1. Groundworks

0

Fairfield, CA

Groundworks

4.5 (489 reviews)
Open • 5:00 am - 8:00 pm

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100%

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I spent approximately $30,000 with Groundworks, and I deeply regret hiring them. I called Groundworks for one reason: contractors working on my floors noticed a slope and told me the beams underneath my house needed to be stabilized before they could continue. Groundworks assessed my crawl space and recommended a system they represented would address the problem. I relied on their expertise. That is the ONLY reason I agreed to spend approximately $30,000. When the project was about 80% complete, Groundworks suddenly told me I needed to call a carpenter. They did not explain that there was significant dry rot underneath my home or that the condition of the wood needed to be addressed before the work they were performing. I learned that later, after hiring an independent home inspector. By then, Groundworks had already been working throughout the same crawl space installing stabilization and encapsulation. My inspector identified significant dry rot and explained that it needed to be addressed first. Had I known that before Groundworks performed approximately $30,000 worth of work, I would NEVER have moved forward with their recommended system before addressing the underlying damage. And here is the worst part: THE ORIGINAL PROBLEM WAS NOT FIXED. The slope remains and appears to have increased since their work was completed. I am now facing additional repairs and expenses, and some of Groundworks' work may have to be undone or worked around to properly repair the underlying damage. The encapsulation has also been problematic. It was supposed to help keep my crawl space dry, but it was not properly secured, leaving openings that allowed rodents into my crawl space. I also later learned that the dehumidification equipment installed did not cover the entire crawl space as I understood it was supposed to. Then there is the customer service. Once they had my money, getting meaningful help became incredibly difficult. I have contacted corporate and have gone more than a month without a meaningful response. If Chris is assigned to your project, based on my experience, I would be extremely cautious. My advice before hiring Groundworks: GET AN INDEPENDENT INSPECTION FIRST. Do not rely solely on the assessment of the company selling you the system. Get everything in writing and ask specifically whether anything underneath your home needs to be repaired before their system is installed. I trusted Groundworks to identify the problem and recommend a solution. Approximately $30,000 later, my original problem remains, the slope appears worse, I discovered significant dry rot that should have been addressed first, I am facing additional repairs, the encapsulation allowed rodent access, and corporate has been unresponsive. I would NEVER recommend Groundworks based on my experience. $30,000 spent. Original problem unresolved. More repairs ahead. That speaks for itself.

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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2 years ago

Called for an estimate, Joel was very thorough, offered multiple solutions and options. No pressure tactics, and very transparent.

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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

(95 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.

Foundation Repair of CA

Foundation Repair of CA

(419 reviews)

We were dealing with moisture issues in our crawlspace every rainy season, with water periodically…read moreseeping up through the floors and walls. We had a few folks out to assess the problem and Steve from Foundation Repair of CA was much clearer in communicating what the issue was than any of the others. He also offered us different options, giving us a straightforward assessment of the benefits and drawbacks of the different options. In the end, we went with drainage, encapsulation, and sump pump installation. Ernesto and his team (David, Juan, and Kelvin) came out for the installation and we were so impressed with the efficiency and quality of their work. Overall we're really happy we went with these guys, and are feeling so relieved that we don't have to worry about heavy rains anymore!

Foundation Repair of CA (FRC) is the most disreputable, dishonest company I've ever encountered. I…read morehired them because I didn't want to hire the lowest bidder for a change, and I regret it. I wouldn't sign the contract when told I'd have to do my own masonry repair until sales agent Jesse Marquez showed me FRC corporate material that indicated the brick facade would be removed with a masonry saw, in an approximate 2x2' square. That was false and deceptive advertising. This is what they did to my house. No masonry saw was used, only impact drills, which act as small jackhammers. FRC significantly damaged the entire brick facade, adjacent areas showed extensive cracking, entire areas had the brick facade knocked completely off the house, and the wall foundation was separated from the brick wall entirely. I told the work crew, headed by Luis, to stop using impact wrenches on the bricks immediately, then told them TWICE. Not only did they not stop, despite direct STOP work orders, they then took all of the bricks they'd destroyed, which legally is theft, called conveyance. Jesse Marquez explained that the bricks were so old they'd shattered. Luis returned the bricks after Jesse Marquez called, ignoring my several phone calls and texts. Jesse texted that the bricks were so old they'd shattered. Luis returned them, none were shattered, all were broken by the impact drills. Luis confirmed, texting that the bricks were "broken". They took the bricks to hide the damage. The day FRC received my Contractor's State Licensing Board complaint, FRC messaged that someone would come to assess the damage for repairs, and FRC would repair the masonry they'd destroyed. They first sent Robert Pagan, who acknowledged both that there were no masonry saw marks, and that the damage was excessive. According to FRC, Jesse stated Robert hadn't said this. It wasn't until I pointed out he'd said it while standing in front of a Ring camera did that lie die. FRC then sent Troy Knight, who acknowledged the same, and stated he was there to help, and would see that the masonry was repaired and more. I have several texts, voicemails and emails from FRC stating they will complete the job. They never did. FRC employee Mike Crites was sent to perform the repairs. He returned the following week with the wrong sized bricks in the wrong color, and proceeded to do more damage. This is the work that they did. FRC employee Mike Crites initially stated that he had retired as a mason, he later revised that statement, saying he'd only worked with pavers and concrete. The work performed was so substandard, FRC sent Jovincio, who was the only honest person in my entire dealings with FRC. Jovencio said he wasn't a mason, but had "some training". Jovencio replaced the work done by Mike Crites. This is Mike's effort, and Jovincio's replacement work. The work performed is clearly substandard and unacceptable. FRC acknowledged the workers sent lacked the skills, training and necessary certifications to perform masonry repairs. When I requested that FRC send a mason, and included photos of the work, FRC responded that they'd done me a favor; the workers sent were a courtesy. The very clause they'd ignored (and invalidated) by removing the bricks was cited. That they would do no more, leaving me with the bill for their damage. This is what they left. I obtained a second quote to repair the deficient masonry 'work' FRC workers had done - without a REQUIRED permit, with no mortar pins, odd-sized and broken bricks mortared in randomly, mortar lines that range from non-existent to more than an inch. Crites' also removed the brick facade foundation in several sections, replacing it with sloppy concrete. This is a code-violating 'repair' that is neither plumb nor square. The legitimate mason company from whom I obtained a repair quote updated the quote, which has nearly doubled BECAUSE of the 'repairs' performed by the unqualified FRC employees. FRC called this doing me a favor, saying the inept crew was sent as a 'courtesy'. This is not doing me a favor, this is not a courtesy, this is at best fraud. After signing the contract (under false pretenses), Jesse insisted I needed an additional pier ($3,155) because piers can no longer be placed under a window. A pier was placed under the window. Two other piers were not placed according to the county approved structural engineering ($1,850) diagram. Half the piers were installed in the wrong places, apparently according to Luis' whims. Yesterday Groundworks gave an estimate on properly placing those piers. That's how I learned that the improperly placed piers had lifted a joist completely off its foundation supports. This, too, will require additional expense to correct, before it damages my house - literally to the roof. I should have stuck with Groundworks. This is your cautionary tale - no one who values integrity, ESPECIALLY senior women, shouldn't hire FRC.

Foundation Solutions - Foundation Solutions offers repairs for all causes of foundation distress.

Foundation Solutions

(168 reviews)

Newhall

Foundation Solutions patched some cracking in our foundation and did an excellent job. Up front…read morethey gave the most accurate and realistic repair options available. They spent the time to explain how to regrade some of the areas around the foundation. They went above and beyond to make sure everything about the repair was done right, everything was fixed properly and we were very happy with it!

The foundation of my father's home in Concord was sinking, and we hired Foundation Solutions to…read moreremediate the issue. From start to finish, our experience was outstanding. This is an exceptionally well-managed company, and every step of the process was handled professionally and efficiently. We obtained three bids, and Foundation Solutions was by far the easiest and most competent company to work with. They were willing to work with us on their proposal, and throughout the entire project they demonstrated honesty, integrity, and a commitment to doing things the right way. They use Ram Jack which was minimally invasive. They truly run their organization like a well-oiled machine. Our project manager, Brett Everling, was excellent. He kept us informed every step of the way, from the project planning to the city permits and construction schedule. Communication was outstanding, and everything proceeded exactly as promised (and even a little ahead of schedule). For a project of this size and complexity, it's remarkable that everything went so smoothly. The Foundation Solutions crew was punctual, hardworking, and incredibly diligent. They hand-dug the excavation areas, which was no small task, and they treated the property with care. The amount of concrete that needed to be removed was kept to a minimum, and the concrete repairs afterward were done nicely. We did have one issue with the sprinkler system after it was reassembled, but Foundation Solutions responded quickly and resolved it without hesitation. That level of customer service reinforced that we had chosen the right company.

NorCal Ram Jack

NorCal Ram Jack

(54 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 October 2026

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