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Serving Rohnert Park, CA and surrounding areas. (707) 682-1628
Cracked slabs, spalling floors, and bare dirt under your garage are fixable. We pour new concrete floors that stay flat, dry, and durable on Rohnert Park's clay soils.
Cracked slabs, spalling floors, and bare dirt under your garage are fixable. We pour new concrete floors that stay flat, dry, and durable on Rohnert Park's clay soils.
Concrete floor installation in Rohnert Park starts with ground preparation — compacting the soil, laying a gravel base, and placing any required moisture barrier — before the pour. Most residential jobs take one to three days to complete, with the floor safe for light foot traffic within 24 to 48 hours.
Many Rohnert Park homes were built between the 1960s and 1980s on slab-on-grade foundations, and original concrete floors from that era often show their age: wide cracks, uneven sections, spalling surfaces, or moisture coming up through the slab. If you are replacing a worn-out floor or pouring a new one for an addition or ADU, getting the subgrade prep right is the most important part of the job. If you are thinking about adding finish options once the floor is in, our garage floor concrete service covers coatings, epoxy, and sealing options for garage applications specifically.
We handle permits, site prep, steel reinforcement, and the pour itself — and we can add a broom finish, smooth trowel finish, or a sealed surface depending on what the space will be used for. The end result is a floor that holds up to Rohnert Park's shifting clay soils and wet winters without cracking apart in the first few years.
Hairline cracks are normal and usually harmless. But if you can fit the edge of a coin into a crack, or if cracks run diagonally across a large section of the floor, the slab may be shifting or settling in a way that will not fix itself. In Rohnert Park, where clay soils expand and contract with the seasons, this kind of cracking is common in older homes and tends to get worse without intervention.
If part of your garage or basement floor feels lower than the rest, or if there is a visible lip where two sections meet, the ground underneath has likely shifted. This is a trip hazard and usually means the base layer was not properly prepared when the original slab was poured. Rohnert Park's clay-heavy soil makes this kind of settling more likely than in areas with more stable ground.
A chalky white film on your concrete floor means water is moving up through the slab from below. This happens when moisture in the soil wicks upward through the concrete, which is a common issue in older Rohnert Park homes where vapor barriers were not installed or have degraded over time. Left alone, this moisture can damage stored items and create conditions for mold.
If you are converting a garage to living space or building an ADU, you will almost certainly need a new concrete floor or a professional assessment of whether the existing slab meets current California standards. ADU floors have specific requirements for moisture barriers and minimum thickness in habitable rooms, and a contractor familiar with Rohnert Park's permit process can tell you quickly whether what you have will pass inspection.
Every floor we pour starts with the same foundation: proper soil compaction, a compacted gravel base, and steel reinforcement embedded in the slab. We set control joints in a grid pattern so any shrinkage cracking happens in predictable straight lines instead of randomly across the surface. The thickness we specify — typically four inches for residential applications, thicker for areas that will carry heavy loads — is always confirmed in your written estimate so you know what you are getting before work begins.
Finish options range from a standard broom texture to a smooth trowel finish, sealed gray concrete, or a polished surface with color. Broom finishes add slip resistance and work well in garages and utility areas. Smooth trowel or polished finishes suit basement conversions, ADU interiors, or any space where appearance matters. For garage applications, we also offer specialty coatings and sealers — those are handled under our garage floor concrete service, which covers the full range of garage-specific options including epoxy coatings. If you are adding a pool deck alongside a new floor for an outdoor living area, our concrete pool decks service can be scoped and built at the same time to keep the project on one schedule.
For ADU projects and garage conversions, we are familiar with California's habitability requirements and Rohnert Park's permit process for this specific type of work. We include vapor barrier installation when it is required, and we pour to the thickness and reinforcement spec that will satisfy the city inspector on the first visit.
Best for new garages, utility rooms, and residential additions where a durable, functional surface is the goal.
Designed to meet California habitability requirements with moisture barriers, proper thickness, and city permit coordination built in.
Suits homes with severely cracked or settled floors where the old slab needs to come out before a proper new pour can go down.
A good fit for workshops, home gyms, finished basements, or any space where a clean, attractive surface matters as much as durability.
Most homes in Rohnert Park were built between the 1960s and the early 1980s as part of the city's planned residential development. That puts the original concrete flatwork on the same aging timeline: slab-on-grade foundations and garage floors from that era were often poured without moisture barriers, sometimes without steel reinforcement, and to thickness standards that fall below what is required today. When those floors start to crack and settle, it is usually a combination of age and the area's clay soils doing what they do every wet season.
Rohnert Park has also seen a significant increase in ADU construction as California has pushed hard to add housing. Converting a garage or adding a backyard unit almost always involves a concrete floor component, and the city's requirements for habitable space are more involved than for a plain garage slab. We work on ADU projects across Rohnert Park and understand exactly what the permit process looks like at the City of Rohnert Park Development Services office. Contractors in Santa Rosa and Petaluma face the same ADU-driven demand, and we work across all three markets regularly.
Spring and fall are the best windows for concrete floor work in Rohnert Park, but interior and covered pours can happen year-round. If your project is in an open garage or a covered but exposed area, we plan the pour date and protective measures around Rohnert Park's weather to give the concrete the best possible curing conditions. Homeowners in Napa deal with the same Mediterranean climate timing, and the approach we use is consistent across the North Bay.
We reply within one business day. We will ask about the size of the space, what it is currently used for, and what you need the finished floor to do — so the estimate we give you is specific to your project, not a ballpark.
We visit your property to look at the existing floor or ground, check for drainage issues underneath, and confirm what prep work is needed. You receive a written quote that spells out thickness, reinforcement, finish type, and whether permit fees are covered.
The crew compacts the soil, lays the gravel base, places steel reinforcement, and sets the forms — then the concrete truck arrives and the pour happens in a single session. The area is off-limits for at least 24 to 48 hours after the pour.
We monitor the curing process and apply a sealer if that is part of your agreement. A city inspector signs off when required, and we do a final walkthrough with you to confirm the finished floor meets what was promised in the estimate.
Free on-site estimate. Written quote with itemized costs. Permits handled for you.
(707) 682-1628Rohnert Park's expansive clay soils require more subgrade prep than most online estimates assume. We compact the soil and lay a proper gravel base on every pour, which is the single most important thing that separates a floor that stays flat from one that cracks and settles within a few years.
Rohnert Park has seen strong ADU activity, and we have handled the city permit process for multiple ADU floor installations. We know what the Development Services office expects and how to get through the inspection process the first time, not after a re-pour.
We quote jobs at the real cost for Sonoma County labor and materials — not the national averages you find on home improvement websites. That means fewer surprises once work starts. Our itemized estimates cover thickness, reinforcement, finish, and permit fees so you know what you are agreeing to before a shovel hits the ground.
Every floor we pour includes welded wire reinforcement or rebar as standard, not an optional upgrade. In Rohnert Park's seismically active region and on clay soils that move seasonally, reinforcement is what keeps a crack from becoming a structural problem down the road. Verify our license on the{' '}<a href='https://www.cslb.ca.gov' target='_blank' rel='noopener noreferrer' className='underline text-primary'>California Contractors State License Board website</a>.
Whether you are replacing a cracked garage floor, pouring a new slab for an ADU, or installing a finished floor for a converted space, the process is the same: a site visit, a written estimate, proper ground prep, and a pour that is inspected and documented. That is the standard we hold ourselves to on every job in Rohnert Park.
The Portland Cement Association publishes guidance on concrete placement, curing, and joint installation for residential slabs. The California Department of Housing and Community Development covers state ADU requirements, including floor construction standards for habitable spaces. For Rohnert Park-specific permit questions, the City of Rohnert Park Building Division is the direct source.
A pool deck is a specialized outdoor slab pour — we can scope it alongside a new floor installation to keep everything on one project timeline.
Learn moreGarage-specific floor options including epoxy coatings, sealers, and decorative finishes on top of a properly poured slab.
Learn moreSpring and fall book fast in the North Bay — contact us now to lock in your project date before the season fills up.