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    Groundworks

    4.5 (484 reviews)
    Closed 4:00 am - 8:00 pm
    Updated 2 months ago

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    The Monster Crew from Groundworks.
    Eric T.

    They easily fixed my long-standing downstairs leak. The crew was efficient and professional. Highly recommended.

    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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    Page 1 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

    Black Diamond Paver Stones & Landscape

    Black Diamond Paver Stones & Landscape

    4.8
    (52 reviews)

    Black Diamond Paver Stones & Landscape, Inc. did work for us six years ago to our walkway entrance…read moreof our home. What initially sold us was the 26 year warranty. So, we decided to reach out to them since we loved the pavers they did already, but this time with a MUCH bigger job. They sent Matt M. to our home, who ended up being our Project Manager. What was super important to us was to find someone that could translate our vision to his team and bring it to life. This is exactly what Matt did. His crew Sergio Sr, Sergio Jr and Marco and the rest of the crew were absolutely amazing! They paid attention to detail. They never rushed the process. They were always kind and understanding. They worked endless hours in brutal weather and poured love into our home. Super humans is what we called them! Master Masonry at its finest. If you are ever thinking about any hardscaping, landscaping or draining system for your home it would be in your best interest to reach out to Black Diamond. And ask for Matt and his All Star Team. They will not disappoint. Thank you Black Diamond!

    Thank you, Black Diamond! Wow! What exquisite work!…read moreNeighbors and dog-walkers are still complimenting on our driveway and walkway! To begin, contractor, John Fruin met us to provide one of two bids for our project. He was the second we interviewed. Despite our plans to go with the first bid, he quickly won us over with his level of expertise and easy, no-pressure demeanor. He had clever ideas we had never considered. Long story short- he won us ten times over! And, the bid was dramatically lower than the other. Dramatically! We also loved the payment plan with no interest! Now... about the crew! AMAZING group of such dedicated, hard-working young, strong men we have ever seen! Our project was estimated at a little less than 2 weeks. And, guess what? It took 3 1/2 days!!! Unbelievable! The crew under foreman, Ulises worked so diligently and with such attention to detail. They arrived promptly early AM and left just before 6 PM. They impressed us and the neighbors in their last hour of work, power washing the project before their return the next day which included the street. Clean-up was quite impressive! And, the work was expertly executed! Each had their role and there was so much respect and encouragement between them all! Such a happy crew! Of course, we will continue to recommend them to anyone we know and have already referred to a few of those dog-walkers we never knew before!

    Innovative Concrete Solutions

    Innovative Concrete Solutions

    4.1
    (8 reviews)

    I can't say enough great things about Innovative Concrete Solutions! It took me six months to find…read morethe right concrete contractor for my new build, and I'm so glad I waited until I found them. From start to finish, they were professional, knowledgeable, responsive, honest, and incredibly detail-oriented. They kept me informed throughout the entire process, took tremendous pride in their work, and were respectful of my property. They were also exceptionally clean--when they finished, they didn't leave debris or a mess behind. They completed a driveway extension, stamped and colored patio, mow strip, and a custom concrete bench, and the quality of every part of the project is truly second to none. The craftsmanship, attention to detail, and finished product exceeded my expectations. It's clear that this is a company that genuinely cares about doing things right and making sure their customers are happy. Finding the right contractor can be stressful, but Innovative Concrete Solutions made the entire experience easy and enjoyable. I would absolutely use them again and highly recommend them to anyone looking for exceptional concrete work. Five stars all the way!

    We had Innovative Concrete Solutions lay so much of the concrete in our front and back yard and…read moreboth side driveways. Originally, last May, we wanted the side driveways and a concrete slab to put our Tuff Shed on in the backyard, but within a week, we knew Innovative Concrete Solutions would also do high quality work on the patio portion that we wanted stamped and colored, so we added that to the backyard project. The owner Ramon designed a color for me after I showed him pictures of the shade of terra cotta I was going for. I received so many compliments on the unique color of my patio concrete from friends, family and neighbors. He can work a color to your preference, he has colors ready or you can come up with your own like I did. My husband and I were super pleased with the entire look of the two sides and back yard! Four months later in Oct, we were ready to put a couple of concrete walkways in the front yard. Again, I had specific designs chosen for stamping and colors and Ramon delivered again on another unique design and color impression sample that satisfied the look I was going for. For the price he was charging me for the two walkways, it was indeed worth what I got in return. The work done was professional and high level. We were beyond happy with the vibe and look created. THEN UNEXPECTEDLY, the ground below the main walkway started uprising within a month of the completed walk way work. My husband called Christian, and both Ramon and Christian came by within minutes and ensured us they would redo the concrete edge so the sidewalk and walkway would be seamless again. Not that any of this uprising was their fault and yet Ramon didn't want to charge us for any of the work he did today to get the concrete even with the sidewalk again. As customers worldwide would agree, customer service beyond the original project or product is everything to us. Thank you INNOVATIVE CONCRETE SOLUTIONS for the innovative and custom look created for us and the solution to the only one problem that came up. We cannot thank you enough for all the beauty the concrete has brought to our outdoor space and for going above and beyond to smooth down the edge of the concrete which looks absolutely amazing now!!

    EC Concrete Construction

    EC Concrete Construction

    4.5
    (8 reviews)

    I'm so impressed with this company. First of all, out of the gate I was told that I'd get a…read morecallback within 30 minutes...it happened! Then I was told that I could get a free quote visit within 90 minutes...it happened. Then I was told I'd have a quote by the end of the day...and it happened! I know I'm making a big deal out of these issues but integrity is important to me and having respect for my time is too. We've all been there where commitments are missed and you end up so frustrated. Not here. This company checked all the boxes for us, so the same day that I got the quote, I said yes. Now let's talk about the work! OMG! These guys are perfectionist and thank goodness because I have pretty high expectations. Now, I know this isn't typically what happens because schedules can be tight, but I said yes on Friday and they worked all day to finish my job on Saturday...the next day! Impressive! They listened to what we wanted and asked if I was pleased with where the project was headed. They are neat, pleasant, patient, and committed to getting it right. Superior customer service. I recommend this company 1000%!!!

    Was looking to get a patio done, and glad I went with EC Concrete! Lalo came over for a quote, and…read moregave me a reasonable price. Ended up scheduling about a month out after the quote and got it done. I had realized after the quote that I had wanted another small area done for my BBQ grill and he accommodate my request again for a reasonable price. Super thrilled with how it came out, and I was able to articulate how I wanted it, and was able to see my backyard grow into how I have been seeing it in my head. Not sure I'll need any more cement in the foreseeable future, but when I do I know who I'll be calling!

    NorCal Foundation Support

    NorCal Foundation Support

    4.2
    (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.

    Groundworks - masonry_concrete - Updated August 2026

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