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Groundworks

4.6 (469 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 Masonry/Concrete 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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1 year ago

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

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Page 2 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

Miguel's Home Services - This is a finished project, the project was did a frenchdrain to protect the wall of the home from the rain water ! Customer was very happy!

Miguel's Home Services

(25 reviews)

I hired Miguel to paint a small alcove in my San Francisco apartment (about 7 x 5 ft). After an…read moreinitial site visit and quote ($900), communication became very difficult--texts went unanswered and he even canceled once because he mixed up the job date. I had changed the color from white to a blue-green and texted him the exact flat and satin finishes. He confirmed twice that he had the correct paint, but on the day of service arrived with white instead. He then went to buy the right color, and his son and another worker did the painting. Unfortunately, the first job was poor: uneven coverage on each wall, holes and trim hooks left unpatched, light ceiling coverage, messy edges, and paint spots on the floor. They also didn't leave the paint cans behind. Miguel wasn't present, even at the end to look it all over. When I contacted him a few days later, he agreed to fix it and returned a week later with the crew. They repainted the whole alcove, and the result the second time was satisfactory. While I appreciate that he came back and corrected the work, the overall experience--miscommunication, bringing the wrong paint, poor initial workmanship, and the delay it caused--means I wouldn't hire this company again.

Miguel provides a high quality service and was quickly available for installing a large French…read moredrain, channel drain and sump pump setup. His team was courteous and effective, they used quality materials, state of the art procedures, and communication was great. He was flexible incorporating our change requests, provided a competitive estimate and stayed within the estimated costs (plus my added voluntary changes) and time frame. Highly recommend for your drainage needs! Update: a day after the work was finished, we had an atmospheric river. Unfortunately, it caused water entry in two of our rooms, which did not have water issues before. For part of the drain trench, the team overlooked that the foundation switched from crawl space to slab foundation and did not dig deep enough, backing the water right into two of our finished spaces. I reported the problem immediately and the team worked quickly to mitigate the issue by reworking the affected area under their warranty. I had to give feedback during the repairs to the team onsite that the foundation foil and protection was properly applied to the deeper level, instead of just lowering the trench on the bare concrete.

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

NorCal Foundation Support

(88 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.

Groundworks - masonry_concrete - Updated May 2026

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