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 5,881–5,940 of 8,936 contractors

1. Northern-air HVAC INC

   Grass Valley, CA · CSLB #892307 · as of October 8, 2026
   Active · clear
2. Northern Nevada Mechanical INC

   Reno, CA · CSLB #1160868 · as of October 8, 2026
   Active · clear
3. Northern Wind HVAC

   Glendale, CA · CSLB #1149962 · as of October 8, 2026
   Active · clear
4. North HVAC Services INC

   Corte Madera, CA · CSLB #1054297 · as of October 8, 2026
   Active · clear
5. North Pole Air Conditioning

   Industry, CA · CSLB #771198 · as of October 8, 2026
   Active · clear
6. North Pole Air Conditioning INC

   City Of Industry, CA · CSLB #953081 · as of October 8, 2026
   Active · clear
7. North Star Heating & Cooling

   Walnut Creek, CA · CSLB #1142423 · as of October 8, 2026
   Active · clear
8. Northstar Phac INC

   Ontario, CA · CSLB #916254 · as of October 8, 2026
   Active · clear
9. North State Air Conditioning

   Willows, CA · CSLB #449275 · as of October 8, 2026
   Active · clear
10. North State Cool And Pool Service

    Red Bluff, CA · CSLB #1056833 · as of October 8, 2026
    Active · clear
11. North Valley Heating & Air

    Sacramento, CA · CSLB #968682 · as of October 8, 2026
    Active · clear
12. Northwind Heating And Air INC

    Tulare, CA · CSLB #1066747 · as of October 8, 2026
    Active · clear
13. North Wind Heating & Cooling INC

    San Diego, CA · CSLB #1147131 · as of October 8, 2026
    Active · clear
14. Northwind Refrigeration INC

    Avalon, CA · CSLB #824449 · as of October 8, 2026
    Active · clear
15. Northwinds Air LLC

    Riverside, CA · CSLB #1139565 · as of October 8, 2026
    Active · clear
16. Norton Air Heating & Ac

    San Bernardino, CA · CSLB #819746 · as of October 8, 2026
    Active · clear
17. Norwalk-la Mirada Plumbing & Heating CO INC

    Norwalk, CA · CSLB #271767 · as of October 8, 2026
    Active · clear
18. No Sweat Heating And Air Conditioning INC

    Torrance, CA · CSLB #851991 · as of October 8, 2026
    Active · clear
19. Nova Heating And Ac

    Sun Valley, CA · CSLB #1086670 · as of October 8, 2026
    Active · clear
20. Nova Heating And Air Conditioning

    Merced, CA · CSLB #1024961 · as of October 8, 2026
    Active · clear
21. Novell Custom Heating & Air Conditioning Company

    Upland, CA · CSLB #958830 · as of October 8, 2026
    Active · clear
22. Novix Mechanical INC

    San Diego, CA · CSLB #1019006 · as of October 8, 2026
    Active · clear
23. Nowakowski INC

    Oceanside, CA · CSLB #1118230 · as of October 8, 2026
    Active · clear
24. Noy's Air Conditioning And Heating

    Glendora, CA · CSLB #956675 · as of October 8, 2026
    Active · clear
25. N P R Heating And Air Conditioning Corporation

    Canyon Country, CA · CSLB #999320 · as of October 8, 2026
    Active · clear
26. NR HVAC

    San Diego, CA · CSLB #1130921 · as of October 8, 2026
    Active · clear
27. Nu Aire Heating & A/c

    Corona, CA · CSLB #797860 · as of October 8, 2026
    Active · clear
28. Nu-air Services INC

    Chatsworth, CA · CSLB #735718 · as of October 8, 2026
    Active · clear
29. Nuair Solutions LLC

    Los Angeles, CA · CSLB #1148849 · as of October 8, 2026
    Active · clear
30. Nunez Heating & Air Conditioning

    San Jose, CA · CSLB #756332 · as of October 8, 2026
    Active · clear
31. Nunez & Sons Heating & Air Conditioning INC

    Arvin, CA · CSLB #1152137 · as of October 8, 2026
    Active · clear
32. Nur HVAC INC

    Burlingame, CA · CSLB #1109103 · as of October 8, 2026
    Active · clear
33. NVC Chiller INC

    Valencia, CA · CSLB #1114924 · as of October 8, 2026
    Active · clear
34. NWP Heating And Air

    Concord, CA · CSLB #1133687 · as of October 8, 2026
    Active · clear
35. Oak HVAC Service

    Beaumont, CA · CSLB #1137189 · as of October 8, 2026
    Active · clear
36. Oakley Heating And Air LLC

    Oakley, CA · CSLB #1125470 · as of October 8, 2026
    Active · clear
37. The Oaks Heating & Cooling Solutions

    Bakersfield, CA · CSLB #1082249 · as of October 8, 2026
    Active · clear
38. Oak Valley Appliance

    Tehachapi, CA · CSLB #726919 · as of October 8, 2026
    Active · clear
39. O A R Heating & Air

    Stockton, CA · CSLB #977099 · as of October 8, 2026
    Active · clear
40. Oasis Air Conditioning & Heating

    San Juan Capistrano, CA · CSLB #767272 · as of October 8, 2026
    Active · clear
41. Oasis Comfort Cooling And Heating INC

    Sherman Oaks, CA · CSLB #1155616 · as of October 8, 2026
    Active · clear
42. Oasis Heating & Air Corp

    Redding, CA · CSLB #1107515 · as of October 8, 2026
    Active · clear
43. Oasis Heating And Cooling INC

    Kerman, CA · CSLB #1039348 · as of October 8, 2026
    Active · clear
44. Oasis Heating & Cooling

    Santa Rosa, CA · CSLB #1063408 · as of October 8, 2026
    Active · clear
45. Oasis HVAC

    Fallon, CA · CSLB #1068358 · as of October 8, 2026
    Active · clear
46. Oasis Plumbing Heating & Air Conditioning

    San Marcos, CA · CSLB #1093808 · as of October 8, 2026
    Active · clear
47. Oasis Refrigeration And Appliance

    Fresno, CA · CSLB #803080 · as of October 8, 2026
    Active · clear
48. Ob Air Conditioning And Heating

    Woodland Hills, CA · CSLB #1037555 · as of October 8, 2026
    Active · clear
49. Obe & Sons INC

    Running Springs, CA · CSLB #516351 · as of October 8, 2026
    Active · clear
50. Oc Air Conditioning & Heating

    Anaheim, CA · CSLB #1050353 · as of October 8, 2026
    Active · clear
51. Oc Airtech LLC

    Tustin, CA · CSLB #1096693 · as of October 8, 2026
    Active · clear
52. Oc Cool Pros INC

    Santa Ana, CA · CSLB #1134520 · as of October 8, 2026
    Active · clear
53. Ocean Air Flow INC

    Agoura Hills, CA · CSLB #1083053 · as of October 8, 2026
    Active · clear
54. Ocean Air Heating

    San Francisco, CA · CSLB #968927 · as of October 8, 2026
    Active · clear
55. Ocean Air & Heating

    Aromas, CA · CSLB #494856 · as of October 8, 2026
    Active · clear
56. Ocean Air Heating & Air Conditioning

    Chula Vista, CA · CSLB #795740 · as of October 8, 2026
    Active · clear
57. Ocean Air HVAC

    Woodland Hills, CA · CSLB #1138032 · as of October 8, 2026
    Active · clear
58. Ocean Air H V A C

    Ventura, CA · CSLB #891072 · as of October 8, 2026
    Active · open complaint
59. Ocean Air INC

    Grover Beach, CA · CSLB #872602 · as of October 8, 2026
    Active · clear
60. Ocean Breeze Air INC

    Surprise, CA · CSLB #1053741 · 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.