Concrete is unforgiving: it is only ever as good as the ground prep, the forming, and the finishing done in the few hours before it sets. RC Builders Inc (CSLB License #1081425) pours and finishes concrete with our own crew — no brokered-out flatwork — for homeowners and businesses across the Salinas Valley and Monterey Peninsula.
From a new driveway in Salinas to an ADU foundation in Seaside or a retaining wall on a Carmel Valley slope, we handle layout, excavation, forming, steel, pour, and finish as one continuous operation. It is some of the most satisfying work we do, and some of the most visible — which is why we treat every slab like it has our name stamped in the corner.
Concrete work we perform
- Concrete driveways — new pours, tear-out and replacement, and extensions.
- Patios & walkways — broom, trowel, and exposed-aggregate finishes.
- Stamped & decorative concrete — patterned and colored finishes at a fraction of stone cost.
- Foundations — slab-on-grade, stem walls, and footings for additions, ADUs, and new homes.
- Retaining walls — engineered concrete and block walls with real drainage behind them.
- Garage & shop slabs.
- Concrete steps & landings.
- Seismic retrofits — foundation bolting and cripple-wall bracing for older homes.
What concrete costs locally
For standard gray concrete flatwork — driveways, patios, walkways — expect roughly $10–$16 per square foot installed in the Salinas and Monterey area, including demolition of existing concrete where needed. Stamped and colored finishes typically run $16–$28 per square foot. Foundations and retaining walls are priced by the project, since excavation, engineering, and steel vary widely. Watch out for per-yard prices quoted as if they were installed prices — an installed square-foot number with prep, base, steel, and finish included is the only quote you can compare.
Foundations: where structure starts
Every addition, ADU, and new home we build starts with a foundation our own crew forms and pours — one reason our project schedules hold when others slip. We also repair and retrofit existing foundations: cracked stem walls, settling corners, and the unbolted pre-1980 foundations common across the Peninsula that seismic retrofitting addresses directly. On the coast, soil matters: the sandy soils in Seaside, Marina, and Sand City and the expansive clays in parts of the Salinas Valley call for different footing designs, and we build to the engineering, not to habit.
Done right the first time
Good concrete on the Central Coast comes down to fundamentals executed every single time: compacted base, correct steel placement, proper mix for the marine environment, control joints cut at the right spacing and depth, and cure management in our fog-one-day, sun-the-next weather. That is also why we photograph every stage — you see the base, the steel, and the forms before the truck ever arrives.
Our work
Concrete & Foundations services we offer
- Concrete driveways
- Concrete patios & walkways
- Stamped & decorative concrete
- Foundation construction
- Foundation repair & retrofit
- Retaining walls
- Garage slabs
- Concrete steps
Frequently Asked Questions
Plan on roughly $10–$16 per square foot installed for standard broom-finish concrete, including tear-out of the old driveway where needed. Stamped or colored concrete runs $16–$28 per square foot. A typical two-car driveway lands between $8,000 and $15,000 depending on size and site access.
Foot traffic after 24–48 hours, vehicles after 7 days, and full design strength at 28 days. We schedule pours around weather — marine fog actually helps a slow, strong cure, but rain and cold snaps are worth waiting out.
Simple flatwork like patios and walkway replacement usually does not require one. Foundations, retaining walls over four feet, and work in the public right-of-way (like driveway approaches) do. We confirm requirements with your jurisdiction and pull any permit the job needs.
Concrete shrinks as it cures — cracking is physics. The difference is control: compacted base, correct steel, and properly spaced control joints direct cracking into straight, planned lines instead of random ones. Old slabs typically cracked because base prep or joints were skipped.
We can match finish and joint pattern closely; exact color match on aged concrete is not honestly achievable, and we will show you options — including saw-cut transitions and borders — that make the new work look intentional rather than patched.
Yes. Cracked stem walls, settled footings, and seismic retrofits (foundation bolting and cripple-wall bracing) are core work for us, usually guided by an engineer’s detail we can arrange as part of the project.