NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors
Plumbers in Castro Valley, CA
23 licensed plumbers · every license checked against the issuer's file
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01San Lorenzo, CA · (510) 427-6710
CA-CSLB 1087221 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
San Leandro, CA · (510) 910-3586
CA-CSLB 599650 · C36Plumber
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Hayward, CA · (510) 760-3609
CA-CSLB 373927 · C36Plumber
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San Lorenzo, CA · (510) 876-3549
CA-CSLB 1083613 · C36 C42PlumberExcavation, grading and paving
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Hayward, CA · (510) 755-0160
CA-CSLB 1075093 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (408) 892-2741
CA-CSLB 1121317 · C36Plumber
License activechecked Oct 24, 2026
San Lorenzo, CA · (415) 297-0624
CA-CSLB 1092278 · B C7 +2General contractorElectricianPlumber
License activechecked Oct 24, 2026
San Lorenzo, CA · (510) 499-2988
CA-CSLB 1115605 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 586-1575
CA-CSLB 1050803 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 485-1758
CA-CSLB 1106051 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
Hayward, CA · (510) 415-0940
CA-CSLB 1101986 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
San Leandro, CA · (415) 823-3795
CA-CSLB 961915 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 856-7982
CA-CSLB 1136319 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 300-4166
CA-CSLB 1150855 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 427-7009
CA-CSLB 1105875 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (510) 258-4498
CA-CSLB 1088697 · C36Plumber
License activechecked Oct 24, 2026
Hayward, CA · (310) 493-1648
CA-CSLB 923441 · C36Plumber
License activechecked Oct 24, 2026
San Lorenzo, CA · (510) 481-1555
CA-CSLB 884481 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
San Lorenzo, CA · (510) 481-1555
CA-CSLB 845187 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
Hayward, CA · (510) 467-8836
CA-CSLB 1146504 · C36Plumber
License activechecked Oct 24, 2026