(858) 808-6055
Foundations

Concrete foundations across San Diego County

Foundations are the part of a build no one sees and everyone pays for if it is wrong. We pour to engineered specs every time — slab-on-grade for ADUs and additions, stem-wall and post-and-pier where the lot calls for it, with rebar schedules and footing depths matched to San Diego County code and the soil report.

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Concrete foundation pour with rebar grid and forms at a San Diego construction site

What's included in this service?

  • Slab-on-grade foundations for ADUs, additions, and garages
  • Stem-wall foundations with continuous footings
  • Footings, grade beams, and pad footings
  • Rebar layout per structural drawings, not eyeballed
  • Vapor barrier, foam board, and sand cushion as specified
  • Anchor bolt placement and inspection-ready forms

When do you need this service?

  • Building an ADU, JADU, or detached garage
  • Adding a room or sunroom that ties into the existing home
  • Replacing a failed post-and-pier with a slab
  • New construction with an engineered set of plans
  • Pouring a workshop, barn, or detached studio

What do homeowners ask about Foundations?

Service area

Where do we offer Foundations in San Diego County?

We provide foundations in every city and community in San Diego County. Pick your city for local climate notes and service specifics.

Central Foundations in San Diego Older neighborhoods like North Park, Hillcrest, and Kensington have driveways and walkways that predate modern rebar standards. Most concrete work in central San Diego is replacement and repair, not new construction.
North Coastal Foundations in Oceanside Oceanside has a wide mix of housing — coastal estates, tract homes, and military-adjacent rentals. Concrete needs span from premium stamped patios to budget driveway replacements.
North Coastal Foundations in Carlsbad Carlsbad resale buyers expect upgraded concrete finishes — stamped patios, aggregate driveways, sealed pool decks. A broom-finish slab on a $1.5M home reads as cut corners.
North County Inland Foundations in Escondido Escondido summer heat and clay soils are tough on concrete. We pour early to avoid afternoon flash-set and over-spec rebar to handle seasonal soil movement.
East County Foundations in El Cajon El Cajon clay soils and triple-digit summers make base prep and rebar non-negotiable. Cheap pours fail fast in this microclimate.
South County Foundations in Chula Vista Chula Vista has new construction in Eastlake and Otay Ranch with engineered foundation specs, and older South Bay neighborhoods needing tear-out and replace work.
See foundations in all 48 cities
Foundations in AlpineFoundations in BonitaFoundations in BonsallFoundations in Borrego SpringsFoundations in BoulevardFoundations in CampoFoundations in CarlsbadFoundations in Chula VistaFoundations in CoronadoFoundations in Del MarFoundations in DescansoFoundations in DulzuraFoundations in El CajonFoundations in EncinitasFoundations in EscondidoFoundations in FallbrookFoundations in GuatayFoundations in Imperial BeachFoundations in JacumbaFoundations in JamulFoundations in JulianFoundations in La MesaFoundations in LakesideFoundations in Lemon GroveFoundations in Mount LagunaFoundations in National CityFoundations in OceansideFoundations in Palomar MountainFoundations in Pine ValleyFoundations in PotreroFoundations in PowayFoundations in RamonaFoundations in RanchitaFoundations in Rancho BernardoFoundations in Rancho PeñasquitosFoundations in Rancho Santa FeFoundations in San DiegoFoundations in San MarcosFoundations in San YsidroFoundations in Santa YsabelFoundations in SanteeFoundations in Shelter ValleyFoundations in Solana BeachFoundations in Spring ValleyFoundations in TecateFoundations in Valley CenterFoundations in VistaFoundations in Warner Springs
Keep reading

What should you know about Foundations?

Cost Guides

ADU foundation guide: slab vs stem-wall in San Diego

How to choose between a slab-on-grade and stem-wall foundation for your ADU in San Diego County — costs, code, soil conditions, and which one fits your lot.

Cost Guides

How much does a concrete driveway cost in San Diego (2026)

A working contractor's breakdown of concrete driveway costs in San Diego County — broom finish, stamped, aggregate, RV-rated, and what drives the difference.

Concrete Basics

When does a retaining wall need a permit in San Diego?

Permit requirements, height thresholds, surcharge rules, and engineering needs for concrete retaining walls in San Diego County jurisdictions.

Real feedback

Homeowners who hired us for this

Tore out our 1970s driveway and poured a new one with proper rebar and base prep. Crew showed up when they said, finished on schedule, and the saw-cut joints are dead straight. No surprise charges, no day-of pricing changes.

Maria G. Concrete Driveway · Chula Vista

Wanted a stamped patio off our slider and got three bids. Slab Pro was not the cheapest but they were the only contractor who brought sample boards and could explain why their integral color choice would hold up in coastal sun. Two years in, color is still rich and the surface is clean.

James K. Stamped Patio · Carlsbad

Built a 750 square foot ADU in our backyard. Slab Pro coordinated with our designer, scheduled the soil report, pulled permits, and poured the foundation. Inspectors signed off first time on rebar and final. Made the foundation phase the smoothest part of the build.

Daniel R. ADU Foundation · Escondido
Serving San Diego County

Need foundations in San Diego County?

Call for a free quote. Most work scheduled within the week.

(858) 808-6055 Request a quote