Skip to Main Content
Bay Area Underpinning truck in front of house

Services We Provide In Northern California

CFI injecting poly into concrete driveway to level.

Concrete Lifting

Bay Area Underpinning offers the exclusive PolyRenewalâ„¢ system, a proven solution for lifting and securing sunken concrete slabs.

CFI inspecting crawl space.

Crawl Space Repair

Bay Area Underpinning provides expert crawl space repair to address sagging floors, weak joists, and insufficient support.

Crew installing piers

Foundation Repair

Bay Area Underpinning is your partner for foundation repair services in the Bay Area. Safeguard your home with our expertise!

man carrying helical pier

Commercial Services

Bay Area Underpinning provides professional commercial services. Enhance the safety of your property with our reliable solutions.

Our Locations


2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089