Alex came by gave estimate on things, Drive way ECT. Fantastic job thanks information about home and yard and what time frame and coat very informative read more

Hired Groundworks to fix/adjust/replace the pilons under the house to shore up and level our home's foundation. We got several bids and decided to work with them. Sean Robinson came out to inspect the house and give recommendations. He was very professional, explained the process and we felt very comfortable working with them. The team has been working on our project over the past several days and we are glad we hired them. The crew was friendly and professional, respected our home, communicated every step of the way. Highly recommend! Shout out to Michael S. (foreman), Joshua and Dylan. Supervisor Kyle was also great to work with. read more

i just had groundworks Inspector and Contractor Howard Glancy provide an inspection, an assessment, and a proposed plan to repair my foundation and add lifelong structure stability to my home. The foundation is moving and causing the house to drop on the downhill side. Howard took the time to point out all the visible impacts from the condition along with the exact differences from level demonstrating laser measurements. He also explained in detail what needs to be done and exactly how the Groundworks methods will resolve the problem. I entered into contract with Groundworks and also got financing immediately through GreenSky so the project could get on the books ASAP. read more

The soil under my house has always been damp in the winter, but this past year I actually had standing water. The hardworking Groundworks crew came out and created a sump pump system for me. They had to do a lot of digging, but I had very little to clean up after they left. The foreman, Ryan, was very professional and good with his crew. He answered any questions I asked and showed me photos as the work progressed. I am also pleased with the attentiveness of the inspector, Leo. He answered my calls right away and made the whole process go smoothly. I asked for a follow up inspection after AMZ Electric (and other great company) installed the outlets for the pumps. No questions, Ashton came out the next day and checked out everything. read more

Dillon Roach evaluation of my tight sqeeze crawl space was excellent. Dillion thoroughness help me make the correct decision to fix my foundation concern and prevented me from spending more then needed. I truly admire Dillon integrity and highly recommend Groundworks read more

Inspector very knowledgeable and very thorough got bid from them 3 years ago. Was able to give me close to same price but had to sign contract same day of coming out. Only downfall. read more

Howard came out for field inspection and quote. We have not done the work yet. He was knowledgeable about the different solutions.

If your building/home is sinking, Groundworks is your solution! My neighbor was getting their building lifted so I decided to get a quote since we are on the same soil. I was very impressed with Cody Wellner who came to give me a quote to just keep 1/4 of my building from sinking any further. He took photos in my crawlspace to show me the cracks that I can't see as well as showed me the cracks on the outside. I asked if I should put support in other parts of my building and he said it isn't needed. Because he didn't try to upsell me which I have felt other companies did try, I felt this company is one I could trust. The whole process was incredibly easy. Groundworks worked with my city to get the permit and once it was approved, scheduled the work quickly. Richard was assigned as the lead for the work. He was fantastic in keeping me posted on what the status and answered any questions I had. His crew (Fili, Frank and Sean) were all efficient, professional and did a great job. So if your building needs support, go with Groundworks! read more

Howard came out, and he was very professional, very knowledgeable, and very helpful. We really liked his style!

Very efficient. Honest. Howard was my inspector. Went all around house, inside and out inspecting. Very thorough with his explanations. read more

Customer service and pricing. Very very expensive and company takes advantage of customers.

I made an appointment with GW, I told them I'm hours away round trip and would arrive a day earlier so I'd be there the next day. They called the night before and asked to change my appointment one hour later-no problem. The next day an hour before my appointment they wanted to change it to the next day. I needed to get back home and there was no way I could stay. I'd already lost 11/2 of work. I get a call from their appointment department stating I cancelled my appointment and do I want to reschedule. So the rep Adam lied to her, saying I cancelled, WRONG, he failed to keep his appointment!! No apology, no return calls. I'm glad I didn't have them do the estimate or work as I'd of felt they were lying to me. They lied for an appointment, imagine trusting them to give an honest evaluation on something as important as foundation work? Mr. Rowe, I'm disappointed you stump for this company. Absolutely disappointed! read more

This office is newly established, might not have enough man power, Andrew is a great guy, straight forward and easy to communicate.

I had a listing in Livermore that we needed a bid for bolting the foundation. They were on time and gave a great competitive bid.

I recently scheduled an inspection after concerns around my foundation and worked with Jim Rivera on my home. Jim was super helpful and knowledgeable in assessing the severity of my foundation issues, while also assessing other parts of the home that might be contributing to potential damage in the future. I was surprised how helpful he was in helping me understand different scenarios, planning for near-term/long term fixes, and putting my mind at ease over the foundation issues. I'd definitely recommend working with Jim and his team! read more

We hired Groundworks to help us fix a leak caused by surface/groundwater. Howard arrived the same day I called in to request a consultation. He was very patient and explained to my mother and I what needed to be done. When Ryan, Wyatt, and the rest of the team arrived, they were quick to realize that adjustments to the original plan needed to be made and quickly pivoted with a new plan. The crew worked tirelessly digging trenches and laying down pipes underneath the house in a small crawlspace. I appreciate all their hard work! The project was completed in 3 days. Ryan (Foreman) took the time to show us pictures of the work from start to finish and patiently explain the how's and why's of the process. Truly appreciate the entire team!! THANK YOU!! They deserve a bonus! read more

Patio slab shifting, creating 'pool' effect when it rains. Contacted Groundworks for evaluation/solution. Our apt with Rocco Harriman on 7/29/2025 was positive and informative. Rocco presented himself in a professional manner, extremely knowledgeable and eager to answer customer questions. He did not pressure a sale and was honest about my 'unique' situation. I would hope that Groundworks views Rocco as a valued employee. A pleasant experience. Carol Stoffer read more

My friend recommended this company and their tech Jason Dye to me, so I requested a foundation inspection/estimate. Jason is very responsive. He would text me and let me know the ETA when he was on the way. After he arrived, he checked everything very carefully. He gave me some good suggestions to help maintain foundation in a good shape, and even helped me set up the extension pipes from gutter downspouts. I enjoyed our communication and is very happy with his service. And he is super friendly to my dog! read more

Our 70+year-old house, on a hill, in earthquake country, with clay soil - developed a few problems over those many years. Inspector Howard Glancy of Groundworks, helped us make a plan for stabilization. Groundworks took care of permits and inspections. A crew installed 15 piers down to bedrock (about 100 feet) and eight adjustable jacks under the house. The Groundworks team was headed by Sebastian Hernandez. Skilled technicians Maui, Anthony and Jose worked efficiently to complete the job in a week. The Groundworks team was helpful with answers to our many questions, and were always patient and respectful of us as clients. Great job! read more

We had our foundation pier supports replaced last year and had a great experience with value for the price compared to other quotes as well as peace of mind that we made the decision for the best option. This year was our first annual service which comes with readjustment of the jacks. Ashton the service manager personally did the job and provided great explanations of what he saw with pictures and what was happening in terms of risks and things not to worry about. He took care of putting insulation back and even plugged a small hole which rodents were sneaking into the crawl space. I definitely recommend this company for anyone who is looking for foundation work on their home. They don't oversell and prices are good value and the people they have are great. read more

Our floor was very bouncy so we contacted Groundworks for an inspection. Cory gave us a thorough explanation of the problem and a recommendation for the fix. So glad we proceeded with this project. The crew was very professional with clear lines of communication every step of the way. Ramon, Corwin, Irvin and Alec all handled the finishing touches to complete the difficult project to shore up the weakest area. No more bouncy floor. No more shaking in the kitchen when the washing machine does the spin cycle. We highly recommend Groundworks. read more

Howard Glancy arrived to inspect the cracks we have been observing in our house both on the inside and outside walls. He was very informative and detailed in his explanations that made us understand the root cause of the problem. He also provided us with different financing options that made it easy for us to decide. We decided to move along with the project with Groundworks. This review is only for Howard Glancy and his inspection and quote. read more

Jeff Garber from Groundworks/Underpinning was AMAZING! Let me just start off by saying, we did not pay anything for our walkthrough/inspection. I've been a realtor for 18 years but this was for our personal property in Walnut Creek and I was extremely worried we were going to hear from Jeff that we need to do six figures worth of work. We have experienced some shifting in our floors, walls, thresholds and I was CONVINCED we needed major repairs. However, Jeff brought us a huge sense of relief by not only telling us we didn't need any major repairs and what we were experiencing was normal for our age home. From my extensive experience working with vendors, they almost always push some sort of work, unnecessary or necessary. I can't thank Jeff enough for his honest evaluation and helping me sleep at night again after 2 years of what felt like constant worry. It just goes to show, there are still good people with values out there. And, I can tell you when that time does come, he will be our first call!!! Jeff thank you for your true professionalism!! read more

BAU did a great job on my ADU that had a serious moisture problem that was causing the building to deteriorate. I couldn't remove the tile without replacing it all at a large expense so they did the whole job in a very cramped crawl space. The guys they sent out were great and finished with everything in one day!!! read more

We were extremely satisfied working with Goundworks and particularly with Wyatt Serta who was the foreman on our job. Prior to the job, Wyatt came several times to make sure that the problems with groundwater under our house would be addressed properly. This included going underneath to see where the water intrusion was occurring during the rain! He is extremely knowledge about planning the installation of a sump pump and vapor barrier. He is also patient and willing to explain in detail each step in the process. We also observed him working with his crew. He communicated with them in a friendly and supportive manner. It was a pleasure to have him in charge of the vapor barrier installation at our house. Amy L. Santa Cruz read more

Jason Dye was very helpful. Took a look at the foundation and answered all of my questions.

These guys are a class act! I called Groundworks to help with a problem in my crawlspace. It turned out that Groundworks was not a good fit for what we wanted to do, but both Wyatt and James took their time to help us find the right people to fix the problem. I don't think I could have gotten my problem resolved without their guidance. They were being super helpful, even though it did not lead to do job for them. It's hard to find that kind care and integrity. I cannot say enough good things about these guys. Thank you! read more

Chris Murray was very friendly, and conducted a thorough and honest inspection. He gave us several excellent repair options, all of which were reasonably priced. He did not push us to agree more repair work than we could afford. I would definitely recommend BAU for foundation repair work. read more

Jim came out to inspect issues that were brought up during my home inspection report prior to purchase. He fully assessed my personal situation and gave me a variety of solutions and options to fit my personal needs. I very much appreciated that he prioritized the needs of the customer. read more

Hi everyone, I don't usually write reviews, but this person and this company is outstanding. I bought my house in 1987 and it had (and still has) a basement that was wet and a sump pump. In the year 2021 I hired a contractor to remodel my 2 bathrooms and when he removed a part of the floor, the basement was covered with black mold and some of the walls needed to me taken down. After 9 weeks in a motel and several thousands of dollars, I was able to move back in. Now the basement is still as wet as ever, and I am uncomfortable living here, can't sell even with a disclosure for reasons I won't go into now. Then I found Mark Brill at Bay Area Underpinning. He came here and spent hours investigating my situation, and coming up with a solution with a dry basement guarantee! Out of the many companies I have had here, Mark was the very best! I'm 78 years old and have problems hearing, but Mark is extremely knowledgeable easy to be with, patient with me and repeated and explained everything over again! Mark also took lots of pictures, explained them to me, where they are in the basement and clearly what was needed. It was because of Mark and his sincere explanations of my situations and his company I chose Bay Area Underpinning. read more

Requested a foundation inspection after a friend showed me a few un-orthodox frame reinforcements in our large (18' high) crawl space. I was scheduled 1 week out and the company maintained contact to advise re: our inspection. Jim arrived on time after texting he was enroute. He was equipped with state-of-the-art measuring instruments that quickly verified minor movements and advised the previous reinforcements "were not doing anything" and there was no issue to worry about ! Impressive company - that I will recommend to anyone needing foundation analysis and/or work. THANX Jim, your expertise helped understand our construction & movement. I'll sleep better read more

Scheduled an appointment and the inspector didn't show up or respond to messages. Unprofessional

Bay Area Underpinning just finished a 7 week underpinning project on my home. I am so pleased with the quality of their work, their professionalism, their knowledge of the work involved and the integrity of everyone I dealt with at Bay Area Underpinning. Lance, the team lead on my project, along with his co-workers, Jake and Mike worked tirelessly and relentlessly in my 4' crawlspace in several inches of mud, to ge the job done. Lance's extensive knowledge and experience with underpinning and project management reassured me that I had made the right decision to go with Bay Area Underpinning. read more

Groundworks - Foundation Repair Near Me - Sunnyvale, California

Isaac came out to inspect a rotten wooden post, and patiently explained the issues and recommended remedies. Great to know the damage is not structural. Impressed by their expertise, honesty and professionalism. Would recommend! read more

The best team at the job, lead by Alex Alejandro two more persons Adrian and Gustavo fixed our foundation issues with piers support for foundation and screw jacks for the floor to level up. I would recommend this team anytime, highly professional and thorough at what they do and on top very nice friendly and polite people. read more

Foundation issues are scary but I had a great experience with this company. Their communication was good and they explained everything to me so that I understood. Always on time and finished the job to my satisfaction. Highly recommend. read more

Strongly recommend Bay Area Underpinning if you want to check the situation in foundation. And big thanks to Joe! We would like to get our foundation examined after moving in our new home. Joe gave us a thorough overview about the house. He measured the level in every corner of the house and went into the crawl space. We were able to know more about the home after the checkup. Got lots of useful information, even things we don't know before. Glad that we chose this company. read more

Highly recommend them. Jason Dye visited me to evaluate the condition of my foundation. He is very knowledgable and meeting him was very insightful. Prompt response for all questions and performed a detailed analysis. read more

When my wife and I started this endeavor we took three estimates. We decided to go with BAU and I continued to ask for the A team. The job started with the Fairfield location but unknown or communicated to us it switched to the Sunnyvale location. I continued to ask for the A team and was told "all of our crews are the A team" but there was always "growing pains " as they put it. I continued to tell them, you have growing pains but I am paying the price! I asked our sales person "how would you know these guys are the A team when they have only been with you a month! One issue after another and the poly urethane team showed up on a Friday as scheduled but couldn't do the job since they weren't ready. This job was supposed to take about a week but took 4 weeks because it was one problem after another! I felt like a hostage in my own home since I didn't know when they were showing all the time.One of the foremen and I agreed on three different issues and without discussing or saying anything to me he changed direction on all 3! Communication on this job was nonexistent! When the actual lifting of the house came I finally felt good since a man named Alec showed up and he was awesome! Problem was he left right after. I requested Michael to perform the poly urethane injections but again was told no. The crew that did the injection lifted too much and the man door in the garage wouldn't open! Finally the solution was to break out half the concrete in the garage and pour new. Now we find ourselves waiting a month before being able to park in our garage. Again we are paying the price. They helped themselves to a few tools, hose, etc. and broke my ladder. All of this being said, they did make everything right and bought me a new ladder. All in all, I will say I would probably hire them again if needed but only if they square away their growing pains and "communicate" with me! I hope this helps someone out there. read more