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Proudly serving Sacramento, San Jose, Stockton, Oakland, Elk Grove, Santa Rosa, and the greater Bay Area.

Crawl Space Repair in Vallejo, CA

Get your crawl space assessed and repaired by Bay Area Underpinning’s crawl space repair service professionals in Vallejo, CA.

Bay Area Underpinning CFI working at job site.
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Known Signs of Crawl Space Problems – Crawl Space Repair Vallejo, CA

Some of the most common signs of crawl space problems are:

  • Doors and windows that don’t open and close properly
  • A musty odor in the crawl space
  • Pest and mice infestations
  • Wood rot
  • Condensation
  • Increased moisture levels
  • Increased indoor humidity
  • Cracks in interior drywall surfaces
  • Sinking floors
  • Floor joist problems
  • Increased energy bills

Bay Area Underpinning – Other Services Offered

Slabjacking

Slabjacking is a technique used to raise and relevel sunken concrete using polyurethane foam injection. Sunken concrete slabs such as sidewalks, driveways, garage floors, patios, pool decks, etc., are trip hazards. Slabjacking is a minimally-invasive procedure that can help eliminate such hazards.

Small dime-sized holes are drilled into the affected slab, and then polyurethane foam is injected underneath the slab. The foam reacts and expands to fill the void, raising the concrete.

Helical Pier Installation in New Construction

Helical piers are ideal for new construction projects requiring a deep foundation system. They can be designed to provide the support you need to prevent your new building from settling. These large corkscrew-shaped pins offer many benefits, including:

  • No heavy excavation required
  • They can be installed quickly
  • They’re suitable for installation even in environmentally sensitive areas
  • They can be installed year-round
  • The piers are load-bearing immediately after installation
  • They offer increased stability due to multiple bearing plates

Bay Area Underpinning – Service Area

Along with serving Brentwood CA, and its surroundings, Bay Area Underpinning also serves other areas across Northern California. To view the full list of areas we serve, visit our Service Area page.

Bay Area Underpinning service area

Proudly Serving Northern California

Northern California trusts Bay Area Underpinning for reliable crawl space, foundation, and concrete repair services. Contact us for a free inspection!  

Top Cities We Serve


Why Choose Bay Area Underpinning for Crawl Space Repair?

As crawl space repair professionals in Vallejo, CA, since 2005, we have what it takes to fix your home’s foundation problem, leaving you with a structure that can last for decades to come. Call us today to book an inspection.

Our Process

Schedule Free Inspection

One of our contact center representatives will reach out to you to determine your problem and set the best time for one of our certified field inspectors to visit your home.

Consult with Our Certified Inspector

Our certified field inspector will visit your home to observe the problems in your home and inspect other areas of your home that may have been impacted.

Installation of Customized Solutions

Our professional production crew installs patented, American-made solutions in each home with care and strives to leave the area better than we found it.

Schedule Inspection

What Our Customers Are Saying

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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!

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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…

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!!!

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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!"

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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!

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Emanuel Knight came and repaired a leaking sprinkler hose. He was courteous, professional, and knowledgeable.

Emanuel Knight came and repaired a leaking sprinkler hose. He was courteous, professional, and knowledgeable.

Our Locations

Fairfield

2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089