Licensed Heating & Air Conditioning (C-20) contractors in California

The California Contractors State License Board (CSLB) lists 8,936 California contractors classified C-20 (Heating & Air Conditioning (C-20)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of October 8, 2026.

Showing 5,701–5,760 of 8,936 contractors

1. MRV Service Air INC

   Delano, CA · CSLB #870278 · as of October 8, 2026
   Active · clear
2. Msbi Fire N Ice HVAC

   Graton, CA · CSLB #1136756 · as of October 8, 2026
   Active · clear
3. M & S Hvacr Contractors INC

   Concord, CA · CSLB #956647 · as of October 8, 2026
   Active · clear
4. M S I

   Carmichael, CA · CSLB #792414 · as of October 8, 2026
   Active · clear
5. MS Mechanical Service INC

   Montebello, CA · CSLB #899875 · as of October 8, 2026
   Active · clear
6. Msmm INC

   San Luis Obispo, CA · CSLB #999900 · as of October 8, 2026
   Active · clear
7. Mso Enterprises INC

   Granada Hills, CA · CSLB #977044 · as of October 8, 2026
   Active · clear
8. MSP Heating And Air LLC

   Riverside, CA · CSLB #1038253 · as of October 8, 2026
   Active · clear
9. M & S Plumbing

   San Diego, CA · CSLB #924845 · as of October 8, 2026
   Active · clear
10. M S Reliable Heating And Cooling INC

    Pomona, CA · CSLB #1050276 · as of October 8, 2026
    Active · clear
11. Mtac Heating & Air INC

    Anaheim, CA · CSLB #1135465 · as of October 8, 2026
    Active · clear
12. M T B

    Petaluma, CA · CSLB #762453 · as of October 8, 2026
    Active · clear
13. MTC Heating & Air Conditioning INC

    North Hills, CA · CSLB #1039699 · as of October 8, 2026
    Active · clear
14. MT Cooling & Heating INC

    Clovis, CA · CSLB #1096518 · as of October 8, 2026
    Active · clear
15. M - Tech Air Conditioning Services INC

    Indio, CA · CSLB #1019044 · as of October 8, 2026
    Active · clear
16. Mtek Air Conditioning & Heating Control

    Fontana, CA · CSLB #1149130 · as of October 8, 2026
    Active · clear
17. M T E Mechanical INC

    Van Nuys, CA · CSLB #707377 · as of October 8, 2026
    Active · clear
18. MT Heating And Cooling

    Paso Robles, CA · CSLB #1113673 · as of October 8, 2026
    Active · clear
19. MT Rose Heating & Air Conditioning INC

    Reno, CA · CSLB #770238 · as of October 8, 2026
    Active · clear
20. Robert B Muela

    Thermal, CA · CSLB #746007 · as of October 8, 2026
    Active · clear
21. Dan Muller Heating And Air Conditioning

    San Dimas, CA · CSLB #943592 · as of October 8, 2026
    Active · clear
22. Multi Air Service LLC

    Pasadena, CA · CSLB #1026812 · as of October 8, 2026
    Active · clear
23. Multi-air Services INC

    Castaic, CA · CSLB #1029529 · as of October 8, 2026
    Active · clear
24. Multi Mechanical

    Sylmar, CA · CSLB #1124036 · as of October 8, 2026
    Active · clear
25. Mumford Scott Heating And Air Conditioning

    Simi Valley, CA · CSLB #905826 · as of October 8, 2026
    Active · clear
26. Mundy's Refrigeration

    Lancaster, CA · CSLB #626868 · as of October 8, 2026
    Active · clear
27. Munguia Heating & Air Conditioning

    Mc Farland, CA · CSLB #931450 · as of October 8, 2026
    Active · clear
28. Oscar Munguia

    San Jose, CA · CSLB #1089838 · as of October 8, 2026
    Active · clear
29. Ken Irwin DBA Murdoch's Heating

    Santa Barbara, CA · CSLB #662222 · as of October 8, 2026
    Active · clear
30. Murphy Heating And Air Conditioning LLC

    Vista, CA · CSLB #1110511 · as of October 8, 2026
    Active · clear
31. Murphy Mechanical HVAC INC

    Escondido, CA · CSLB #1034996 · as of October 8, 2026
    Active · clear
32. Murphys Heating And Air Conditioning

    Murphys, CA · CSLB #1010686 · as of October 8, 2026
    Active · clear
33. Murray Mechanical Services

    Folsom, CA · CSLB #618050 · as of October 8, 2026
    Active · clear
34. Murray's HVAC Systems

    Vallejo, CA · CSLB #1107668 · as of October 8, 2026
    Active · clear
35. Norberto Murrieta

    Norwalk, CA · CSLB #996735 · as of October 8, 2026
    Active · clear
36. Mushrush Heating & Air

    Lincoln, CA · CSLB #971711 · as of October 8, 2026
    Active · clear
37. Musial Heating & Air INC

    Newark, CA · CSLB #844028 · as of October 8, 2026
    Active · clear
38. Muvon LLC

    Sacramento, CA · CSLB #1142955 · as of October 8, 2026
    Active · clear
39. MW Mechanical INC

    Escondido, CA · CSLB #1002804 · as of October 8, 2026
    Active · clear
40. MY Ac Guy

    Chino Hills, CA · CSLB #1038524 · as of October 8, 2026
    Active · clear
41. Myco Custom Metalworks

    Temecula, CA · CSLB #932005 · as of October 8, 2026
    Active · clear
42. MYD HVAC INC

    Los Angeles, CA · CSLB #1109659 · as of October 8, 2026
    Active · clear
43. Myers Heating & Air Conditioning

    Citrus Heights, CA · CSLB #730080 · as of October 8, 2026
    Active · clear
44. Kevin Myers Heating And Air Conditioning

    Escondido, CA · CSLB #947412 · as of October 8, 2026
    Active · clear
45. MY Heating & Air

    Hollister, CA · CSLB #1089012 · as of October 8, 2026
    Active · clear
46. MZ Cooling & Heating INC

    Sunland, CA · CSLB #1113163 · as of October 8, 2026
    Active · clear
47. M Z Mechanical

    Santee, CA · CSLB #714343 · as of October 8, 2026
    Active · clear
48. N2ec Aircon And Heating Corporation

    Corona, CA · CSLB #1003714 · as of October 8, 2026
    Active · clear
49. Nadine Refrigeration LLC

    Cerritos, CA · CSLB #1156252 · as of October 8, 2026
    Active · clear
50. N A G Air Conditioning & Heating Systems INC

    Winnetka, CA · CSLB #1025354 · as of October 8, 2026
    Active · open complaint
51. Nagare Quality Air Conditioning INC

    Fresno, CA · CSLB #735518 · as of October 8, 2026
    Active · clear
52. Nahvac INC

    Sunland, CA · CSLB #1153586 · as of October 8, 2026
    Active · clear
53. Hormoz Najarian

    Porter Ranch, CA · CSLB #1138154 · as of October 8, 2026
    Active · clear
54. Nalk Air Conditioning And Heating INC

    Fresno, CA · CSLB #497476 · as of October 8, 2026
    Active · clear
55. Nani Heating & Air Conditioning

    San Francisco, CA · CSLB #1063316 · as of October 8, 2026
    Active · clear
56. Napalm's Heating And Air Conditioning

    Merced, CA · CSLB #1143406 · as of October 8, 2026
    Active · clear
57. Napinder Singh Punia

    Etiwanda, CA · CSLB #1145508 · as of October 8, 2026
    Active · clear
58. Napoles Heating & Air Conditioning

    Bakersfield, CA · CSLB #1077347 · as of October 8, 2026
    Active · clear
59. Nash Heating & Air Conditioning

    El Cajon, CA · CSLB #1100901 · as of October 8, 2026
    Active · clear
60. Nassef Heating And Ac

    Elk Grove, CA · CSLB #1078336 · as of October 8, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 8, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.