Ramon, Philly, and Josh did an incredible job executing the planned repairs to posts in my sub floor and installing piers outside the house. Ramon was SUPER communicative and responsive, gave reasonable timeline expectations that he met or exceeded, and provided clear explanations for what he and his crew were doing. Ramon checked in with me at different points in the installation to give me the chance to see the work in progress, point out factors impacting the installation process (e.g., removal of tree roots), and did a thorough walkthrough afterwards and provided me with the post-work elevations for documentation. Wore shoe coverings in the house and laid out work paper to avoid tracking dust/dirt. Ramon also pointed out that they did not end up needing to do some work that was in the original estimate and so put in a change order to reduce my invoice / get a refund. OVERALL: Glad this team was working on my house. Communicative, responsive, clear, honest. read more

Happy to report that the team immediately reached out upon my last update to make things right. They heard my concerns and started managing themselves to exceed the expectations I set with them. At the end of the day the work they did was good, but the communication needed to be better when our permit needed to be resubmitted with the city. read more

Derek, our inspector, was great! Super friendly, explained exactly what to expect and what not to expect. Took the time to do a thorough inspection and explained all findings in detail. This is a company with great ethical values! Thanks Groundworks! read more

I struggled with the star rating ok- 3 stars to good- 4 stars... somewhere in between. We were surprised that after so many texts, emails, phone messages were left that the Yelp review is what got their attention. It was a very quick response and not just by Wendy. Several people after that got involved with the final being the Operations Manager, Ethan. We appreciated being heard but still felt there was a disconnect in what actually took place, excuses were still being made while at the same time Ethan showed up onsite with the crew to make sure the job was completed that day. The crew by the way did an amazing job in an awful situation of a basement. The Crew Chief, so sorry I cannot remember his name but spot on and confident in his work he stayed until nearly dark to get the job done and cleaned up and it is amazing! We appreciate the work that had to go into getting this basement to look as good as it does, it was truly a nightmare. A 121 year old farmhouse. Thank you, thank you! The communication in this project was really the missing link throughout the process. We don't do this work and had no idea what to expect in the process, things were missed wheather by Groundworks or a 3rd party but we were not kept in the loop. To us this was a HUGE expense that took us a long time to pull the trigger to do. My suggestion would be to work on setting customers up for the experience. The timeline and any changes at all, communication is EVERYTHING! Then the work of course, which is AMAZING!! I will come back and post a picture of the work. I just felt it was important to follow up since they were so responsive. Thanks again! read more

I did a previous review but it was about how the one guy told me about more work that I might need. They were all nice as I stated before but the work they did on my floor was horrible! One area is higher and another area is lower. They cut the wiring under my house,I had to get someone to repair it.They also put a dent on the glass door frame in the front of my house. I asked them to come back out and see the work but they didn't only when I sent legal papers to them they gave me a call.I am a single mother ,I saved to get this done to my home and I am on disability as well.I didn't have the money to waste and that's just what I did.I am very disappointed in the work they did for me a month ago. read more

Just had a great experience with Groundworks. Derek Olsen came out and provided a very detailed inspection of our 1904 home. He was timely, courteous, a detailed. read more

I had written a very disappointing review on Yelp which I agreed to take down and replace Upon Groundworks seeing the bad Yelp review they have been giving immediate attention. I was originally speaking with another project manager (who will remain unnamed) that was very unresponsive, never returned calls...did not care. Once they saw my bad review on Yelp Groundworks assigned a new project manager to my case, Joshua Hoaglund. Joshua immediately called me to gain an understanding of what was going on. After a brief explanation, he scheduled a team made up of Leonard Starks, Jesse Santana, and Andrew Gomez out to my residence the following Monday. The team came out and first discussed with me the method they would use to stop the water from perking up and ask if I had any special requests. They began by shrouded all the shelving and etc in our basement to protect it from all the dust. Once everything was covered they began to jackhammer the cracks to open them up to allow installation of the lateral gutter system which ties into the perimeter gutter. They worked tirelessly on getting the work completed in a very timely fashion. They had the concrete removed, gravel and gutter installed complete on the first day and came back the following day to pour the concrete. When they were finished they made certain the basement was cleaned up to my satisfaction. Fortunately it started raining shortly after they completed the work to test the work they performed. Thus far we have not observed any water perking up. I feel fairly confident they have solved the problem and should it begin to perk up water they will come back. I would like to thank Joshua Hoaglund for his understanding and quick response. I also want to give a special thanks to Leonard Starks, Jesse Santana and Andrew Gomez for all their hard work to complete the work quickly and deliver what was originally promised. read more

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We scheduled an inspection for our new place, and Howard was a very experienced inspector. He took his time walking through the house. Overall, he told us the house was in good condition and that there was nothing major to worry about. Since this was an off-market property, the listing agent hadn't done any cosmetic repairs or touch-ups before the sale. So the house was still in its very "raw" condition, which made it easier for Howard to see and point out potential issues. That said, given his experience, I'm confident he would have been able to spot those issues even if the house had been fully cleaned up. His visit gave us a great sense of relief and a lot more confidence in our new home. He also gave us some genuinely valuable advice: don't rush into remodeling, and take our time finding a good GC. The remodeling business in the Bay Area can be a deep and complicated world, and as first-time homebuyers who don't know much about it, it can be especially difficult to navigate. Howard was not only very knowledgeable and experienced, but also a true gentleman. We really appreciate his time, honesty, and advice, and would highly recommend him to anyone looking for a home inspector or someone to help with foundation repairs. read more

I requested an inspection and quote for my driveway concrete repair and Derek Olsen came to our appointment in time, he explained about the company and how the process works, did a thorough inspection inside and outside my house, provided good feedback and provided me the quote. Overall, great experience and will decide soon on how to move forward with their service. Thank you Derek. read more

UPDATE Pros Had a wonderful experience with Jim (inspector/sales), Jose (foreman) and team and Cody W. Cons The delays in this project caused me cost increase in my next project (roof replacement) Some not so pleasant experience along the way I requested a quote with Bay Area Underpinning, but my inspection in November 2024 was with Groundworks. Bay Area Underpinning was transitioning to Groundworks. I had issues with JIM, which were resolved. I became comfortable to move forward with the project due to a wonderful conversation with Jim in resolving the issues. Poor communication/ no communication from the company ensued. I wasn't getting updates The only information I knew at that time was repair/installation schedule in June 2025. No communication or permit filed to my HOA, which was disclosed att the beginning, that led to further delays in the project. At this point I found out permits from the county were approved back in March 2025. Fast-forward I met Cody and Jose, who are absolutely phenomenal in the project. I felt safe during the project. I have already spread the word to friends and neighbors who might be needing Foundation Repair to contact Cody and request for Jose. read more

This is the worst experience I've ever had with a guy coming out to give me an estimate. I had 2 other companies come out to look at my situation so I kind of had an idea of what's going on. This guy made no attempt to diagnose my problem, blames it on a heater in that location (which I know was not the issue based on the previous 2 estimates) and shoves a general foundation package with 5 year maintenance in my face for 10k. Asks if his quote is higher or lower than the others, and when I said much higher, he tells me to go with the other companies and walks out asking for a good review since he told the truth. The truth about what? read more

My wife and I recently had work done on our house's foundation and Richard, Frankie, and Sean from the Sunnyvale location did an amazing job. They were always on time, worked hard, and cleaned up very well after themselves every day. I highly recommend Groundworks for all your future foundation needs *thumbs up* read more

Great service from Christian, Sean, John, Brian and Hugo and their teams! They were on time every day, very professional and considerate and worked hard every day! Highly recommend! read more

We had Groundworks out to look at sloping of our living room floor. Derek was super informative and knowledgable. He spent lots of time taking measurements and pictures. He inspected the crawl space and was transparent every step of the way. We were impressed by the level of professionalism and knowledge of Derek. While we have not contracted with them yet for the work, we would feel comfortable that our house would be in good hands with this company, they seem to take a lot of pride in their work and reputation. Thank you Derek for taking the time to explain what our problem was and for putting our minds at ease. read more

Found Shayan in a neighbor's driveway and got his card because we've had sinking areas in our backyard, and I've been worried about the foundation. He dropped by later and made an appointment to come by for a survey. He was very professional and friendly and explained everything. He measured all the rooms in the house and crawled around under the house to inspect. Afterward, he showed me his findings. Much to my relief, our foundation is solid now. Groundworks will keep the info, and I can have them come back in a few years to see if there is any movement. All this and there is no charge for the survey. Great experience! read more

Very professional. This is a great company. I would highly recommend doing business with them. John was so helpful and gave us great information. I never felt pressured at all! Diane read more

I had Chaz from the Rush City office come and gI've me a quote and I had zero issues with that experience. I cleaned everything and removed some additional concrete as agreed upon. when the crew arrived to raise the slab in my garage they made no mention of and potential issues and got to work. an hour later they were done and I was left with a slab that was still sunk and 1-2 inch gaps between the floor and building. the crew stated that the old mortar from the block layer hadn't gone back into the brick as expected and they couldn't do anymore and that that "had never happened before" I immediately sent photos and a text to Chaz and never heard back with a solution read more

Enrique came to my house for inspection of the foundation. I appreciate his work ethic and his explanation of the potential problems my houses foundation may have . He's also quite professional, and courteous. Thank you ! read more

Derek Olsen visited for initial inspection of our house crawl space. He was thorough in his inspection and discussed various solutions. He was very professional and on time, and spent serval hours assessing the condition of crawl space and foundation. I highly recommend Groundworks for initial assessment. read more

The miracle guys were here again. Last week Rico and Robbie were here to level the slabs in my back yard. By the way that patio now looks brand new !!! Yesterday Rico and Robbie were here again only this time to try to fix a much more difficult task. My air conditioner compressor sits on a pad that sits on a concrete slab that had fallen about four inches into the ground since it was installed decades ago. The compressor pad itself has been kept level with wooden plugs placed under it and on the concrete slab. There is a metal pipe that goes through the wall of the garage is attached to the compressor and it is not very flexible and could not be moved so it had to be handled very carefully so as not to break if the A/C moved up or down too much. Rico and Robbie used jacks to hold the A/C pad up while removing the wood slats below it then slowly lowered the pad with the jacks while carefully watching the pipe coming out of the garage wall so it would not break. Once that was done, the foam was shot into the ground beneath the concrete slab and WOLLA it was done !!! Again - the miracle guys were here ... again !!! read more

Do not sign a contract with this company until an independent structural engineer reviews your home. I have cracking in a basement foundation wall, with a sinking driveway on the other side of that wall. Groundworks sent a salesperson, not a structural engineer. The salesperson barely examined the driveway or the crack. Instead, he measured with a laser level from the level to the ceiling, part of which was finished and part unfinished (it's a basement). From that, he concluded my house had sunk an inch and a half, on one side only. Yet I have no cracks anywhere else, my windows and doors all operate correctly, and there are no other signs of sinking. When I asked about this, he said it had likely been hidden over the years by patched drywall and shimmed doors. Strange that someone would do all that work but not simply drywall over the foundation crack. It seemed absurd. Then came a quote for over $40,000, pressure to sign on the spot, and a warning not to bother getting other quotes because of their "low price guarantee." The quote didn't include removing a deck and a poured concrete patio pad, which I'd have to handle myself or through another contractor, for access. They mentioned possibly needing helicopters to bring in equipment. The proposed piers were nowhere near the actual crack, in entirely different parts of the house. They had us believing our home was at risk of sliding down the hill it sits on: real fear tactics to create urgency and get us to sign. Afterward we brought in a structural engineer. He said we needed no piers; our existing concrete footers were doing their job, there was no movement in the home, and you could tell by eye from the retaining wall that the area they wanted to pier hadn't sunk. The crack was simply the driveway sinking and pushing against the foundation wall. He recommended driveway repair and water mitigation like gutters, and said the $40,000 in work would have been a complete waste of money, fixed nothing, and we'd still have needed the driveway and gutter work afterward anyway. I genuinely believe this was a deliberate attempt to extract money from me. No trained professional could believe that measuring a finished ceiling against an unfinished one is a valid way to determine whether a house is sinking. Here's another reason I think they were dishonest: I asked whether we should raise the house back that inch and a half once piers went in. They said no, that raising it would cause damage, cracked windows and sheetrock. But if the house had actually sunk that much, wouldn't sinking have caused the same damage? They knew the house hadn't sunk, which is why they didn't want to raise it. Please, do not sign with them until an actual structural engineer has come out. Their repair would have cost $40K, plus another $15K for removing a large two-story deck, and it wouldn't have fixed the actual problem. Any company that sends a sales rep instead of an engineer to assess your foundation, then has that non-engineer diagnose the issue with just a laser level, tape measure, and scare tactics in a single afternoon, and prescribe expensive major construction, should raise red flags. The actual engineer needed detailed imaging, multiple tools, and days to produce a formal report. They said an engineer would review their plans, but never visit the home. I suspect that engineer would only confirm the work wouldn't cause further harm, not whether it was actually necessary. I'm sure spending $55,000 wouldn't have harmed anything except my finances. Don't let a sales rep diagnose your house's problems when they earn commission on selling you as much work as possible. They don't have your best interests in mind. Get an independent structural engineer; they're inexpensive compared to $40,000 in foundation work. These companies will tout their Google reviews and years in the industry, and try to earn your trust by mentioning that "an engineer" will review the plans. They rattle you enough that you forget no engineer is actually visiting your house before asking for an average person's annual salary. [Edited to remove the part about Google Reviews. Business manager says they're out there. I guess I just can't personally find them]. read more

Terrible company. Signed a contract and paid deposit and company has no showed on me twice now. Neither time did they communicate with me about issues, or give me notice that they were not coming. Both times they have cited broken equipment as the reason, but to not have any communication is absurd. Avoid this company if at all possible. It has been nothing but a headache. 2/18/2026 update- As an update to my prior review- I was able to get in touch with the GM who listened to my concerns and offered to refund deposit and also prioritize completing the job the same week. I had to decline, as I already signed with a new contractor. I do appreciate him taking the opportunity to correct the issue and the follow up communication 2/25/2026 last update- Never got my refund for my deposit that the GM said he would give me. Back to one star. Avoid company! read more

I worked with Ian Kee and was really impressed with his professionalism, timely responses and knowledge. I enjoyed working with him and was glad he was assigned to my project. read more

5 starts for David and Eddie who came out to help us. We find them extremely professional and knowledgeable. They did a thorough check around our house to make sure we don't have issues. We also appreciate how honest they are about the condition of our place. I would recommend them to our family and friends. read more

The inspector Derek came to look at our house. We had been noticing cracks in some of the walls and were worried about its evolution. Derek came on a Saturday morning at 9h. He was very communicative before calling to confirm. He showed up on time and clearly explained the process. Derek took his time looking at the outside of the house, doing floor level measurements and then investigating the crawl space. He was here a total of over 4h so it was a very detailed inspection. Derek then explained the possible solution (push piers) and laid out the cost. It is not cheap but in line with expectations. Groundworks also offers financing which is a convenience. Derek took detailed pictures and shared them. The experience so far has been great. We still need to decide when we would do the work but I would definitely recommend getting an inspection if you are concerned about your foundation. The sales tactics are obviously there but not pushy and the information provided is valuable whatever you decide to do. We haven't yet done the work so will update the review if and when we proceed. This review is just for the inspection. read more

Jon is very informative, he explained the whole process to my husband and I. I had researched all of my options well before he got here. Everything he told us, I had already knew, which he explained in depth for me to understand. He was very professional, and knowledgeable. A very great experience, and put my nerves at ease!! read more

Absolutely terrible phone person, tried to explain that I needed help with my driveway slabs being jacked up. Either she didn't understand or she kept sending me to the Better Business Bureau. I don't know why maybe there was just a disconnect just really poor read more

The start of our experience as rocky, but that was out of Groundworks control - or perhaps could be chalked up to growing pains of the company. That said, their work has been phenomenal, and we're truly very happy we had the work completed when we did. Ashton came to check on our supports and adjust things recently, and he's also gone out of his way to help us understand how a project we're hoping to undertake could affect the foundation. He even hoped on a call with our structural engineer to provide insight and information. This was completely beyond what we would have expected but genuinely kind. We're very grateful. read more

Alex was very informative on my project was through on my problem however the large tree next to driveway was extremely damaging my driveway beyond what groundwor could repair was courteous and friendly thanks for your help read more

Shayan was very professional and sensitive to the fact that he was not giving us great news. He did a good job of explaining the issues and the recommended solutions. read more

I booked an inspection with Groundworks. Alex came out and was phenomenal. Professional, communicative, knowledgeable. Informative but not overly sales-y. Will definitely turn to him for any work I need now and in the future. read more

It pains me to give a negative review as the initial dealings were actually quite good; They worked with me to get the price down a bit, the GF for the installation was dedicated to delivering a good product and the methods and materials were very good. However upon completion of the work, I had an issue which was unresolved. This left me having to go into my crawlspace and deal with an ongoing leak from the dehumidfier. I have reached out multiple times and the issue is unresolved. This is truly unfortunate as they were one of only a few contractors that were ready and willing to do the install right, giving me what I specifically asked for. I paid a correspondingly significant price over the others. The follow up to date has been very disappointing. read more

I requested for foundation inspection for our home based on a flyer. Guys scheduled an appt, came in, did a thorough check of floor leveling, foundation inspection, water leak signs etc. Fortunately, none of the issues were found. Cody and his colleague were very polite, didn't try to upsell, didn't provide any false reports. Very pleased with the company and the service. Would highly recommend! read more

Leveling a three-story house. Great job. Cost $75,000, but worth it. No more tilting floors. Excellent work crews.

Had an initial consultation and they were able to identify and assess the issues with my foundation. They were able to explain and walk me through what options were available to me to correct the issues I am seeing in my foundation. Very informative in the way to identify and repair the common issues for homes in San Jose. read more

We had several sunken slabs in our driveway, so we decided to go with the polyjacking service. Since there was a minimum project scope, James made sure they covered a large enough area to maximize the value for us. Rico and Robbie also went above and beyond during the job and did excellent work throughout the process. We would definitely use their services again! read more

If I could give a zero I would. I'm a real customer and am going to file a BBB complaint. I've heard great things about Bay Area Underpinning from friends. It got bought by Groundworks and the owner lives in Virginia Beach which should be a hint it doesn't care about customer service. We initially had Bay Area Underpinning come couple of years ago and they said our foundation was okay. No work needed to be done, but earlier this year Underpinning came and said we needed helix piers installed ($100k). Now looking back I would recommend getting a 2nd opinion including a structural engineer. They completed project and wanted final payment however they did not schedule final inspection and it's been almost 3 weeks since they were done. It took a lot of phone calls and emails with minimal response. We spoke to Will from customer service who finally got our debris removed from our house after it was hanging out for a week. But now crickets when it comes to final inspection which worries me because they already poured back in the concrete. There are other issues to mention in which you can message me, but definitely be aware of this company! Worst customer service for this amount of money read more

Alex H. came out to my project, took the time to ask me the issues we were having, how much information I knew about the potential fixes, educated me, and took a look around the property as well as did a full inspection of the crawl space. He came back with tests, video and pictures, let me know what part of the house we were looking at, issues and how they would go about fixing it. Explained the materials they would use, timeline, scheduling and what would needed to be done prior to their arrive. It was a great white glove service. read more

This post is only for Moses, the Foreman that works with Groundworks. He did the foundation work and was done in a day. If you get Moses as your Foreman, you will get same day responses. He is very helpful and will provide all the answers you have. In regards to Groundworks as the company. That will be another post unrelated to Moses professionalism. read more

The inspection and proposal process was done by a well qualified professional who took the time to explain everything. The company was fast to reply a d provide me with a highly informative inspection. read more