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    Groundworks

    4.6 (467 reviews)
    Open 5:00 am - 8:00 pm

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    Response time

    10 minutes

    Response rate

    100%

    Services - Groundworks

    Foundation construction

    Foundation inspection

    Foundation repair

    22 More Services

    Foundation replacement

    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

    Nena C.

    We had been having issues with mold in our home and suspected that the crawlspace could be the culprit. I research companies ans contacted Groundworks. Joe Daleo came over and did a really thorough job of inspecting our property including our crawlspace and foundation. He found that there was moisture on one side of our property due to ground water settling. We decided to move forward with encapsulation after feeling confident with the information that Joe provided. We waited about a month to get started as we had some other home projects we needed to get done first. During that time, Joe maintained communication and I was able to reach him whenever I needed, which was awesome. When the work started, Brandon and his team, including Edgar, Alberto, and Jose all showed up with a smile. Brandon gave me regular updates and pictures of what was going on with the work. Whenever I encountered any of the guys, they were always polite and professional. I know it was difficult work to be underneath my house for eight hours a day and I couldn't understand how they could still be so friendly and genuinely happy. Joe Daleo continue to be in contact with me during the project and came over to check on the work that was being done. Since the encapsulation was completed, we have noticed that the temperature of our home stays more regulated and the musty scents have dissipated. We also noticed that the rooms on the side of the house with the moisture used to feel muggy and now they don't. We are so happy that we chose Groundworks and decided to encapsulate our crawlspace. I highly recommend them!

    Nice and level!!

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    Page 1 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 - CleanSpace Systems including vapor barrier liner, drainage and sump pump.

    NorCal Foundation Support

    (89 reviews)

    My specialist was Scott Cone. Although I did not work with them for foundation work or repairs, I…read morehad a great experience having Scott do my initial consultation. He showed up on time, was very respectful of my home and professional. Not pushy at all, and very easy to speak with. High compliments for Scott!

    Working with this company was one of the most frustrating experiences I have ever had. I signed my…read morecontract in August and today on 3/22/26 the work is finally complete. The communication is absolutely horrible, if you get any at all. With repeated attempts to follow up on my project, I kept getting the same answer that they were waiting on permitting, but on two separate occasions, over two separate issues, with two separate time spans, that was incorrect and the delay was a failure to complete the correct paperwork to even submit to the city. This caused months of delays that were unnecessary. They did damage to my electrical, but only would accept responsibility when I pushed back. The work took weeks longer than originally anticipated. All of these things I can understand, but again the terrible communication made the situation so much worse than it needed to be. The technicians who performed the work were very nice and worked their butts off. They walked onto my project totally unprepared for the work involved, even though two representatives were under my house on two separate occasions and could have assessed the work needed. I could keep going, but no one reads long reviews and I am hoping to save someone the headache I went through.

    Foundation Repair of CA

    Foundation Repair of CA

    (399 reviews)

    On the whole I give Foundation Repair of CA high marks. But first, I'll offer an observation…read morehaving nothing to do with that company. Foundation repair involves a lot of digging resulting in a good deal of dirt piling up. Do it during a rainy spell, and there will be mud - lots of it. You have been warned. Avoid scheduling during the rainy season if you can. Let me start with several complaints. First, Foundation Repair should have been a bit more attentive to clean up. Finding a discarded plastic water bottle in the crawlspace maybe isn't the worst thing, but for the healthy-sized check I had to write for the work, a bit more attention to the finishing touches would not be asking too much. Likewise, for finishing touches, I was left with a significant problem. Part of the structure of my deck required removal to do the work. Foundation Repair said they'd repair the structure when done. They did so but, as I discovered after they were gone, the job was so badly executed I had to redo it on my own. Fortunately, I had the necessary tools, but at the age of 78 and working alone, this was a major undertaking. In retrospect, I should have demanded they return and do it right. Now, on to the positives. First a major shout out to Foundation Repair's Christopher Gerrans who gave me some major assistance in getting prepared for the work. He went far, far above and beyond what I expected to help me out. Foundation Repair management, do please remember this when bonus time comes around. I had a lot of trepidation about getting a bid for this work. Foundation repair is an expensive proposition. I was impressed (and relieved) when I was presented with a comprehensive three-tier set of job plan options (I ended up opting for the most expensive). My point is that Foundation Repair (specifically, Mr. Gerrans, again) did a great job up front in helping me to understand what my options were. I was quite impressed with the technology employed to shore up the house. Does it work, though? Well, if the house is still intact a half century from now, then the answer is yes. So, only time will tell if the work was effective. But it certainly looked like a solid and dependable solution. The work was done in timely fashion, and communication was good throughout. Foundation work is an expensive proposition, but I think I got my money's worth from Foundation Repair and would not hesitate to recommend them.

    We had a horrible moisture problem in the crawl space under our house. Jesus L., Miguel, Johan and…read moreJorge did an AMAZING job installing sump pumps and encapsulating under our house. It's only been a few days and we're already seeing it dry out. Worth the investment to get the job done right. Highly recommended!

    Foundation Solutions - Chimney Stabilization repair

    Foundation Solutions

    (155 reviews)

    Excellent service! While working to get our property ready for sale, we had initial foundation…read moreinspections done by another company through our realtor. Based on the report, we engaged Foundation Solutions for the repairs. After a quick call for an appointment, I met with Collin to go over all necessary repairs. He was very professional and explained the scope of the work and details on how each of the repairs will be done. Once the quote was ready, Collin followed-up to see if there were any questions. The quote was very reasonable and I quickly went with them. Scheduling the work was also easy and only took the crew a couple of days to complete the job. Great experience overall!

    We just did a mid size project with them last month. We had them underpin one side of the house and…read morereplace a good amount of posts and repair some cracks in our foundation. Brett came out to do an assessment on our entire foundation and his finding was consistent with our own inspection report. Their recommendation is also on par and we find that Brett is quite knowledgeable about the scope of work. He is also very patient, responsive and respectful throughout the estimating project while we took a long time to decide, a lot of follow ip questions and requests. Not once that I felt rushed, pushed or disrespected. The team kept me informed on the timeline of permit, project starting time, inspection and completion, everything was transparent. They passed inspection without problemsx Our foreman is Humberto who was polite, dependable and kept me well informed on the work they performed the day of, when they finished work and provided needed before and after pictures. I also find their pricing is reasonable compared to other companies that we interviewed with the experience that far exceeds their piers. Overall I had a good experience with the crew. They are polite and really didn't interfere with our life that much while they work. I would recommend them for all foundation repair needs. Be careful because lots of foundation companies will scam you, just because you will not be able to see what they did underneath your crawl space. The last foundation company came out to fix our house they made a bunch of noise for 2 weeks, said they are done and then we hired an independent inspector and confirmed they did nothing. Spend the money on a good company. This one is probably the best one ( we interviewed 6 companies)

    NorCal Ram Jack

    NorCal Ram Jack

    (53 reviews)

    We removed a wall in our two story house a couple of years back and started to notice uneven floors…read morethroughout our house. I was worried that the beam supporting the roof was not adequate and that was leading to foundation issues. Most online advice suggested to hire a structural engineer to inspect the foundation, as contractors may blow minor issues out of proportion an suggest unnecessary repairs. The structural engineers quoted me $500 for an inspection and they wanted pictures from a foundation repair contractor anyways, since they wouldn't go into crawl spaces. I was losing sleep thinking about my uneven floors, so I decided to reach out to NorCal Ram Jack for a free estimate. What was there to lose? After filling out their online request form they reached out within a couple of hours and scheduled an appointment the following week with Adam, their Foundation Specialist. Adam showed up early and I was easily able to communicate my concerns to him. He measured the elevation differential throughout my house, asked about details of the removed wall and installed beam, and answered all my concerns. He walked us through his thought process and what signs of concerns we should look for that would warrant a foundation repair. We are lucky that our house currently doesn't have issues of concern, but I wouldn't hesitate to contact Ram Jack again with the peace of mind they gave us.

    The work was repaired, the void under our slab has been filled(a total of i believe 8holes or more…read morein 2 rooms). They peeled the carpet back,drilled the holes and re-installed the carpets to the best of their ability (which actually isn't bad at all). Fence+gate have been fixed as well. They aren't fence guys or carpet guys so leaving a review about those not done to the quality of someone who does it professionally isn't necessary, although they did do a good job with both. We appreciate the 2nd visit, no one had contacted me to change my 1star review, this is of my own doing a week later. No refund,no pay out, no negotiating, we didn't sign anything stating the review would come down after work was done. We appreciate all your guys hard work and cheerful attitude. Hope your guys liked the cookies! Thank you !

    Groundworks - masonry_concrete - Updated May 2026

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