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Schedule a convenient time for our certified field inspector to visit your home and complete a thorough inspection. Trust your local experts at Bay Area Underpinning to take care of you and your home.
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Our Customers Trust Us
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Bay Area Underpinning came in recently and re-leveled all of the screw jacks in my floor both leveling the floor and getting rid of any…
Bay Area Underpinning came in recently and re-leveled all of the screw jacks in my floor both leveling the floor and getting rid of any unwanted noises. They did a great job thoroughly professional the foreman Aaron was wonderful not only did he do a great job but he was a pleasure to have around the house. Kudos also to Will Clark, who was totally responsive and professional throughout. Highly recommend this company.
gary valeriani
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We had an amazing service experience from David and Rico of Bay Area Underpinning. David and Rico were very professional, super nice, and…
We had an amazing service experience from David and Rico of Bay Area Underpinning. David and Rico were very professional, super nice, and worked hard on leveling my floor. They arrived on time after giving me a call earlier to let me know they are on the way. They put on shoe covers to make sure my floor is protected. They patiently listened to my inputs and addressed my concerns with competence and great care. And they would not leave until all the uneven floor areas are fixed to my satisfaction. This team deserves my 5 star rating.
Hung ..
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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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I called in Bay Area Underpinning for foundation work. They were wonderful answering my many concerns, I received prompt return calls, the…
I called in Bay Area Underpinning for foundation work. They were wonderful answering my many concerns, I received prompt return calls, the work was completed within an appropriate time frame, and the best thing he stayed with the estimate to the dollar. I loved the engineer, time frame, and minimal damage repair. I didn't know how my house was going to respond and even the marble and windows handled well. Unfortunately I didn't get the exact lift I wanted in the office even though they tried their hardest. My advice — call them when the problem first arises and the outcome and the house will lift with ease. I definitely recommend BAU. Because I live on a hill one pillar had to be covered – done. I also had a French drain installed to divert the water which was recommended. Thank you
citticat2
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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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My friend recommended this company and their tech Jason Dye to me, so I requested a foundation inspection/estimate. Jason is very…
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!
Ying W.
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We just had Bay Area Underpinning work on our house and we are very impressed with this company. They were very professional and got the…
We just had Bay Area Underpinning work on our house and we are very impressed with this company. They were very professional and got the job done efficiently. They kept us informed on the status and let us know what to expect. Thank you, Gustavo, Isaiah and Ramon for a job well done!
S Shulenberger
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I had a great experience with Bay Area Underpinning. They fixed my foundation, which was a substantial job, in a matter days, and did all…
I had a great experience with Bay Area Underpinning. They fixed my foundation, which was a substantial job, in a matter days, and did all of the engineering and permitting at a very fair price. I cannot say enough good things about Tyler, Angelo, and Louise, who did all the hard work. They were on time each day, very diligent, and patiently answered all of my questions. Then, when the job was finished, they cleaned the work area and left it in a better condition than they found it. That was awesome, and tells you what you need to know about these guys and the company. I couldn't be happier.
Ryan Rezaei
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Had BAU take care of a chimney that was leaning away from my home, fix my front door which would jam at times of the year and relevel my…
Had BAU take care of a chimney that was leaning away from my home, fix my front door which would jam at times of the year and relevel my floors. This was my second time working with BAU who installed screw jacks and leveled my floors several years ago. This time, Juan took a look at the problem areas, took measurements, made recommendations that fit my needs and budget and answered all my questions. Gonzalo and team came to work on my property. They worked quickly to install piers under the chimney and in the crawl space. They put tarp down to keep the house clean in the areas they needed access and cleaned up after themselves each day on the job. They answered my questions and throughly explained the problems and solutions they would implement to level the floor. Overall, I'm pleased with their work, being on time each day, and communication skills and would recommend.
Nghia Nguyen
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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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I scheduled an appointment with Bay Area Underpinning to check my foundation. Jim was very professional and explained everything me in…
I scheduled an appointment with Bay Area Underpinning to check my foundation. Jim was very professional and explained everything me in terms I could understand. I would recommend this company and Jim to anyone who may have foundation issues.
Margaret D.
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Foreman Andrew is incredible and a leader. We hired BAU to perform a whole house underpinning job from December 2022-March 2023. Our…
Foreman Andrew is incredible and a leader. We hired BAU to perform a whole house underpinning job from December 2022-March 2023. Our recently purchased 1950's home sat on expansive clay soil and had been settling for decades. The project was a big job and complicated by the winter rains that occurred throughout many days of the project. Andrew was extremely professional, knowledgeable about every aspect of the job and managed the entire project class and skill.He communicates very effectively and is transparent to assuage any concerns that we had on the project. He also shows up earlier than anyone, and works the entire day, rain or shine, in the mud and trenches with his team. This leadership was impressive. Since the completion of our project, he has remained available and came out to make some minor adjustments promptly and free of charge. Without any hesitation, I would entrust BAU to do my foundation work with the demand that Andrew lead the project. Thank you Andrew and your crew for a job well done.
Kumani Armstrong
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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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I had my foundation repaired and everyone who came to work was amazing. So helpful, polite and professional and with a great sense of humor….
I had my foundation repaired and everyone who came to work was amazing. So helpful, polite and professional and with a great sense of humor. They completed the project a day earlier than expected and really worked with me on creative payments. I would recommend this company to anyone who has the misfortune of a cracked foundation. Super pleased!!!!!!
Tracy P.
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Jim Rivera did a terrific job. His knowledge and professionalism really set him apart from the competition. Can't say enough good things…
Jim Rivera did a terrific job. His knowledge and professionalism really set him apart from the competition. Can't say enough good things about the quality service he provides.
Richard Weber
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I recently scheduled an inspection after concerns around my foundation and worked with Jim Rivera on my home. Jim was super helpful and…
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!
Zach C.
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Called Underpinning out for an estimate, and Richard's professional, patient, attention to detail, and educational approach gave me…
Called Underpinning out for an estimate, and Richard's professional, patient, attention to detail, and educational approach gave me everything I needed. I will definitely be referring this company to other's. Thank you.
Avis McQuèen
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Bay Area Underpinning is OUTSTANDING!! Cody, Andrew, Francisco, David and their underpinning and concrete teams did exceptional work…
Bay Area Underpinning is OUTSTANDING!! Cody, Andrew, Francisco, David and their underpinning and concrete teams did exceptional work installing underpinnings to stabilize our house, then replacing the concrete patio that had to be removed to do the stabilization. Everyone on the teams were efficient, courteous, highly skilled, and thorough. I cannot recommend Bay Area Underpinning highly enough- through each step of the process, from the initial assessment and work quote, to the work and follow-up itself, the staff and crews of Bay Area Underpinning ensured that I was informed, reassured, and we’ll take care of. They were thoughtful about doing their work efficiently and cleaning up after the work was completed. I cannot recommend them highly enough!
Julie Fong
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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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I booked the inspection appointment with Bay Area Underpinning to fix my house foundation problem. Brain came in right on the time we had…
I booked the inspection appointment with Bay Area Underpinning to fix my house foundation problem. Brain came in right on the time we had appointment. He was very detail oriented and explain all the problem of my foundations. He also proposed multiple fix plan customized to my situation. He was very friendly as well. Definitely recommend their service. Very professional.
Zheng Wang

Our Locations
2333 Courage Dr. Suite C
Fairfield, CA 94533
1161 N Fair Oaks Ave
Sunnyvale, CA 94089