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LIVE · Studio ·Vol. I ·California ADU Desk ·Licensed · Bonded · Insured ·CSLB #1098432 ·BBB A+ Accredited ·120+ ADUs Delivered ·Starting $250K ·10–16% ROI ·Los Angeles ·Bay Area ·LIVE · Studio ·Vol. I ·California ADU Desk ·Licensed · Bonded · Insured ·CSLB #1098432 ·BBB A+ Accredited ·120+ ADUs Delivered ·Starting $250K ·10–16% ROI ·Los Angeles ·Bay Area ·
GoldenStateADU
Desk 02 · Bay Area · Foundation

Bay Area Foundation Repair & Replacement Contractor. engineered to the Bay's soils.

Bay Area foundation work is dominated by two realities: liquefiable fill in parts of SF and the East Bay flats, and engineered drilled piers on East Bay and Peninsula hillsides. We repair, underpin, and replace foundations across the Bay with a structural engineer + soils report on every project.

Licensed California contractor · CSLB #1098432 · Bay Area desk · city-by-city review

Begin a Bay Area foundation repair & replacement brief →← Back to Bay Area desk

About Foundation Repair & Replacement in Bay Area

Common work: raise-and-replace under 1900s SF Edwardians and Berkeley craftsmans, helical piers under settling additions, drilled caissons on Oakland and Berkeley hillsides, and engineered new pads under additions and ADUs.

Bay Area permit notes · Foundation

What we resolve before drawings begin.

  • 01

    City permit + structural + soils

    Foundation work triggers city permit + signed structural drawings + soils report. We coordinate all three.

  • 02

    Drilled caissons on hillside lots

    Bay hillside foundations typically need engineered drilled caissons 15–40 ft deep with grade beams. Soils-driven design.

  • 03

    Raise-and-replace logistics on occupied homes

    Lift, replace, set down — 5–10 weeks with coordinated MEP disconnect. Tenant or owner relocation planned in advance.

Other Bay Area services.

All Bay Area services →

Bay Area · Foundation FAQ

Questions Bay Area homeowners ask first.

Start a Bay Area foundation brief. We'll arrange structural + soils, walk feasibility, and write a fixed-scope contract.

  1. What does a Bay Area foundation replacement cost?
    Raise-and-replace on a single-family $110K–$280K depending on soil, access, and size. Repairs and underpinning $20K–$80K.
  2. How long does it take?
    Repair 3–5 weeks. Full raise-and-replace 7–12 weeks. Hillside caissons 5–10 weeks.
  3. Do I need a soils report?
    Bay Area cities almost always require one for new foundation work and on every hillside lot.
  4. Can I stay in the house during foundation work?
    Localized repairs and underpinning often allow occupancy. Raise-and-replace requires vacancy because utilities are disconnected during the lift. We coordinate MEP disconnect around your move.
  5. What are the signs my Bay Area foundation needs work?
    Sloped floors, sticking doors, stair-step cracks in stucco or brick, gaps between trim and walls, and standing water in the crawlspace. We do a structural walk-through before pricing.
Begin

Begin your projectin twenty minutes.

A short feasibility review of your lot — what you can build, roughly what it costs, and how long it will take. Free of charge. No sales call afterwards unless you ask for one.

Get started→or call (323) 483-4705
  • No obligation
  • Reply within 24 hours
  • BBB A+ Accredited