Fairfield, CA Branch
(707) 296-9815
Appointments available
as early as tomorrow
Warning Signs You Don't Want To Ignore
See why your neighbors trust Groundworks Specialists to protect their home
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We had Daniel come to inspect the foundation of our townhouse. He is very professional and patient to answer every questions we asked. He…
We had Daniel come to inspect the foundation of our townhouse. He is very professional and patient to answer every questions we asked. He even came up to help us communicate with our HOA to explain everything they concerned. Thank you Daniel!
Jian W.
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Had Bay Area Underpinning come out for a free estimate to check my foundation. They verified the appt 2 days before along with day of, I…
Had Bay Area Underpinning come out for a free estimate to check my foundation. They verified the appt 2 days before along with day of, I got a link as to where the technician was and he was on time. Ronald was very professional and informative. He was able to answer all my questions in a way I could understand and I got a copy of all the findings. Would definitely recommend for anyone needing an inspection.
Lindsay Pertgen
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I recommend Bay Area Underpinning because the agent they sent to inspect my crawlspace told me the truth. He could have tried to sell me…
I recommend Bay Area Underpinning because the agent they sent to inspect my crawlspace told me the truth. He could have tried to sell me work I didn't need, but instead, he explained to me why he thought I didn't need it. I wish all contractors were this honest! Call them for an inspection. You can trust them. I only wish I had a job for them! Randy Sonoma
Randy C.
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Several months ago, I noticed that doors in my house were no longer closing and latching. Specifically, my front door no longer locked…
Several months ago, I noticed that doors in my house were no longer closing and latching. Specifically, my front door no longer locked completely. Once I got it fully locked I could no longer open my front door anymore, so I knew I had foundation issues. I called Bay Area Underpinning to come look at my foundation and do some measurements. We discovered that my front living room was sinking approximately one and a half to 2 inches. The crew, Lance Sladek, Jake Hall, and Eddie Shaw, crawled under my house and dug 30 to 40 foot holes in the ground to install piers that would lift my foundation. These gentlemen worked in very cramped dirty conditions in 90-100° weather. I was extremely happy with their work and their dedication to doing the job correctly. My after the foundation lift, my front door as well as several other doors in my home were able to close and latch again.
Anonymous Author
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1. Call Center ***** – they took the call after 6:00 PM and were extremely professional. Guy on the phone (sorry I didn't write is name…
1. Call Center ***** – they took the call after 6:00 PM and were extremely professional. Guy on the phone (sorry I didn't write is name down), was so kind and emailed confirmation immediately. 2. Pre-Visit Confirmation ***** – Email, text and phone calls to confirm the time and prep me for the visit. Incredible. Nobody is doing this right these days and BAU absolutely has it nailed down. 3. Estimator ***** – I wish I could offer more than 5 stars. Joe Le Bel is the most professional tradesman I've met in a long time. Others are good too, but Joe is the gold standard. He sat with me to ask what I was concerned about and what was important to my family. Who does that???? Oh yeah, Joe did. So comforting. Joe was professional and respectful of our space. Was careful to be conscientious about where he placed his gear, tools and instruments. Super clean going under the house without tracking dirt and debris back into the house. (The inspectors from HomeGuard could definitely take notes on this!) Then, once Joe finished, he sat down with us and talked us through all the different aspects off his inspection. What an extremely positive interaction. I would 100% recommend BAU and Joe. Can't get any better than this. Thanks BAU for a great culture of excellence. Thanks Joe for being such a good human and professional!
Michael Wilson
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The permiting process took a long time, but that's not their fault. The cost was very high but competitive with another contractor.
The permiting process took a long time, but that's not their fault. The cost was very high but competitive with another contractor.
Anonymous Author
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When we had our 1960s home underpinned, the consultant arrived on time to give us a quote. He gave us different options for work to be done …
When we had our 1960s home underpinned, the consultant arrived on time to give us a quote. He gave us different options for work to be done and had solutions to cutting cost on things that weren't absolutely necessary. The work was done within a week. All of the workers were professional. Something that stood out the most was the way the workers communicated with each other. They weren't your typical construction crew in this sense. They were very kind to each other and supportive of each other, even when they were in a difficult situation. This isn't common in construction. As for the cost, it was what we had expected and we don't have any complaints. Our house is level now and doesn't feel like we're drunk walking in areas that were previously sagging. There's a reason Bay Area Underpinning is #1 in the area. Would recommend, even if they aren't the cheapest- they get the job done right.
Tommy B.
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Our house is 85 years old and has some cracking on the stucco, so I called for a free inspection to see if the problems were something we…
Our house is 85 years old and has some cracking on the stucco, so I called for a free inspection to see if the problems were something we need to be concerned about. Daniel, our inspector, was prompt and friendly and explained everything he was doing and seeing as he took measurements and inspected the foundations. He said that while there are things we can do for earthquake retrofitting (and he did recommend a separate company for that if we wanted to do it) our problems were mostly cosmetic and nothing to worry about. He also took his measurements to be scanned in at his office and kept on file so that we can have him back out for another inspection in the future to compare, again, purely at our discretion. He was respectful, friendly, and straightforward and answered all of my questions. I'd definitely recommend them.
Harmony Obeso
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Everything looks good after the work was done. I can finally close my bathroom door. I appreciated the fact that the foreman Erick Baez,…
Everything looks good after the work was done. I can finally close my bathroom door. I appreciated the fact that the foreman Erick Baez, went over what was done as they were done. I also appreciated that the two installers Manny Erickson and Jesus Villagomez also communicated with me after they were done to reassure that they did a proper job installing the jacks. Very good to know how the process was going. Great job.
Anonymous Author
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I recommend Bay Area Underpinning for an important reason: honesty. After careful inspection, their agent, Richard, told me the truth,…
I recommend Bay Area Underpinning for an important reason: honesty. After careful inspection, their agent, Richard, told me the truth, which was that my crawlspace was fine, that I had no problem with moisture or settling. And then he took the time to show me why. He could have tried to sell me on doing a lot of work, but he didn't. This kind of honesty is impressive! Call Bay Area Underpinning to inspect your crawlspace. You can trust them. If they say it needs work, hire them to do it. I am almost sorry I couldn't!
Randy Cook
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Mike and Jake leveled the fireplace. Quick and clean
Mike and Jake leveled the fireplace. Quick and clean
Lori Glad
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This company just finished installing 5 piers for my house. They did an outstanding job!! Jacob was in charge of the project and he…
This company just finished installing 5 piers for my house. They did an outstanding job!! Jacob was in charge of the project and he informed me on every step of the project. The team was very professional and courteous. They cleaned everything up to perfection. If you need foundation work, this is the company. The cost was reasonable as well. Highly recommend!!! Thank you Jacob, job well done!!
Chris E.
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We have a long horizontal crack on one side of our external wall. Although I had serious concern there is a foundation issue, Micheal Silva …
We have a long horizontal crack on one side of our external wall. Although I had serious concern there is a foundation issue, Micheal Silva from Bay Area Underpinning came in and did thorough inspection with detail measurements and drawing and concluded that we don't have a foundation issue with great honesty. He also further inspected from the crawspace entrance and the stucco to let me know what's the potential issue outside the foundation concern. His professionalism, diligence, honesty, patience and extra step to help in figuring out the problem are truly appreciated.
Bei L.
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Last week, my car cut off while exiting the highway in Dixon, and I was stranded in a dangerous spot. Fortunately, your employees who were…
Last week, my car cut off while exiting the highway in Dixon, and I was stranded in a dangerous spot. Fortunately, your employees who were driving a Bay Area Underpinning truck, Erick Baez, Jesus Vallegomez, and Wesley Almaza stopped to help. They worked hard to try and troubleshoot my car and even pushed it out of the street to a nearby gas station while I waited for AAA. Their professionalism, kindness, and respect were incredible. I'm so grateful for their assistance, especially since I’m a woman who was alone in an unfamiliar area in the evening. Thank you, gentlemen!
Desiree Roberts
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The team I worked with at BAU was great. I hired them to repair some minor vertical and horizontal foundation cracks that were found in a…
The team I worked with at BAU was great. I hired them to repair some minor vertical and horizontal foundation cracks that were found in a recent general home inspection. Everyone who came out was upbeat, professional, punctual, thorough, and highly detailed. Hunter came out first to check the entire foundation and give a free estimate. They then split the work up into two dates, and each crew was great. Michael and James came out first for the initial round, and then Alexander and Gabe came out to wrap up the last few areas. The guys were always on time, which is greatly appreciated. Both repair teams also did their own additional checks of the surrounding areas, also greatly appreciated. They were also able to provide before and after pictures, and were respectful of the property.
Anonymous Author
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Within a few months of buying our first home, we noticed some troubling signs: bedroom doors swinging open or closed on their own,…
Within a few months of buying our first home, we noticed some troubling signs: bedroom doors swinging open or closed on their own, “bubbles” and creaks in sections of the newly renovated floors, and significant cracks splitting the concrete in our garage. Although two general inspectors assured us that our house was level, we reached out to Bay Area Underpinning (BAU) for a more detailed assessment—and we're so glad we did! Inspector Christopher Murray conducted a meticulous inspection with radar equipment. While technically our house was level, Christopher uncovered that our foundation was sinking by inches in multiple areas, explaining the issues we were experiencing. Though the news and associated repair cost were a bit daunting as new homeowners, Christopher’s knowledge, professionalism, and clear answers to all our questions reassured us that we were in good hands. With confidence, we decided to proceed with BAU for the repair. Fredy Mora and his crew did exceptional work with the demo of the old concrete slabs and the prep for lifting, working quickly and efficiently. Fredy’s positive attitude made the process smooth, and his team was thorough and dedicated from start to finish. A special thank you to our lift project manager, Kevin Gaeden. Kevin was an outstanding communicator, keeping us fully informed and addressing every question promptly. His attentiveness made a huge difference throughout the project, and we felt reassured every step of the way. Esteban Ibarra, a crewmember on the lift team, also did superb work, handling the hands-on details with skill and care. Both Kevin and Esteban even went above and beyond, taking time to fix a jammed bedroom door that had shifted with the house lift. While foundation issues are never easy, we couldn’t have asked for a better team. We’re incredibly grateful to Bay Area Underpinning for their expertise, professionalism, and exceptional service. Thank you, BAU!
Anonymous Author
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I had Joe inspect the crawlspace of my home, and I couldn't be more satisfied with the experience. First off, he did the inspection for…
I had Joe inspect the crawlspace of my home, and I couldn't be more satisfied with the experience. First off, he did the inspection for free, which is rare these days! Joe was professional, punctual, and thorough in his inspection, explaining everything he found in a way that was easy to understand. He took the time to ensure I knew what was going on beneath my home and didn't push any unnecessary services. I highly recommend him for anyone in need of an honest and detailed inspection. Definitely a 5-star experience!"
Summer X.
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We had Jonathan Falcone assess the foundation and sloping issues of our home, and he's been incredibly accommodating throughout the process….
We had Jonathan Falcone assess the foundation and sloping issues of our home, and he's been incredibly accommodating throughout the process. He thoroughly explained the necessary work and has been attentive and helpful with the quoting and planning stages. We're very satisfied with the experience so far and we are eager for the foundation and underpinning work to begin soon.
Elena F.
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We just bought a house, and literally every single metal pier in the crawlspace was rusted out. Bay Are Underpinning came in and did an…
We just bought a house, and literally every single metal pier in the crawlspace was rusted out. Bay Are Underpinning came in and did an awesome job. Their inspector Aaron was super thorough in assessing the damage and explained everything in detail. Then, the repair crew of Eric, Jesus, and Andrew came in and knocked out the entire job in a day — a huge relief considering we had a ton of other work we need to get done before moving in. The work is not cheap, but they offer financing options and stand by their work, so I feel very good about the entire job.
Garrett Calcaterra
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Jonathan Falcone was great to work with. He visited a couple times and walk through multiple options of design to rectify the sloping…
Jonathan Falcone was great to work with. He visited a couple times and walk through multiple options of design to rectify the sloping issues of our house. He was attentive and took multiple calls to help with the review and planning process. I would highly recommend to work with Jonathan! Looking forward to the project kicking off and the sloping foundation to be fixed!
Lionel F.



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