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Serving Mill Valley, CA and surrounding areas. (628) 257-3020
Custom Mill Valley Concrete & Masonry is a masonry contractor serving Tiburon, CA, specializing in stone veneer installation, retaining wall construction, and chimney repair for the peninsula's steep hillside homes and bay-front properties. We have served Tiburon and the surrounding Marin County towns since 2020, and we understand the specific demands that salt air, hillside soils, and mid-century construction place on masonry here.
Tiburon homes on hillside lots often have concrete retaining walls and plain stucco exteriors that are structurally sound but visually unfinished - stone veneer transforms those surfaces while adding a layer of weather protection that holds up against the bay fog and salt air. We waterproof behind every installation so moisture from the bay does not work its way into your walls. Learn about stone veneer installation.
Most Tiburon lots sit on hillsides where retaining walls do the work of keeping soil from moving downslope each rainy season. We build and repair walls with drainage systems designed for the area's steep grades and clay-heavy soils - not just a wall that looks right at installation but one that is still plumb five wet winters later.
Chimneys on Tiburon properties face daily exposure to bay fog and salt-laden air that accelerates mortar breakdown faster than it does on inland homes. Combined with the seismic activity that runs through Marin County, even a well-built chimney from the 1960s is likely overdue for an inspection and repoint before another winter season.
A large share of Tiburon's homes were built in the 1950s through 1980s on steep hillsides with post-and-pier or raised foundations. When the winter rains saturate those slopes and summer dries them out again, the soil movement repeats every year - and older foundations crack and shift in response. We assess what is actually causing the movement before recommending a repair.
Older Tiburon homes near Main Street and the Ark Row district have original brick and stonework that calls for matched mortar repairs, not standard cement patches that stand out visually and age differently from the surrounding material. We match mortar composition and color to the existing work so repairs settle in rather than announce themselves.
Tiburon hillside properties depend on well-designed stone and paver walkways to move safely between levels - wet winters and steep grades make slip-resistant surfaces a real safety concern, not just an aesthetic one. We build paths that drain properly, hold their grade, and stay usable year-round even when the fog rolls in off the bay most mornings.
Tiburon sits on a peninsula in San Francisco Bay, and most of the town's homes are built on hillsides that slope down toward the water. That combination of steep terrain, bay exposure, and mid-century construction creates a set of masonry demands you simply do not find in flat, inland communities. The hillside soils are clay-heavy and move with the seasons - swelling when the winter rains arrive in November, then shrinking and pulling back as the dry season sets in. That annual cycle puts pressure on foundations, retaining walls, and any masonry structure built into or against the slope. After a few decades of this, cracks appear and walls begin to shift.
The proximity to the bay adds a second layer of wear. Salt air and persistent morning fog off San Francisco Bay accelerate mortar degradation on chimneys, brick walls, and exterior masonry - the same joint that would hold for 25 years on an inland home may need attention in 10 to 15 years here. Tiburon also falls within a high fire hazard severity zone, which means exterior masonry choices have real implications for fire resilience alongside their visual impact. A contractor who understands all of this - the terrain, the climate, the building stock, and the Town of Tiburon's permit requirements - can solve the right problem the first time.
Our crew works throughout Tiburon regularly, and we understand the local conditions that affect masonry work here. We pull permits from the Town of Tiburon Building Division on projects across the hillside neighborhoods and know what to expect from the review process. Access is a real planning factor on many Tiburon lots - some properties are only reachable by carrying materials by hand, which affects scheduling and cost in ways that a contractor unfamiliar with this area would not anticipate.
The town's winding hillside streets, the waterfront neighborhoods near the ferry terminal, and the older buildings around Ark Row each present different masonry situations. Homes up in the hills tend to have the steepest retaining wall challenges and the most soil movement. Properties closer to Main Street and the bay see the heaviest salt-air exposure and often have older brick and stone details that need matched restoration work rather than generic patching. The views of Angel Island State Park may be one of the best in Marin County - the masonry on those homes should be in good enough shape to last as long as the view.
We serve the broader South Marin peninsula and regularly work in Corte Madera and Sausalito as well, so scheduling work that spans more than one town is straightforward.
Reach out by phone or through the contact form and describe what you are dealing with - a leaning retaining wall, a chimney that needs attention, stone veneer on a new project, or something else. We respond within 1 business day and will schedule a site visit at a time that works for you.
We walk the site in person before putting a number on anything - lot access, soil conditions, and existing masonry quality all affect the scope. You will receive a written estimate that breaks out materials, labor, and any permit fees, so there are no surprises once work starts.
For projects that require a permit through the Town of Tiburon, we handle the application and track the approval - you just need to sign where the owner signature is required. Permit review typically adds one to three weeks to the start date, which we factor into the project schedule from the beginning.
The crew completes the work to spec and cleans up before leaving. You do not need to be home while work is in progress, but we are reachable by phone throughout the job if a question comes up. Once the project is done, we walk through the work with you and confirm everything is as expected.
We serve homeowners throughout Tiburon and the surrounding South Marin peninsula. Call us or use the form below and we will respond within 1 business day.
(628) 257-3020Tiburon is a small town of about 9,000 people on a peninsula in southern Marin County, connected to San Francisco by the Golden Gate Ferry that departs from Main Street. Most of the town sits on steep hillsides that descend toward the bay, and the residential neighborhoods are a mix of mid-century ranch-style homes and larger hillside properties built out from the 1950s through the 1980s. The downtown area around Main Street and the historic Ark Row district - where old houseboats were pulled ashore and converted into permanent buildings decades ago - includes some of the oldest structures in the area, with the unique masonry and construction details that come with that age.
Home values in Tiburon are among the highest in the country, and most residents are long-term owner-occupants who maintain their properties carefully. The town borders Corte Madera to the north and is just across the bay from Sausalito by water. The mix of steep hillside lots, bay-front exposure, and a housing stock that is largely 40 to 70 years old makes Tiburon one of the more demanding places to do masonry work well - and one where getting it right matters most.
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Learn MoreWhether your project is a stone veneer installation, a retaining wall, a chimney repair, or something else on your hillside property, we are ready to take a look. Call us or send a message and we will follow up within 1 business day.