T J Nelsen Marine Service Co
Sausalito, CA· about 32 mi from the city reference point
- Foundation repair
- Service area (estimated)
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
San Mateo County, California
1 listed business serves Atherton, 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.
Sausalito, CA· about 32 mi from the city reference point
CSLB License Master List: 549411 · source status “CLEAR” · checked October 16, 2026
These businesses are outside our estimated service area for Atherton. Ask whether they travel to your address.
Davis, CA· about 80 mi from the city reference point
CSLB License Master List: 1037019 · source status “CLEAR” · checked October 16, 2026
Atascadero, CA· about 160.1 mi from the city reference point
CSLB License Master List: 833752 · source status “CLEAR” · checked October 16, 2026
San Luis Obispo, CA· about 173.7 mi from the city reference point
CSLB License Master List: 412180 · source status “CLEAR” · checked October 16, 2026
Santa Ynez, CA· about 236.3 mi from the city reference point
CSLB License Master List: 157378 · source status “CLEAR” · checked October 16, 2026
All of San Mateo County · All California counties
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.