is the only way to price the job accurately.
San Anselmo Creek runs through the center of town, and the Marin County Flood Control District has worked on the creek for years to address the flooding that has hit the downtown area multiple times since the 1982 and 2005 flood events. Homes near the creek and in low-lying parts of town face real drainage pressure every winter. Proper grading and base preparation are not extras here - they are what separates concrete that lasts from concrete that needs to be replaced within a few years.
We work on homes throughout San Anselmo, from the older Craftsman bungalows near The Hub downtown to the hillside properties above Sir Francis Drake Boulevard. If your property is on a slope, near the creek, or has original mid-century concrete that has never been replaced, call us for a free on-site estimate.
By appointment only, no walk-ins.
San Anselmo Concrete
196 Tunstead Ave
San Anselmo, CA 94960
projects@sananselmoconcrete.com
Always open, 24/7.
Call us or fill out our form today - we respond within 1 business day and provide a free written estimate after visiting your property.