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Serving Corte Madera, CA and surrounding areas. (628) 212-4120
Your garage floor is cracking, sinking, or flaking apart. We pour reinforced concrete floors with proper base prep for Marin's clay soils so your surface stays level and intact for decades.
Garage floor concrete in Corte Madera means removing the old slab (when it is beyond repair), compacting and preparing the ground underneath, and pouring fresh reinforced concrete - most residential jobs take one to two days of active work, with the floor ready for foot traffic within 24 hours and vehicle use after about a week.
Most homeowners contact us after years of patching cracks that keep coming back, or after noticing the floor has started to feel uneven underfoot. In Corte Madera, progressive cracking usually traces back to the clay-heavy soils shifting through the wet and dry seasons - patching alone cannot fix that. If your home also has interior concrete surfaces that need attention, our concrete floor installation service handles those projects as well.
We provide a free on-site estimate for every garage floor project. We assess the existing surface, check the condition of the soil below, and give you a written price before anything is scheduled - no surprise costs once work begins.
If you have patched cracks before and they have returned - or if you notice new ones appearing each year - the floor is signaling an underlying problem. In Corte Madera's clay soils, this kind of progressive cracking typically means the ground beneath the slab is shifting seasonally, and patching alone will not stop it from spreading.
When the top layer of concrete starts to chip off or the surface feels rough and crumbly underfoot, the concrete is breaking down from the inside out. This is especially common in older Corte Madera homes where the original pour may have been thinner or lower quality than current standards - once spalling begins, it accelerates.
A properly installed garage floor slopes slightly toward the door so water runs out. If puddles form in the center or along the back wall after rain or washing your car, the floor has either settled unevenly or was never graded correctly. In a wet Marin winter, standing water in the garage accelerates deterioration and creates a slip hazard.
If you can feel a rise or drop when you walk across the floor, or a car parked inside sits visibly tilted, the slab has moved. This kind of settling is common in older Corte Madera homes built on clay-heavy ground and typically means the base beneath the slab has shifted or eroded enough that replacement is more practical than repair.
Every garage floor project starts with a thorough assessment of the existing surface and the ground beneath it. If the old slab is being replaced, we handle full demolition and haul-off - you do not need to arrange disposal separately. We then grade and compact the subgrade, lay a stable base, and pour a four-inch reinforced slab with control joints cut to guide any future cracking to planned locations rather than random ones.
For homes in lower-lying areas of Corte Madera near the bay, we test for moisture before recommending a finish and can place a vapor barrier beneath the new slab to block moisture from below. Homes near the bay deal with higher ambient humidity and occasional groundwater intrusion - a vapor barrier is a modest cost that significantly extends how long the floor and any coating on top of it hold up. For interior concrete floors elsewhere in the home, our concrete floor installation service covers those projects. If you are also planning a new concrete driveway, both jobs can often be coordinated to reduce mobilization costs.
The American Concrete Institute sets the standards for slab thickness, control joint spacing, and mix design that define quality residential concrete work. We follow those standards on every job, and we pull the required Marin County building permits for full replacements so your project has a clean inspection record.
Best for floors with widespread cracking, settling, or spalling where patching is no longer a cost-effective option.
Best for floors that are structurally sound but have a worn or pitted surface that needs a fresh, clean appearance.
Best for homeowners who want a polished, easy-to-clean surface that resists oil stains and moisture after the new slab is poured.
Best for homes in low-lying or bay-adjacent areas of Corte Madera where groundwater intrusion is a recurring concern.
A large share of Corte Madera's homes were built between the 1940s and 1970s, which means many existing garage floors are 50 to 70 years old. Floors from that era were often poured thinner than current standards, without planned control joints, and with rebar that has since rusted and expanded - causing the surface to crack and heave. If your home was built before 1980, a full replacement is almost always more practical than repeated patching.
The town also sits on clay-heavy ground that shifts with Marin's wet and dry seasons. Corte Madera averages significant seasonal rainfall, with most of it falling between November and April - which limits the practical window for concrete work to roughly May through October. Scheduling early in spring before the summer rush closes gives you the most flexibility. Homeowners in Mill Valley and Larkspur face the same soil and scheduling conditions, and we serve both communities regularly.
For homes in the flat, bay-adjacent neighborhoods of Corte Madera, moisture coming up through the ground is a real consideration. Higher ambient humidity and occasional groundwater near the bay can cause coatings to bubble and peel if the surface is not properly prepared. We assess each site individually and recommend appropriate moisture management before the pour, including vapor barriers where warranted. Homeowners in nearby Sausalito face similar conditions along the waterfront, and we have handled that work consistently as well.
We come to your Corte Madera garage, inspect the existing floor and the soil condition, measure the space, and give you a written price. We reply to all inquiries within one business day. The estimate is free and puts a real number in writing before you commit to anything.
If your project requires a Marin County building permit - common for full slab replacements - we handle the application. Permit processing typically adds one to two weeks before work can begin, so we factor that into your timeline upfront rather than surprising you later.
On the first day, the crew removes the old concrete, hauls it away, and prepares the ground - grading, compacting, and setting the base. The pour typically happens on day two. The garage will be off-limits for at least 24 hours after the pour for foot traffic, and about a week for vehicles.
Before the crew leaves, we walk the finished surface with you and explain how long to wait before adding a coating, how to care for the floor in the first weeks, and what normal curing looks like. If anything does not meet your expectations, we address it before we pack up.
Free written estimate. We handle permits. No surprise costs once work starts.
(628) 212-4120Full slab replacements in Marin County require a building permit, and skipping that step creates real problems when you sell your home. We submit the application, coordinate with the building department, and make sure the finished work passes inspection - you never have to deal with the permit office yourself.
The clay soils throughout Corte Madera move with the seasons, and a slab poured without proper base compaction will crack and settle no matter how good the concrete is. We compact the subgrade and set a stable gravel base on every pour - it is the step that determines whether a floor lasts 5 years or 30.
We have been pouring concrete in Corte Madera and across Marin County for years and have direct experience with the soil conditions, building department requirements, and scheduling windows that affect every garage floor project in this area. Local knowledge is not a slogan here - it affects how we plan and execute every job.
We assess your floor and the condition of the ground beneath it before giving you a number. The price you agree to is the price you pay - no upcharges after the crew is already on-site. The California Contractors State License Board requires all contractors doing this work to hold a current license; ours is active and verifiable.
Every one of these commitments comes from working in the same neighborhoods, with the same local conditions, job after job. When something does not look right on a job, we address it before we leave - not after you have to call us back.
Interior concrete floors for living spaces, utility rooms, and additions - poured and finished to your specs.
Learn moreReinforced driveway slabs built with proper base prep and permitted through the Town of Corte Madera.
Learn moreThe dry-season booking window fills fast - reach out now and we will get a free estimate on your calendar before summer schedules close.