Licensed Plumbing (C-36) contractors in California

The California Contractors State License Board (CSLB) lists 12,023 California contractors classified C-36 (Plumbing (C-36)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of July 2, 2026.

Showing 6,481–6,540 of 12,023 contractors

1. Mario's Plumbing Services

   Los Angeles, CA · CSLB #1076881 · as of July 2, 2026
   Active · clear
2. Mark Anthony's Plumbing

   Culver City, CA · CSLB #682329 · as of July 2, 2026
   Active · clear
3. Mark Antognoli

   Mission Viejo, CA · CSLB #513002 · as of July 2, 2026
   Active · clear
4. Mark Harris Plumbing CO INC

   El Cajon, CA · CSLB #605808 · as of July 2, 2026
   Active · clear
5. Mark Hellam's Plumbing

   Marina, CA · CSLB #1143715 · as of July 2, 2026
   Active · clear
6. Marks Plumbing

   Boyes Hot Springs, CA · CSLB #976120 · as of July 2, 2026
   Active · clear
7. Mark's Plumbing And Rooter

   Whittier, CA · CSLB #1019672 · as of July 2, 2026
   Active · clear
8. Mark's Plumbing A Partnership

   Shaver Lake, CA · CSLB #1008492 · as of July 2, 2026
   Active · clear
9. Markus Plumbing

   Lake Hughes, CA · CSLB #937841 · as of July 2, 2026
   Active · clear
10. Marout Plumbing

    Glendale, CA · CSLB #1034211 · as of July 2, 2026
    Active · clear
11. Mar Plumbing

    Glendale, CA · CSLB #1146959 · as of July 2, 2026
    Active · clear
12. Mar Plumbing INC

    Escondido, CA · CSLB #955995 · as of July 2, 2026
    Active · clear
13. Alejandro Marquez

    Sun Valley, CA · CSLB #1053688 · as of July 2, 2026
    Active · clear
14. Marquez And Son Plumbing INC

    Lawndale, CA · CSLB #1029382 · as of July 2, 2026
    Active · clear
15. Jorge Marquez

    Fountain Valley, CA · CSLB #781201 · as of July 2, 2026
    Active · clear
16. Manuel Marquez

    Pico Rivera, CA · CSLB #921142 · as of July 2, 2026
    Active · clear
17. D & K Marquez Enterprises INC

    Hollister, CA · CSLB #835215 · as of July 2, 2026
    Active · clear
18. Marquis Plumbing

    Marina Del Rey, CA · CSLB #711970 · as of July 2, 2026
    Active · clear
19. Marriott And Daughters Plumbing Company

    Montrose, CA · CSLB #735510 · as of July 2, 2026
    Active · clear
20. Marseilles Plumbing LLC

    Atascadero, CA · CSLB #743569 · as of July 2, 2026
    Active · clear
21. Marshall Plumbing

    Ramona, CA · CSLB #398450 · as of July 2, 2026
    Active · clear
22. Marshall Plumbing

    Truckee, CA · CSLB #987953 · as of July 2, 2026
    Active · clear
23. Marshall's Plumbing

    Long Beach, CA · CSLB #1123339 · as of July 2, 2026
    Active · clear
24. Marshalls Plumbing

    Santa Rosa, CA · CSLB #541596 · as of July 2, 2026
    Active · clear
25. Martell Precision Plumbing

    Citrus Heights, CA · CSLB #1138776 · as of July 2, 2026
    Active · clear
26. Martik Plumbing INC

    Sun Valley, CA · CSLB #1040088 · as of July 2, 2026
    Active · clear
27. A Martin Plumbing CO

    San Jose, CA · CSLB #914133 · as of July 2, 2026
    Active · clear
28. Don Martin Plumbing INC

    Chula Vista, CA · CSLB #893961 · as of July 2, 2026
    Active · clear
29. Alfred S JR Martinez

    Bakersfield, CA · CSLB #1129017 · as of July 2, 2026
    Active · clear
30. Apolinario E Martinez

    Palmdale, CA · CSLB #1129799 · as of July 2, 2026
    Active · clear
31. Isidro Martinez

    Tollhouse, CA · CSLB #862091 · as of July 2, 2026
    Active · clear
32. JL Martinez Plumbing INC

    Spring Valley, CA · CSLB #963566 · as of July 2, 2026
    Active · clear
33. Manuel S Martinez

    Hesperia, CA · CSLB #1079718 · as of July 2, 2026
    Active · clear
34. Martinez Plumbing

    Clovis, CA · CSLB #1068354 · as of July 2, 2026
    Active · clear
35. Martinez Plumbing

    Anaheim, CA · CSLB #1104918 · as of July 2, 2026
    Active · clear
36. Martinez Plumbing CO

    Merced, CA · CSLB #1040552 · as of July 2, 2026
    Active · clear
37. Martinez Plumbing Service

    Whittier, CA · CSLB #736797 · as of July 2, 2026
    Active · clear
38. Tomas Martinez

    Palm Desert, CA · CSLB #1020592 · as of July 2, 2026
    Active · clear
39. Vic Martinez Plumbing

    Whittier, CA · CSLB #883741 · as of July 2, 2026
    Active · clear
40. Martin Plumbing

    Oakdale, CA · CSLB #930763 · as of July 2, 2026
    Active · clear
41. Martin Plumbing Company

    Orange, CA · CSLB #846113 · as of July 2, 2026
    Active · clear
42. Martin Plumbing Services

    Los Angeles, CA · CSLB #995346 · as of July 2, 2026
    Active · clear
43. Martin Plumbing & Services

    San Jose, CA · CSLB #974640 · as of July 2, 2026
    Active · clear
44. Martin's Plumbing And Rooter

    Oxnard, CA · CSLB #856005 · as of July 2, 2026
    Active · clear
45. Martin's Repipe & Plumbing Corp

    Whittier, CA · CSLB #1127933 · as of July 2, 2026
    Active · clear
46. Martin's Rooter & Plumbing

    Oxnard, CA · CSLB #943697 · as of July 2, 2026
    Active · clear
47. Mse Corporation DBA Martins Rooter & Plumbing

    Oxnard, CA · CSLB #1062415 · as of July 2, 2026
    Active · clear
48. Martir Valle Plumbing Corp

    Santa Cruz, CA · CSLB #1127616 · as of July 2, 2026
    Active · clear
49. Martis Valley Plumbing INC

    Truckee, CA · CSLB #852467 · as of July 2, 2026
    Active · clear
50. Rick Marty Plumbing

    Redding, CA · CSLB #371273 · as of July 2, 2026
    Active · clear
51. Marvel Llamas Plumbing INC

    Perris, CA · CSLB #1148933 · as of July 2, 2026
    Active · clear
52. Marvelous Plumbing

    Buena Park, CA · CSLB #1119968 · as of July 2, 2026
    Active · clear
53. Marvin Plumbing

    Oakland, CA · CSLB #1142973 · as of July 2, 2026
    Active · clear
54. Marvin R Plumbing

    Los Angeles, CA · CSLB #974614 · as of July 2, 2026
    Active · clear
55. James J Marx Plumbing CO

    Laguna Hills, CA · CSLB #732387 · as of July 2, 2026
    Active · clear
56. Mascorro Plumbing

    Porterville, CA · CSLB #841487 · as of July 2, 2026
    Active · clear
57. Mason Plumbing INC

    San Anselmo, CA · CSLB #817803 · as of July 2, 2026
    Active · clear
58. Tom Massaglia

    Pacific Grove, CA · CSLB #614312 · as of July 2, 2026
    Active · clear
59. Massetani Plumbing

    Truckee, CA · CSLB #1132093 · as of July 2, 2026
    Active · clear
60. J Massoudi Plumbing

    San Mateo, CA · CSLB #533540 · as of July 2, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 2, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.