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Serving Mill Valley, CA and surrounding areas. (628) 257-3534
Mill Valley Concrete handles driveways, patios, foundations, retaining walls, and 16 concrete services across Mill Valley and the surrounding Marin County area. Free on-site estimates. Permit handling included.
Mill Valley Concrete is a licensed concrete contractor serving Mill Valley, CA and 12 surrounding communities across Marin County and the greater Bay Area. We offer 16 concrete services - from driveways and patios to foundations and retaining walls - and handle every permit required by the City of Mill Valley. Whether your project is on a flat lot or a steep hillside, we have the experience to get it done right.
Cracked or uneven driveway? A new concrete driveway adds curb appeal and handles heavy traffic for decades.
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Muddy backyard every winter? A concrete patio gives you a dry, level outdoor space you can actually use year-round.
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Want the look of stone or brick without the cost? Stamped concrete delivers a custom finish that holds up in Marin's wet winters.
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Heaving sidewalk sections are a trip hazard and a liability. A new concrete path handles hillside terrain and tree roots the right way.
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Oil stains, cracks, and dust coming off your garage floor? A fresh concrete slab is the cleanest, most durable fix.
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Plain gray is just the starting point. Decorative concrete lets you match your home's character with color, texture, and pattern.
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Hillside soil moving toward your home? A concrete retaining wall stops erosion and protects your foundation.
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New construction or a slab replacement? We pour level, smooth concrete floors built for decades of daily use.
Learn MoreReach out by phone or through the contact form. Tell us what you have in mind - even rough details are fine at this stage. Someone from our office responds within 1 business day to schedule a free on-site visit at a time that works for you.
We visit your property in person to measure, check site conditions, and understand your goals. Hillside access, tree roots, and soil conditions all factor into the scope. You receive a written estimate that breaks down exactly what is included, with no vague line items or hidden fees.
Once you approve the scope, we pull all required permits before any work begins. Our crew handles demolition, base prep, forming, pouring, and finishing. After the concrete cures and the city inspector signs off, we do a final walkthrough with you to make sure everything meets your expectations.
We hold a valid California C-8 Concrete contractor's license and carry general liability and workers' compensation coverage on every project. You can verify our license status through the California Contractors State License Board at any time.
We visit your property in person before quoting - because hillside lots in Marin County need a real look, not a phone guess. Your estimate is written, itemized, and yours to keep with no pressure to book.
We are a locally owned business headquartered in Mill Valley. We know Marin County's hillside terrain, clay soils, permit process, and seasonal rain patterns - and we have been working on homes here since 2022.
Every call and form submission gets a response within 1 business day. We do not leave you wondering whether your message was received. When you call, you speak with someone who can schedule your estimate on the spot.
Ready to get started? Request a free estimate or call (628) 257-3534.
"We had a concrete driveway poured on a fairly steep lot and were nervous about the drainage. The crew came out to look at it before quoting, which no one else had done. The driveway handled the first winter rains without any pooling near the garage - exactly what we needed."
Maria K., Corte Madera - Concrete driveway building
"Our backyard patio had been a muddy patch for years. The crew finished the stamped concrete in two days and handled the permit on their end without us having to chase anyone. Six months later the surface looks exactly the way it did when they left."
David R., San Rafael - Stamped concrete services
"We needed a retaining wall replaced before the rainy season hit and they got it done on time. The estimate was clear, the crew cleaned up after themselves, and the wall made it through a very wet winter without any issues. Straightforward from start to finish."
Theresa M., Larkspur - Concrete retaining walls
We respond within 1 business day - no obligation, no pressure. Fill out the form and someone from our office will call you to schedule a free on-site estimate. We visit your property in person, measure the area, and give you a written quote before any work begins.
(628) 257-3534Mill Valley Concrete is based in Mill Valley, CA and serves 12 cities and communities across Marin County and the greater Bay Area - including Sausalito, San Rafael, and San Francisco. We offer same-week scheduling on most projects and can typically reach any service area within the same day for estimates.
Yes - rain on freshly poured concrete weakens the surface and can ruin the finish before it sets. That is why most Bay Area concrete work is scheduled between May and October. Good contractors monitor the forecast and have tarps ready if conditions change.
If any large tree sits within 10 to 15 feet of your project area, roots are a real concern. In Mill Valley's wooded neighborhoods, oaks and redwoods can push through a slab in just a few years. Assess root proximity before the pour, not after the damage appears.
The compacted gravel layer beneath a slab is what keeps it level as soil shifts with moisture and temperature. Marin County's clay soils expand when wet and shrink when dry. A shallow or rushed base is the leading cause of slab cracking within the first few years.
Concrete lasts 30 to 50 years in mild climates like Mill Valley'sand requires little ongoing maintenance. Asphalt needs resealing every few years and softens in summer heat. The Portland Cement Association provides detailed comparisons for homeowners evaluating both options.
Control joints are shallow lines cut into fresh concrete that give the slab a planned place to flex as temperatures change. Without them, concrete still cracks - just randomly across the surface. A finished slab with evenly spaced control joints is a sign of quality work.
Patching makes sense for isolated hairline cracks in an otherwise sound slab. But if cracks keep reopening, sections have shifted vertically, or the surface is crumbling in multiple areas, patching is a temporary delay. At that point, replacement is usually the more cost-effective long-term answer.
Mill Valley Concrete is a licensed and insured concrete contractor based in Mill Valley, CA, serving 12 cities across Marin County and the greater Bay Area since 2022. We hold a valid California C-8 Concrete contractor's license issued by the Contractors State License Board, and we carry general liability and workers' compensation coverage on every job.
Since 2022, we have completed concrete driveways, patios, retaining walls, foundations, and specialty work across Mill Valley and the surrounding communities - on hillside lots, narrow-access properties, and everything in between. Every project we take on is fully permitted through the relevant city building department.
Learn more about our team and experienceFour inches is the minimum for passenger cars. If you park an RV, heavy pickup, or equipment on the driveway, five to six inches - with steel reinforcement - is the right spec. Skimping on thickness is the most common reason driveways crack early.
Surface damage, cracking, and permanent ruts. The surface feels firm after 24 hours, but concrete does not reach load-bearing strength until around 7 days - and full strength takes 28 days. Keep vehicles off for at least a week after the pour.
Yes, within the first 30 days and then every 2 to 3 years. Sealing protects against moisture penetration, staining, and surface wear. The American Concrete Institute recommends sealing as a standard part of concrete maintenance.
Have a question specific to your property or project? Call (628) 257-3534 or send us a message - we answer concrete questions at no charge, and there is no obligation to book.
Mill Valley is a city of about 14,000 people tucked into the hills of southern Marin County, just north of San Francisco. The city sits at the base of Mount Tamalpais State Park, with homes carved into steep, heavily wooded hillsides on lots that present real challenges for any concrete or construction project. Narrow roads, tight access, and mature tree canopies are the norm rather than the exception.
The mix of housing in Mill Valley ranges from pre-1950 craftsman cottages and redwood bungalows in the older hillside neighborhoods to mid-century homes in the flatter Tam Valley area. Many properties are decades old and sit on foundations and flatwork that have not been updated since the original construction. The tree canopy - including large oaks and old-growth redwoods near Muir Woods National Monument - is a defining feature of the city's character, and also one of the leading causes of driveway and sidewalk damage from root intrusion.
Mill Valley receives close to 50 inches of rain per year, most of it falling between November and March. That seasonal rainfall, combined with clay-heavy Marin County soils that expand when wet and shrink when dry, puts constant stress on any concrete surface that was not designed and built with local conditions in mind. Homeowners who want to learn more about seasonal preparedness can visit the City of Mill Valley website for resources.
Mill Valley Concrete has been working on concrete projects throughout Mill Valleysince 2022 - on hillside driveways above downtown, in Tam Valley neighborhoods near Highway 101, and on properties that require pump trucks and detailed access planning just to get concrete to the pour site. If your home is in Mill Valley, we already know what to expect from your lot, your permit office, and your soil.
By appointment only, no walk-ins.
Mill Valley Concrete
74 Matilda Ave, Mill Valley, CA 94941
(628) 257-3534contact@millvalleyconcrete.comAlways open, 24/7.
Call (628) 257-3534 or submit the contact form for a free on-site estimate in Mill Valley and the surrounding Marin County area.
