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 6, 2026.

Showing 301–360 of 8,936 contractors

1. A / C Solutions INC

   Murrieta, CA · CSLB #937959 · as of October 6, 2026
   Active · clear
2. Mssd Mechanical INC DBA Ac Sure Plan

   San Diego, CA · CSLB #1093749 · as of October 6, 2026
   Active · clear
3. The A/c Team INC

   Northridge, CA · CSLB #1036130 · as of October 6, 2026
   Active · clear
4. Ac Tech INC

   Monrovia, CA · CSLB #1095928 · as of October 6, 2026
   Active · clear
5. Ac Technology Heating And Air LLC

   Oak View, CA · CSLB #1057778 · as of October 6, 2026
   Active · clear
6. Action Air Conditioning And Heating

   San Marcos, CA · CSLB #1083840 · as of October 6, 2026
   Active · clear
7. Action Air Conditioning Service

   Moreno Valley, CA · CSLB #794761 · as of October 6, 2026
   Active · clear
8. Action Heating & A / C

   Hemet, CA · CSLB #806009 · as of October 6, 2026
   Active · clear
9. Action Heating & Air Conditioning INC

   Sunland, CA · CSLB #985674 · as of October 6, 2026
   Active · clear
10. Action HVAC

    Sacramento, CA · CSLB #553081 · as of October 6, 2026
    Active · clear
11. Action Plumbing And Heating Maintenance

    Santa Rosa, CA · CSLB #325110 · as of October 6, 2026
    Active · clear
12. Active Air

    Chino Hills, CA · CSLB #943433 · as of October 6, 2026
    Active · clear
13. Active Air Control INC

    Corona, CA · CSLB #966739 · as of October 6, 2026
    Active · clear
14. Active Air INC

    Kerman, CA · CSLB #1094539 · as of October 6, 2026
    Active · clear
15. Active Air Specialists INC

    Littlerock, CA · CSLB #1059755 · as of October 6, 2026
    Active · clear
16. Active Air Systems INC

    Santa Clarita, CA · CSLB #1005954 · as of October 6, 2026
    Active · clear
17. Active Temp INC

    Fontana, CA · CSLB #1028474 · as of October 6, 2026
    Active · clear
18. Acts HVAC

    Sacramento, CA · CSLB #1134445 · as of October 6, 2026
    Active · clear
19. Acuna's Polar Aire

    San Marcos, CA · CSLB #352974 · as of October 6, 2026
    Active · clear
20. Acutech Appliance Heating & Air

    Sacramento, CA · CSLB #1002770 · as of October 6, 2026
    Active · clear
21. Ac Xperts INC

    Trabuco Canyon, CA · CSLB #915801 · as of October 6, 2026
    Active · clear
22. Acz Mechanical INC

    Forestville, CA · CSLB #1139244 · as of October 6, 2026
    Active · clear
23. A/d Air Conditioning & Heating INC

    Van Nuys, CA · CSLB #491840 · as of October 6, 2026
    Active · clear
24. Adamark Air

    Sherman Oaks, CA · CSLB #1151523 · as of October 6, 2026
    Active · clear
25. Ada Mechanical INC

    Porter Ranch, CA · CSLB #1148766 · as of October 6, 2026
    Active · clear
26. Adameck HVAC INC

    Napa, CA · CSLB #1035976 · as of October 6, 2026
    Active · clear
27. Adam Heating And Air Conditioning LLC

    Lancaster, CA · CSLB #1092017 · as of October 6, 2026
    Active · clear
28. Adams Engineering INC

    Rancho Santa Fe, CA · CSLB #396069 · as of October 6, 2026
    Active · clear
29. Adam's Heating & Cooling

    Grover Beach, CA · CSLB #839958 · as of October 6, 2026
    Active · clear
30. Adams Refrigeration Service INC A California Corporation

    Petaluma, CA · CSLB #279103 · as of October 6, 2026
    Active · clear
31. Adams & Robinson Enterprises

    Huntington Beach, CA · CSLB #697983 · as of October 6, 2026
    Active · clear
32. Wayne C Adams Ii

    Lancaster, CA · CSLB #1090269 · as of October 6, 2026
    Active · clear
33. Adapt Heating & Ac

    Fresno, CA · CSLB #1141436 · as of October 6, 2026
    Active · clear
34. Adaptive Controls Services

    Ontario, CA · CSLB #1116142 · as of October 6, 2026
    Active · clear
35. Addington Air INC

    Patterson, CA · CSLB #1120150 · as of October 6, 2026
    Active · clear
36. A Degree Above INC

    Verdi, CA · CSLB #947927 · as of October 6, 2026
    Active · clear
37. A D Heating & Air

    Orange, CA · CSLB #1042682 · as of October 6, 2026
    Active · clear
38. Adjust Comfort Heating / Air Conditioning

    San Bernardino, CA · CSLB #859302 · as of October 6, 2026
    Active · clear
39. Ad Mechanical INC

    Granada Hills, CA · CSLB #1081794 · as of October 6, 2026
    Active · clear
40. Ad Mechanical Services INC

    Burlingame, CA · CSLB #1155755 · as of October 6, 2026
    Active · clear
41. A D M Mechanical

    Sacramento, CA · CSLB #423644 · as of October 6, 2026
    Active · clear
42. Adonai Heating & Air Conditioning

    Stockton, CA · CSLB #1017151 · as of October 6, 2026
    Active · clear
43. Adr22 Heating And Cooling

    Lancaster, CA · CSLB #1115761 · as of October 6, 2026
    Active · clear
44. Adriels Heating & Air

    San Bernardino, CA · CSLB #1137552 · as of October 6, 2026
    Active · clear
45. Advance Air Conditioning Heating

    Torrance, CA · CSLB #1112637 · as of October 6, 2026
    Active · clear
46. Advance Air Solutions

    Winnetka, CA · CSLB #1118146 · as of October 6, 2026
    Active · clear
47. Advanced A / C & Heating INC

    Glendale, CA · CSLB #723468 · as of October 6, 2026
    Active · clear
48. Advanced Air

    Visalia, CA · CSLB #1069621 · as of October 6, 2026
    Active · clear
49. Advanced Aire Flow INC

    Fillmore, CA · CSLB #1005372 · as of October 6, 2026
    Active · clear
50. Advanced Aire Movement

    Hawaiian Gardens, CA · CSLB #621160 · as of October 6, 2026
    Active · clear
51. Advanced Air INC

    Marina, CA · CSLB #809302 · as of October 6, 2026
    Active · clear
52. Advanced Air & Mechanical HVAC

    North Hollywood, CA · CSLB #944184 · as of October 6, 2026
    Active · clear
53. Advanced Air Systems

    Reseda, CA · CSLB #1147428 · as of October 6, 2026
    Active · clear
54. Advanced Air Systems

    Simi Valley, CA · CSLB #1035852 · as of October 6, 2026
    Active · clear
55. Advanced Centrifugal Systems INC

    Pasadena, CA · CSLB #850654 · as of October 6, 2026
    Active · clear
56. Advanced Climate Control Heating & Air Conditioning

    Bakersfield, CA · CSLB #773083 · as of October 6, 2026
    Active · clear
57. Advanced Climate Technologies

    Fullerton, CA · CSLB #1039852 · as of October 6, 2026
    Active · clear
58. Advanced Comfort Air Solutions LLC

    Sacramento, CA · CSLB #1073389 · as of October 6, 2026
    Active · clear
59. Advanced Comfort Incorporated

    Monterey Park, CA · CSLB #775840 · as of October 6, 2026
    Active · clear
60. Advanced Comfort Mechanical

    Rancho Cucamonga, CA · CSLB #1105767 · as of October 6, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.