Serrato Builders is your C-8 licensed foundation contractor in Los Angeles County. The foundation is the most critical part of any structure — get it wrong and every wall, floor, and roof above it suffers. We pour residential and commercial concrete foundations, footings, stem walls, and slabs-on-grade per engineered structural plans, with proper compaction, rebar reinforcement, vapor barriers, and anchor bolt placement. From a single-family home foundation to a multi-unit slab, a garage slab to a commercial warehouse floor, we bring precision grading, seismic-ready reinforcement, and code-compliant concrete work to every pour. When you search "concrete foundation contractor Los Angeles" or "concrete slab near me," you find a team that builds from the ground up — right.
Whether you're building a new home, adding a room, putting up a garage, or pouring a commercial floor — the foundation is where it starts. We pour every type of concrete foundation and slab per engineered plans, with the right concrete mix, rebar, and compaction for LA's soil conditions and seismic requirements.
Complete home foundations including footings, stem walls, and slab-on-grade per structural plans. We coordinate with your framing contractor for anchor bolt layout and hold-down placement. Every foundation includes compacted subgrade, vapor barrier, rebar per engineer's schedule, and positive drainage away from the structure.
Heavy-duty commercial foundations and slabs for warehouses, retail spaces, office buildings, and industrial facilities. We pour thicker slabs with higher PSI concrete, heavier rebar schedules, and control joints engineered to prevent cracking under heavy loads. Forklift-rated and machinery-ready.
Detached garage slabs, workshop floors, RV pads, and accessory structure foundations. We pour with thickened edges for structural wall support, proper slope toward the door for drainage, and high-PSI concrete that handles vehicle weight without cracking. Includes vapor barrier and rebar or welded wire mesh per code.
New foundations for home additions that tie into existing structures. We match the existing foundation depth and type, install rebar dowels into the existing concrete, and pour to match — so your addition stays level with the rest of the house. Includes underpinning where required per engineer.
Complete tear-out and replacement of failing foundations. We handle the full scope: temporary shoring, demolition, excavation, new footings and stem walls per modern code, waterproofing, and backfill. See our concrete replacement page for details on tear-out projects.
We work directly with your structural engineer and handle permit coordination with city/county building departments. Every foundation is built to spec — the concrete strength, rebar schedule, footing width, and depth are executed exactly as called for on the plans. No substitutions without engineer sign-off.
Proper Subgrade Compaction
90%+ compaction tested and verified. LA's expansive soils require proper base prep — we don't pour on uncompacted fill.
Vapor Barrier Under Every Slab
10-mil minimum vapor barrier prevents moisture migration through the slab — critical for any floor that will have flooring over it.
Concrete Strength Per Spec
3,000 PSI minimum for residential slabs, 4,000+ PSI for structural foundations and commercial work — with ready-mix batch tickets provided.
Free on-site consultation and estimate
Planning and site preparation
Reinforcement and formwork
Professional concrete pour and finishing
Final inspection and cleanup
Los Angeles, San Fernando Valley, Santa Clarita, Glendale, Burbank, Pasadena, Woodland Hills, Studio City, Sherman Oaks, and surrounding areas.
Common questions about concrete foundations in Los Angeles
Contact us today for a free estimate. Our team is ready to discuss your project needs and provide expert guidance.