T J Nelsen Marine Service Co
Sausalito, CA· about 38.8 mi from the city reference point
- Foundation repair
- Service area (estimated)
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
Contra Costa County, California
Foundation Repair Contractors near Antioch, CA
2 listed businesses serve Antioch, California. Each has a checked CSLB record and dated evidence of foundation repair work. Service areas and distances are estimates from city-level locations, not street addresses.
Businesses serving Antioch
Norcal Foundation Support
Davis, CA· about 40 mi from the city reference point
- Foundation repair
- Service area (estimated)
CSLB License Master List: 1037019 · source status “CLEAR” · checked October 16, 2026
Other nearby listings
These businesses are outside our estimated service area for Antioch. Ask whether they travel to your address.
Casey Ferreria Construction Incorporation
Atascadero, CA· about 182.8 mi from the city reference point
- Foundation repair
CSLB License Master List: 833752 · source status “CLEAR” · checked October 16, 2026
J R Spencer Construction
San Luis Obispo, CA· about 197.5 mi from the city reference point
- Foundation repair
CSLB License Master List: 412180 · source status “CLEAR” · checked October 16, 2026
John S Carter Incorporated
Santa Ynez, CA· about 255.3 mi from the city reference point
- Foundation repair
CSLB License Master List: 157378 · source status “CLEAR” · checked October 16, 2026
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Antioch listings at a glance
- Nearest serving business location: about 38.8 miles from the city reference point.
- Foundation repair: 2 businesses with dated evidence.
Nearby cities
All of Contra Costa County · All California counties
Checking a California contractor's license
California contractors are licensed by the CSLB. A license record shows its classifications, status and bond and workers' compensation filings. Check which classification covers your specific foundation or waterproofing scope.
Look up the business in the CSLB public search before you sign. A credential shows legal standing at most. It does not show that a business does foundation or waterproofing work, so every listing here also carries separate, dated service evidence. Neither is a rating of workmanship. How we verify listings.