California's foundation repair and waterproofing companies are spread between the Bay Area and Southern California. The largest groups are around Oakland, Los Angeles and San Diego, with more in Santa Rosa, Sacramento, the San Fernando Valley and north San Diego County. Each city page lists the companies with an address in or near that city, with foundation repair companies first.
Many of these companies serve a wide area, so a company listed under a nearby city may still come to you. Check the service area on its listing and call to confirm. Small towns with a company of their own are listed under Smaller towns.
Every listing shows the company's Google rating, its phone number and the services it names on its own website. Before you hire anyone, look up the contractor's license with the Contractors State License Board.
Featured foundation repair companies in California
What a featured listing costs · from $29 a month
All cities
Smaller towns
These towns have fewer than 2 listed foundation repair companies and are too far from a larger city to share its page.
Frequently asked questions
How many foundation repair companies are listed in California?
108 at the last update on 2026-10-21: 17 city pages and 16 small-town pages. A city gets its own page when at least 2 companies are based there; a company in a smaller nearby town is listed on the closest city page.
Which California city has the most foundation repair companies?
Los Angeles, with 10 listed. Oakland is next with 10.
Can I be listed here?
If you run a foundation repair company business in California and are not listed, use the claim form and we will check the details and add you. Basic listings are free.