Licensed Plumbing (C-36) contractors in San Mateo, CA

The California Contractors State License Board (CSLB) lists 33 Plumbing (C-36) contractors in San Mateo, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

33 contractors

1. Acme Mechanical

   San Mateo, CA · CSLB #764477 · as of June 27, 2026
   Active · clear
2. A G R Plumbing

   San Mateo, CA · CSLB #1072671 · as of June 27, 2026
   Active · clear
3. American Plumbing & Drain

   San Mateo, CA · CSLB #851101 · as of June 27, 2026
   Active · clear
4. The Backflow Pro INC

   San Mateo, CA · CSLB #933568 · as of June 27, 2026
   Active · clear
5. Bel Carlos Plumbing

   San Mateo, CA · CSLB #632903 · as of June 27, 2026
   Active · clear
6. S A Brandt INC DBA Brandt Plumbing

   San Mateo, CA · CSLB #860519 · as of June 27, 2026
   Active · clear
7. Bullseye Plumbing

   San Mateo, CA · CSLB #961960 · as of June 27, 2026
   Active · clear
8. Covey Plumbing

   San Mateo, CA · CSLB #965817 · as of June 27, 2026
   Active · clear
9. Dittmann Plumbing INC

   San Mateo, CA · CSLB #311169 · as of June 27, 2026
   Active · clear
10. D Z Plumbing

    San Mateo, CA · CSLB #1114194 · as of June 27, 2026
    Active · clear
11. FCC Plumbing INC

    San Mateo, CA · CSLB #1077108 · as of June 27, 2026
    Active · clear
12. Flat Rate Plumbing And Drain

    San Mateo, CA · CSLB #964565 · as of June 27, 2026
    Active · clear
13. G P S Plumbing

    San Mateo, CA · CSLB #672474 · as of June 27, 2026
    Active · clear
14. Grant Plumbing

    San Mateo, CA · CSLB #890480 · as of June 27, 2026
    Active · clear
15. GWS Plumbing & Sewer

    San Mateo, CA · CSLB #1131694 · as of June 27, 2026
    Active · clear
16. Hamzeh Plumbing

    San Mateo, CA · CSLB #945729 · as of June 27, 2026
    Active · clear
17. Harrius

    San Mateo, CA · CSLB #1145225 · as of June 27, 2026
    Active · clear
18. Hemi's Plumbing Service LLC

    San Mateo, CA · CSLB #1099842 · as of June 27, 2026
    Active · clear
19. Hillside Plumbing Company INC

    San Mateo, CA · CSLB #860119 · as of June 27, 2026
    Active · clear
20. J H K Plumbing Services

    San Mateo, CA · CSLB #883271 · as of June 27, 2026
    Active · clear
21. Jimenez Hydronics

    San Mateo, CA · CSLB #1016094 · as of June 27, 2026
    Active · clear
22. Lemus Plumbing

    San Mateo, CA · CSLB #1123543 · as of June 27, 2026
    Active · clear
23. J Massoudi Plumbing

    San Mateo, CA · CSLB #533540 · as of June 27, 2026
    Active · clear
24. Maz Plumbing Under Ground And Sewer Services LLC

    San Mateo, CA · CSLB #1111601 · as of June 27, 2026
    Active · clear
25. Navarro's Plumbing

    San Mateo, CA · CSLB #1050481 · as of June 27, 2026
    Active · clear
26. Promo Plumbing INC

    San Mateo, CA · CSLB #1085836 · as of June 27, 2026
    Active · clear
27. Sazo Plumbing

    San Mateo, CA · CSLB #1156175 · as of June 27, 2026
    Active · clear
28. The Plumbers Brothers And Rooter INC

    San Mateo, CA · CSLB #1142928 · as of June 27, 2026
    Active · clear
29. Tremors Plumbing And Sewer

    San Mateo, CA · CSLB #1023331 · as of June 27, 2026
    Active · clear
30. Tremors Plumbing And Sewer INC

    San Mateo, CA · CSLB #1095390 · as of June 27, 2026
    Active · clear
31. Water Heater Boys LLC

    San Mateo, CA · CSLB #1134458 · as of June 27, 2026
    Active · clear
32. Wizard Plumbing And Drain LLC

    San Mateo, CA · CSLB #974521 · as of June 27, 2026
    Active · clear
33. O'reilly Plumbing

    San Mateo, CA · CSLB #853402 · as of June 27, 2026
    Suspended · workers' comp

See all Plumbing (C-36) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.