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    Groundworks

    4.6 (475 reviews)
    Open 4:00 am - 8:00 pm
    Updated 1 week ago

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    Response time

    10 minutes

    Response rate

    100%

    Services - Groundworks

    Foundation construction

    Foundation inspection

    Foundation repair

    28 More Services

    Foundation replacement

    Driveway construction or installation

    Exterior wall construction

    Interior wall construction

    Retaining walls

    Patio, porch, or terrace construction or installation

    Walkway construction or installation

    Masonry/concrete repair

    Masonry/concrete sealing

    Moisture or vapor barrier installation

    Moisture or vapor barrier repair

    Moisture control inspection

    Moisture control installation

    Moisture control repair

    Exterior wall repair

    Interior wall repair

    Retaining wall repair

    Driveway sealing or resealing

    Exterior wall sealing or resealing

    Interior wall sealing or resealing

    Retaining wall sealing or resealing

    Patio, porch, or terrace sealing or resealing

    Walkway sealing or resealing

    Sump pump installation

    Sump pump repair

    Waterproofing inspection

    Waterproofing installation

    Waterproofing repair

    Groundworks Photos

    Recommended Reviews - Groundworks

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    Reviews With Photos

    Chi N.

    Red flag !!! Don't use this company for foundation work or any work on your house.They did my foundation repair and leveling the house. none of the work was done correctly as plan and now the house it worse than it was before the work was done .more cracks on the foundation and didn't level out the house and my house started to buckle where they did the work at and none of the Intel jacks are tighten up to hold the house up and now i'm worried it might get worse before they fix it. They requested us to pay in full when the work was done. That's a scam. when the final inspection is not done and no paperwork Now we are waiting on them to find a solution to fixing our house.it been 2 weeks now still waiting Will update this post after the solution

    Slab that holds swim spa
    D W.

    Absolutely amazing how these guys come out and raise your patios is short time. Anthony and Brian just knocked it out. Got her on time where very nice to deal with and they got right to work and raised my patio slab (1 1/2") in such short time. They cleaned up afterwards and left the yard in excellent shape. I was very impressed with their professionalism. Special shout out to them both. Just dealing with Groundworks from the initial appointment with Mr Dalton, to getting a great estimate to having good guys fix my patio. I highly recommend Groundworks!

    before
    Juan H.

    The team at Groundworks did a stellar job fixing my house's concrete stairs. They were very professional, knowledgeable about the process and were vey informative through the procedure. Big shoutout to Alex Campbell and Juan Pablo Hernandez who performed the work professionally at every step, from preparation to clean up. Also, a shoutout to Jim Dacpano, John Dalton and Dan Cartieri who assisted with the work ensuring smooth execution. I would 100% recommend Groundworks for any work related with leveling and fixing concrete stairs. Their customer service and attention to detail are superb Over all, the team delivered the job professionally

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    4 years ago

    Really great service! And Jordan and the guys were great! On time prepared and polite.

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    Steve E.

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    4 years ago

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    Steve E.

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    Steve E.

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    9 years ago

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    5 years ago

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    4 years ago

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    6 years ago

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    Steve E.

    Kate, thank you for the review! We appreciate it!

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    3 years ago

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    Steve E.

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    8 years ago

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    4 years ago

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    Steve E.

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    7 years ago

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    Hannah F.

    Thanks for the review, Michelle!

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    5 years ago

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    4 years ago

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    Steve E.

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    7 years ago

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    Hannah F.

    We appreciate the review! Thanks, Prabhjit!

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    7 years ago

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    Hannah F.

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    9 years ago

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    6 years ago

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    9 years ago

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    6 years ago

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    4 years ago

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    Steve E.

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    3 years ago

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    Groundworks Inc.

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    4 years ago

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    Steve E.

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    4 years ago

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    Steve E.

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    9 years ago

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    7 years ago

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    Hannah F.

    Thanks for the review, Chayla!

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    6 years ago

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    7 years ago

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    Steve E.

    Debbra, we would like to thank you for your time and kind words.

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    7 years ago

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    Hannah F.

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    4 years ago

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    Steve E.

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    7 years ago

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    Hannah F.

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    7 years ago

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    Hannah F.

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    5 years ago

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    Steve E.

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    7 years ago

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    Hannah F.

    Thanks for taking the time to leave a review, Penny!

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    10 years ago

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    6 years ago

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    Hannah F.

    Thanks, Chad! Appreciate you taking the time to leave a review.

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    7 years ago

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    Hannah F.

    Thanks so much for review, Liz!

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    6 years ago

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    Hannah F.

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    4 years ago

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    Steve E.

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    5 years ago

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    Page 8 of 12

    Ask the Community - Groundworks

    Do you service Antioch or Oakland?

    Hi Jennifer, we do service both Antioch & Oakland.

    Do you do foundation inspection in Martinez CA? If yes how soon can I make an appointment. Thank you?

    Hi Sheida, yes we service Martinez, CA. The best way to schedule an appointment would be to directly contact us at our office 707-310-0602. We will also provide you with the soonest availability for a foundation inspection.

    Do you service Stockton by any chance? Off Benjamin Holt Drive / I-5?

    Hi, thanks you for messaging us. We do service the Stockton area for Foundation Repairs. Feel free to call to call us and schedule a free estimate and inspection. 707-310-0602

    Hello do you guys do estimate for load bearing wall removal with possible power beam install, we want to do a kitchen remodel and want to know out a load bearing wall?

    Hi Juli, this is not in our scope of work. We recommend you contacting a structural engineering firm.

    Hi! Do you guys do re-leveling of mobilehomes/manufactured homes in Antioch, Ca? If yes, how much on average a doublewide would cost? Thanks!

    Hi Jona, if the mobile/manufactured home is on a pre-existing foundation (not on cinder blocks) then we can help level/stabilize. Otherwise, that is not in our scope of work.

    Do you replace screw jacks and piers? Ours have shifted and some are floating due to shrinking adobe soil. Thank you.

    Hi Barbara, we do replace screwjacks and install piers. Please contact the office to schedule an inspection and quote at (707) 310-0602.

    I sent email to Hannah regarding my foundation work done by Bay Area Underpinning and having foundation issue after the fix. The email is bouncing back saying Hannah not found. Whom should we communicate the issue?

    Try 707-310-0620 (main number) or Darren at 707-315-2532

    We had a shed installed in our backyard and even though I approved placement, my husband is not happy. It needs to be pushed about 4" back and 4" to the side on a cement pad. Can you help? Can send pix....

    Hi Pam, thanks for reaching out! This is not something that we do. We lift and level settling buildings. We recommend you contacting the company who installed the shed.

    Hi do you serve Brentwood 94513?

    We do serve Brentwood!

    View All 15 Questions

    Review Highlights - Groundworks

    The gentleman that came out for estimate (Darren?) was great communicating the issues along with the proposed remedy.

    Mentioned in 30 reviews

    Read more highlights

    NorCal Foundation Support

    NorCal Foundation Support

    4.2
    (88 reviews)

    After decades of winter storms producing standing water in our crawlspace, with French drains and…read moregutters doing their best, NorCal Foundation Support offered a top quality system for channeling standing water under an encapsulated liner to a sump pump. Steven and his team prepped the space and installed the system with professionalism and at a standard of quality I had hoped for and came to expect. Though this is an expensive undertaking and a home investment you don't get to see to enjoy, the research I've done suggests NorCal Foundation Support is in line with methods and cost. I learned a lot from 'Crawlspace Ninja' on YouTube. You might check that out if you're considering this approach to your wet crawlspace. And reach to NorCal Foundation Support for their product and exinstallation team.

    I contracted Norcal Foundation Support in July 2025 for what was supposed to be a two-week, $52,130…read morefoundation stabilization project at my hillside home. What followed was nearly a year of mismanagement, broken commitments, and financial consequences I'm still dealing with. They no-showed on the agreed start date. I called them at 10am to find out why -- they told me they were stuck on another job. No warning, no proactive communication. It only got worse from there. The job stretched into months of sporadic work. Midway through, they told me they needed a subcontractor for core drilling -- something that should have been identified during scoping -- then let months pass without scheduling one. My property sat in a hazardous state the entire time: open holes covered only by wood boards, piles of excavated dirt, debris, and equipment surrounded by caution tape. My homeowner's insurance company conducted a routine inspection, found the condition of my property unacceptable, threatened to drop my policy, and ultimately imposed a $2,000 surcharge. Resolving that took significant time and effort. Faced with no resolution in sight, I was pressured into accepting a reduced scope of work -- specifically, no tiebacks. Tiebacks were explicitly included in my signed contract and shown on the job drawing. Without them, there is no guarantee my home will remain stable on the hillside. I paid $52,130 for a project that does not solve my problem. After agreeing to the reduced plan, it took more months to redraw plans and pull permits, then more weeks to schedule the final visit to seal holes and reconnect drainage. On that scheduled day, they no-showed. Again. When they arrived the next day, they left without finishing. Their excuse: my gardener had told them not to proceed. My gardener -- someone I know well and trust -- told me he said no such thing. Norcal did not just take direction from someone with no authority over my contract. They fabricated an excuse to walk off the job. This company demonstrated the same pattern of behavior from the very first day to the very last: no communication, no accountability, and no follow-through.

    Groundworks - masonry_concrete - Updated June 2026

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