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 6,721–6,780 of 8,936 contractors

1. Reliable HVAC

   Menifee, CA · CSLB #1157265 · as of October 8, 2026
   Active · clear
2. Reliable H V A C INC

   Solvang, CA · CSLB #1043322 · as of October 8, 2026
   Active · clear
3. Reliable Plumbing & Heating Services

   Monterey, CA · CSLB #531809 · as of October 8, 2026
   Active · clear
4. Reliable Refrigeration

   Napa, CA · CSLB #467256 · as of October 8, 2026
   Active · clear
5. Gard INC DBA Reliable Sheet Metal Works

   Fullerton, CA · CSLB #272202 · as of October 8, 2026
   Active · clear
6. Reliable Standard Group LLC

   San Diego, CA · CSLB #1103370 · as of October 8, 2026
   Active · clear
7. Reliable Temperature Control

   Pomona, CA · CSLB #1089966 · as of October 8, 2026
   Active · clear
8. Reliable Temperature Control LLC

   San Diego, CA · CSLB #1161788 · as of October 8, 2026
   Active · clear
9. Reliance Heating & Air Corporation

   Sacramento, CA · CSLB #1046472 · as of October 8, 2026
   Active · clear
10. Reliance Mechanical

    South Gate, CA · CSLB #1059007 · as of October 8, 2026
    Active · clear
11. Reliant Cooling And Power LLC

    Ontario, CA · CSLB #1156506 · as of October 8, 2026
    Active · clear
12. Reliant HVAC Service LLC

    Rancho Cucamonga, CA · CSLB #1128801 · as of October 8, 2026
    Active · clear
13. Rely HVAC LLC

    Van Nuys, CA · CSLB #1145256 · as of October 8, 2026
    Active · clear
14. Rendon Heating & Air INC

    Vacaville, CA · CSLB #1047288 · as of October 8, 2026
    Active · clear
15. Rene's Plumbing Repair INC

    La Verne, CA · CSLB #454443 · as of October 8, 2026
    Active · clear
16. Renkow Mechanical INC

    Los Angeles, CA · CSLB #773622 · as of October 8, 2026
    Active · clear
17. Renkow Service CO

    Gardena, CA · CSLB #741409 · as of October 8, 2026
    Active · clear
18. Renner Heating & Air Conditioning INC

    Vacaville, CA · CSLB #1005466 · as of October 8, 2026
    Active · clear
19. Renstrom Plumbing & Heating INC

    San Francisco, CA · CSLB #556995 · as of October 8, 2026
    Active · clear
20. Repair First Air Conditioning

    Indio, CA · CSLB #1090204 · as of October 8, 2026
    Active · clear
21. Repair Network

    Sun City, CA · CSLB #1005801 · as of October 8, 2026
    Active · clear
22. Repair Specialty

    Anaheim, CA · CSLB #763547 · as of October 8, 2026
    Active · clear
23. R / E Plumbing And Heating INC

    Sylmar, CA · CSLB #607487 · as of October 8, 2026
    Active · clear
24. Republic Air Conditioning Company

    Newman, CA · CSLB #481432 · as of October 8, 2026
    Active · clear
25. Republic Heating & Air LLC

    North Highlands, CA · CSLB #1135507 · as of October 8, 2026
    Active · clear
26. Rescomm Heating & Ac INC

    Tracy, CA · CSLB #674796 · as of October 8, 2026
    Active · clear
27. Rescue Air Service INC

    San Jose, CA · CSLB #826201 · as of October 8, 2026
    Active · clear
28. Reset Control

    Moreno Valley, CA · CSLB #1067241 · as of October 8, 2026
    Active · clear
29. Resilience Air

    San Jose, CA · CSLB #1152287 · as of October 8, 2026
    Active · clear
30. Resilience Heating & Air

    Los Banos, CA · CSLB #1144572 · as of October 8, 2026
    Active · clear
31. Resilience Heating And Air

    Sunland, CA · CSLB #1074621 · as of October 8, 2026
    Active · clear
32. Resq HVAC Residential Quality HVAC

    Cypress, CA · CSLB #1123005 · as of October 8, 2026
    Active · clear
33. Restart HVAC

    Mountain View, CA · CSLB #1090166 · as of October 8, 2026
    Active · clear
34. Restaurant Technical Services

    Campbell, CA · CSLB #524949 · as of October 8, 2026
    Active · clear
35. Retes Mechanical

    Stockton, CA · CSLB #971593 · as of October 8, 2026
    Active · clear
36. Jim Retherford Mechanical INC

    Valley Center, CA · CSLB #1074058 · as of October 8, 2026
    Active · clear
37. Reverse Heating & Air Conditioning INC

    Corona, CA · CSLB #1152115 · as of October 8, 2026
    Active · clear
38. Revival Heating & Air LLC

    Gardena, CA · CSLB #1105578 · as of October 8, 2026
    Active · clear
39. Revive Air

    Brea, CA · CSLB #1144319 · as of October 8, 2026
    Active · clear
40. Revive Heating And Air Conditioning

    Menifee, CA · CSLB #1146947 · as of October 8, 2026
    Active · clear
41. Revive Mechanical INC

    Redding, CA · CSLB #1093739 · as of October 8, 2026
    Active · clear
42. Revolution Heating & Air INC

    Mission Hills, CA · CSLB #1110227 · as of October 8, 2026
    Active · clear
43. R E X Plumbing Heating & A/c

    San Pedro, CA · CSLB #909577 · as of October 8, 2026
    Active · clear
44. Reyes Ac Heating & Cooling

    Reseda, CA · CSLB #1160490 · as of October 8, 2026
    Active · clear
45. H Reyes CO

    San Gabriel, CA · CSLB #441663 · as of October 8, 2026
    Active · clear
46. Reyes Heating And Air

    Woodland, CA · CSLB #917041 · as of October 8, 2026
    Active · clear
47. Reyes Heating And Air Conditioning

    Los Angeles, CA · CSLB #934037 · as of October 8, 2026
    Active · clear
48. Reyes Heating And Air INC

    Novato, CA · CSLB #1057236 · as of October 8, 2026
    Active · clear
49. Reyes HVAC Systems

    Arleta, CA · CSLB #1142510 · as of October 8, 2026
    Active · clear
50. Reynolds Heating And A/c

    Oroville, CA · CSLB #1090939 · as of October 8, 2026
    Active · clear
51. Reynoso Mechanical LLC

    Elverta, CA · CSLB #1158546 · as of October 8, 2026
    Active · clear
52. Rey's Air Solution INC

    West Sacramento, CA · CSLB #1048722 · as of October 8, 2026
    Active · clear
53. R F Mechanical Services

    Moorpark, CA · CSLB #876249 · as of October 8, 2026
    Active · clear
54. R & F Refrigeration INC

    Murrieta, CA · CSLB #1079760 · as of October 8, 2026
    Active · clear
55. R G Air Solutions

    Moreno Valley, CA · CSLB #1145907 · as of October 8, 2026
    Active · clear
56. R G Heating & Air Conditioning CO

    Los Angeles, CA · CSLB #974858 · as of October 8, 2026
    Active · clear
57. RGN Heating & Cooling

    San Jose, CA · CSLB #1135243 · as of October 8, 2026
    Active · clear
58. Rhinehart Heating And Air LLC

    Placerville, CA · CSLB #1130398 · as of October 8, 2026
    Active · clear
59. Rhino Air

    Burbank, CA · CSLB #1142997 · as of October 8, 2026
    Active · clear
60. Rhino Heating & Air Conditioning INC

    Castroville, CA · CSLB #1134947 · 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.