1. Groundworks

    1. Groundworks

    0

    Fairfield, CA

    Groundworks

    4.5 (485 reviews)
    Open 5:00 am - 8:00 pm
    Updated 3 months ago

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    10 minutes

    Response rate

    100%

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    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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    6 years ago

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    4 years ago

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    2 years ago

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    3 years ago

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    4 years ago

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    2 years ago

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    3 years ago

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    3 years ago

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    1 year ago

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    3 years ago

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    4 years ago

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    Steve E.

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    5 years ago

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    4 years ago

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    3 years ago

    excellent customer service, fast professional replies. Very thorough with all the information and what our options were

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    3 years ago

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    Groundworks Inc.

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    3 years ago

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    7 years ago

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    Hannah F.

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    2 years ago

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    3 years ago

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    3 years ago

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    3 years ago

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    3 years ago

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    2 years ago

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    2 years ago

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    3 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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    3 years ago

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    Steve E.

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    2 years ago

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    7 years ago

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    Hannah F.

    We appreciate you taking the time to leave a review, Frank!

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    3 years ago

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    3 years ago

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    Steve E.

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    5 years ago

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    Steve E.

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    3 years ago

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    3 years ago

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    5 years ago

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    Steve E.

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    3 years ago

    They did our foundation and they really good very professional and we on time. They check in with make sure everything it good

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    Steve E.

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    3 years ago

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    2 years ago

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    4 years ago

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    Page 4 of 13

    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 - CleanSpace Systems including vapor barrier liner, drainage and sump pump.

    NorCal Foundation Support

    (92 reviews)

    i cannot say enough about what a good job the crew that did my work was. They were kind curtious…read morepromp and very professiona. I work in Real Estate and would advise my clients with Foundation issues to use this company. NorCal Foundation did a fantastic job. Sincerely

    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.

    Royalty Roofing & Waterproof

    Royalty Roofing & Waterproof

    (21 reviews)

    I am writing a review to let you know that I was more than happy with the service and work that my…read morehouse got for getting a new rooftop. Miguel and his team recently remodeled my flat rooftop to a pitched one just before the heavy rain. I had been experiencing a ceiling leak for quite a while and I was searching for a company that does rooftop remodeling. After searching for a roofing company who could remodel my rooftop Royalty Roofing & Waterproof company was providing the type of work I wanted. Miguel took care of the permit and everything the city of Richmond required to get the work done. My family and I are very grateful for the outcome. New roof remodeled and gutter installation. I am highly recommending his company for anyone needing great customer service and great pricing. Thank you Miguel for everything.

    This my second review of this company. I used them a couple years ago to repair a leak in my roof…read moreand they did a nice job for a reasonable price compared to three other quotes I received. At that time I also got for quotes to redo my whole roof. At the time the house was built the building code did not require cement tile roofs to have wood boards under the tile and that's one of the reason I had leaks throughout the time I bought the house new. I wanted to have wooden boards and underlayment added under the tile and than replace the existing tile. Miguel , owner of Royalty roofing and three other companies gave me a quote for the exact same work. Miguel's quote was the lowest with two others being twice Miguel's quote. I then decided to hold off on the work since Miguel has already came out and did the repair work. It's now two years later, my wife and I decided to go ahead and do the repair but now adding new tiles instead of keeping the existing ones. I contact Miguel for a new quote with new tiles. I was surprised that his quotes with new tile was roughly the same price I received from other roofers quotes I received a couple years ago for just adding the wood boards and underlayment. WE signed a contract and the work was completed in about 2 1/2 weeks. Miguel's crew came at 8 am everyday and worked diligently each and everyday. Miguel was always around or just call alway to answer any questions. He very responsive to your needs and easy to talk to. We were also having our house painted after the roof work and he offered to come back after the painting was completed to inspect and replace and tiles that might have been broken by the painters. He also left us half a dozen tiles to keep in case tiles get broken in the future. He also added new rain gutters which I didn't ask for but at his price I just felt lucky to get them. Gutters alone cost between $2000 to $3000 . I do highly recommend him to anyone who wants their roof repaired or replaced. One of my neighbors hired him along with me. He is licensed contractor and had an A+ rating with the BBB.

    Groundworks - masonry_concrete - Updated September 2026

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