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Serving Mill Valley, CA and surrounding areas. (628) 257-3020
Custom Mill Valley Concrete & Masonry is a masonry contractor serving Corte Madera, CA, handling retaining wall construction, foundation repair, and brick and chimney work on the area's postwar homes and hillside properties. We have served Corte Madera and the surrounding Marin County towns since 2020, and we know how the town's clay soils, bay-side moisture, and aging housing stock combine to create the masonry problems homeowners deal with here.
Hillside properties on the western side of Corte Madera depend on retaining walls that can handle the clay soils and seasonal rainfall common throughout this part of Marin County - walls that fail here do not just affect your yard, they can move soil toward neighboring properties or your foundation. We build walls with drainage systems designed to manage water pressure through multiple wet seasons, not just the first one. Learn about retaining wall construction.
Corte Madera homes near the bay sit on some of the softest, most moisture-sensitive ground in Marin County - parts of the eastern neighborhoods were built on filled marshland, and foundations in those areas are more prone to settling and cracking than homes on firmer hillside lots. We diagnose the cause before starting any repair so we are solving the actual problem, not patching over a symptom.
Most Corte Madera homes from the 1950s and 1960s have original brick chimneys that are now 60 to 70 years old. The morning fog that rolls in off the bay keeps mortar and crown material perpetually damp, speeding up the breakdown that leads to water intrusion and structural concerns. We inspect, repoint, and repair chimneys so they are tight heading into the rainy season.
Postwar ranch-style homes throughout Corte Madera often have original brick features - planters, low garden walls, fireplace fronts, and decorative accents - that have aged but are still worth preserving. We match the original brick and mortar color so repairs do not look patched, and we address the underlying drainage or moisture issue when that is what caused the damage in the first place.
The clay soils throughout Corte Madera shift with the seasons, and that movement is hard on plain poured-concrete driveways that crack and heave over time. Paver driveways flex with minor ground movement rather than cracking through, and individual sections can be reset if the base settles unevenly - which matters on a hillside lot where the soil moves regularly.
Corte Madera's mild climate - warm, dry summers with only occasional fog - makes outdoor kitchens genuinely usable for most of the year. Masonry-built outdoor kitchens and barbecue surrounds hold up to the coastal moisture far better than wood or metal framing, and the right stone or brick material ties the space into the existing character of a Marin County property without looking out of place.
Corte Madera is a town of two distinct terrains. The western neighborhoods climb into the wooded Marin hills, where homes sit on steep, tree-covered lots with significant retaining walls, drainage systems, and masonry structures managing the slope. The eastern side of town is flat and sits close to San Francisco Bay - some of it built on land that was once marshland. Both environments create masonry problems, but they are very different problems. A hillside wall in the upper neighborhoods is dealing with soil pressure, clay-soil movement, and root intrusion. A foundation on a bay-side lot is dealing with soft, moisture-sensitive ground that compresses and settles over time. Getting the diagnosis right depends on knowing which part of town you are working in.
The majority of Corte Madera's homes were built between the 1940s and 1970s, which means a large share of the housing stock is now 60 to 80 years old. Original masonry features from that era - brick chimneys, concrete block foundations, garden walls, and planters - have been through decades of wet winters and dry summers. Marin County receives 35 to 40 inches of rain in a typical year, nearly all of it falling between November and March, and that concentrated moisture is the primary driver of mortar failure, retaining wall movement, and foundation cracking on older properties throughout the town. According to USGS research on expansive soils, clay soils like those common in Marin County are among the most damaging to foundations and hardscape in the country - and Corte Madera sits squarely in that zone.
Our crew works throughout Corte Madera regularly, and we pull permits from the Town of Corte Madera Building Division on masonry and concrete projects across both the hillside and flat-lot neighborhoods. We know the difference between what a job near Corte Madera Creek looks like - where drainage and soil settlement are the central concerns - and what a job up in the wooded hills above town involves, where retaining wall access and root intrusion are more often the issue.
Locally, the neighborhoods along Tamalpais Drive near the Village shopping district have a concentration of older ranch-style homes where original masonry features are still worth restoring. The hillside neighborhoods on the western edge of town, where lots are larger and more heavily treed, tend to have more retaining wall and drainage work. Homes on the flat eastern side, closer to Highway 101 and the Ring Mountain Open Space Preserve area, deal more often with foundation settling and cracked concrete flatwork from years of soil movement.
We also serve the neighboring communities to the north and south. Larkspur is just north of Corte Madera and shares many of the same soil and climate conditions. To the south, Tiburon is a short drive and a common second location for homeowners with properties or family in both towns.
Get in touch by phone or through the contact form and describe what you are seeing - a leaning wall, a cracked foundation, a chimney that needs work, or a new project you are planning. We respond within 1 business day and will set up a time to come out and take a look.
We visit the site before quoting anything - the slope, soil conditions, existing masonry quality, and equipment access all affect what the job actually costs on a Corte Madera property. You receive a written estimate that breaks down materials, labor, and permit fees so you know exactly what you are agreeing to. Cost questions are addressed here so there are no surprises once work starts.
For projects that need a permit from the Town of Corte Madera, we file the application and manage the review process - you sign where the homeowner signature is required, and we handle the rest. Permit approval typically adds one to three weeks to the start date, which we build into the timeline from the start so there are no delays once approval comes through.
The crew completes the work to spec, cleans up the site, and hauls away debris. You do not need to be home during the project but we stay reachable by phone throughout. At the end we walk through the completed work with you and confirm everything is right before closing out.
We work throughout Corte Madera on hillside lots and bay-side properties alike. Call us or use the form and we will respond within 1 business day.
(628) 257-3020Corte Madera is a small town of about 10,000 people in Marin County, positioned between San Francisco Bay to the east and the forested Marin hills to the west. The town takes its name from Corte Madera Creek, which runs through the flat eastern portion of town and empties into the bay. Residential neighborhoods range from the flat, postwar ranch-home streets near the Town Center mall and the Village shopping district on Tamalpais Drive to the hillside neighborhoods on the western edge of town where larger, treed lots climb toward the open space above. Most of the housing stock dates from the 1950s through 1970s, giving the town a mix of modest original ranchers and heavily renovated mid-century homes on both the flat and hillside portions.
The majority of residents are long-term homeowners - Corte Madera has a high owner-occupancy rate and home values consistently above $1 million. The town borders Larkspur to the north, where similar postwar housing stock and clay soil conditions prevail, and Tiburon to the south on the peninsula. The combination of aging homes, a dual-terrain geography, and Marin County's heavy rainy season makes masonry maintenance a regular part of homeownership in Corte Madera - particularly for the retaining walls, chimney crowns, and foundations that handle the most stress year to year.
Install block foundation walls built to code and last decades.
Learn MoreBuild a durable masonry outdoor kitchen for year-round entertaining.
Learn MoreWhether your home is on a hillside lot in the western neighborhoods or on the flat streets near the bay, we serve all of Corte Madera. Call us or send a message and we will follow up within 1 business day.