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

The California Contractors State License Board (CSLB) lists 8,930 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 July 3, 2026.

Showing 7,381–7,440 of 8,930 contractors

1. Sonco

   Winters, CA · CSLB #1144800 · as of July 3, 2026
   Active · clear
2. Sonna INC

   Studio City, CA · CSLB #1048769 · as of July 3, 2026
   Active · clear
3. Sonny's Air Conditioning

   Fresno, CA · CSLB #1129931 · as of July 3, 2026
   Active · clear
4. Sonoma County Comfort Heating & Air INC

   Santa Rosa, CA · CSLB #949247 · as of July 3, 2026
   Active · clear
5. Sonoma County Heating And Air LLC

   Sonoma, CA · CSLB #1082557 · as of July 3, 2026
   Active · clear
6. Son Ray's HVAC LLC

   Pollock Pines, CA · CSLB #1103906 · as of July 3, 2026
   Active · clear
7. Son's HVAC

   Los Banos, CA · CSLB #1156616 · as of July 3, 2026
   Active · clear
8. Sonwest Air Conditioning INC

   Rancho Cucamonga, CA · CSLB #486917 · as of July 3, 2026
   Active · clear
9. Soon Hvac-r Service

   Temple City, CA · CSLB #912962 · as of July 3, 2026
   Active · clear
10. Sorensen Air INC

    Brea, CA · CSLB #585274 · as of July 3, 2026
    Active · clear
11. Sos Affordable Rooter Plumbing Service INC

    Chula Vista, CA · CSLB #1115102 · as of July 3, 2026
    Active · clear
12. Sos HVAC LLC

    Stockton, CA · CSLB #1150067 · as of July 3, 2026
    Active · clear
13. S O S Plumbing Heating & Air

    Benicia, CA · CSLB #959418 · as of July 3, 2026
    Active · clear
14. Soto H V A C

    Concord, CA · CSLB #888673 · as of July 3, 2026
    Active · clear
15. Sotos HVAC INC

    Escondido, CA · CSLB #1077235 · as of July 3, 2026
    Active · clear
16. National Energy Services INC DBA Sound HVAC Solutions

    Livermore, CA · CSLB #1092266 · as of July 3, 2026
    Active · clear
17. South Bay Air LLC

    San Jose, CA · CSLB #994080 · as of July 3, 2026
    Active · clear
18. South Bay Heating & Air Conditioning INC

    Long Beach, CA · CSLB #439779 · as of July 3, 2026
    Active · clear
19. South Bay Mechanical

    San Martin, CA · CSLB #970095 · as of July 3, 2026
    Active · clear
20. South Bay Mechanical

    Livermore, CA · CSLB #627316 · as of July 3, 2026
    Active · clear
21. Sloan Brothers INC DBA South Bay Mechanical Services

    National City, CA · CSLB #901161 · as of July 3, 2026
    Active · clear
22. South Cali Air Conditioning INC

    El Centro, CA · CSLB #1059232 · as of July 3, 2026
    Active · clear
23. South City Mechanical INC

    Spring Valley, CA · CSLB #852758 · as of July 3, 2026
    Active · clear
24. South Coast Air Conditioning

    Alta Loma, CA · CSLB #879675 · as of July 3, 2026
    Active · clear
25. Southcoast Heating & Air Conditioning LP

    Vista, CA · CSLB #1052849 · as of July 3, 2026
    Active · clear
26. South Coast Heating And Air Conditioning INC

    Irvine, CA · CSLB #1103738 · as of July 3, 2026
    Active · clear
27. South County Air

    Capistrano, CA · CSLB #1116405 · as of July 3, 2026
    Active · clear
28. South County Air Services ,INC

    Tustin, CA · CSLB #1062690 · as of July 3, 2026
    Active · clear
29. South County Plumbing & Heating

    Lockwood, CA · CSLB #612237 · as of July 3, 2026
    Active · clear
30. Southern Air Conditioning And Heating

    Moreno Valley, CA · CSLB #720815 · as of July 3, 2026
    Active · clear
31. Southern Air Conditioning / Heating

    Palm Springs, CA · CSLB #953452 · as of July 3, 2026
    Active · clear
32. Southern Cali Cooling

    Spring Valley, CA · CSLB #1091735 · as of July 3, 2026
    Active · clear
33. Southern California Air INC

    Lancaster, CA · CSLB #633098 · as of July 3, 2026
    Active · clear
34. Southern California HVAC INC

    Riverside, CA · CSLB #1121574 · as of July 3, 2026
    Active · clear
35. Southern California Mechanical Solutions INC

    Palmdale, CA · CSLB #981894 · as of July 3, 2026
    Active · clear
36. Southern California Pro Air Conditioning

    Moreno Valley, CA · CSLB #1104993 · as of July 3, 2026
    Active · clear
37. Southern Cal Mechanical

    Wildomar, CA · CSLB #922093 · as of July 3, 2026
    Active · clear
38. Southern Cal Plumbing

    Vista, CA · CSLB #911014 · as of July 3, 2026
    Active · clear
39. Southern Chill Heating And Air Conditioning

    Lake Elsinore, CA · CSLB #1086778 · as of July 3, 2026
    Active · clear
40. Southern Hospitality Cooling And Heating

    Carson, CA · CSLB #1107312 · as of July 3, 2026
    Active · clear
41. Southern Mechanical Services LLC

    La Quinta, CA · CSLB #1096182 · as of July 3, 2026
    Active · clear
42. Southland Heating & Air Conditioning

    Newbury Park, CA · CSLB #797064 · as of July 3, 2026
    Active · clear
43. Southland Mechanical INC

    Oak Hills, CA · CSLB #917453 · as of July 3, 2026
    Active · clear
44. Southland Refrigeration Systems INC

    San Bernardino, CA · CSLB #1050130 · as of July 3, 2026
    Active · clear
45. Southland Superior Air

    Santa Ana, CA · CSLB #1142790 · as of July 3, 2026
    Active · clear
46. South Pacific Heating And Air Conditioning

    West Hills, CA · CSLB #688569 · as of July 3, 2026
    Active · clear
47. South Placer Heating And Air INC

    Sacramento, CA · CSLB #940668 · as of July 3, 2026
    Active · clear
48. South Pole Heating & Cooling

    Anaheim, CA · CSLB #908418 · as of July 3, 2026
    Active · clear
49. Southport HVAC INC

    West Sacramento, CA · CSLB #1109638 · as of July 3, 2026
    Active · clear
50. South Shore Heating

    South Lake Tahoe, CA · CSLB #969469 · as of July 3, 2026
    Active · clear
51. South Valley Ac & Heating LLC

    Bakersfield, CA · CSLB #1122924 · as of July 3, 2026
    Active · clear
52. South Valley Mechanical

    Woodlake, CA · CSLB #904069 · as of July 3, 2026
    Active · clear
53. Southwest Climamaster HVAC

    El Cajon, CA · CSLB #1146087 · as of July 3, 2026
    Active · clear
54. Southwest Heating

    Truckee, CA · CSLB #734716 · as of July 3, 2026
    Active · clear
55. Southwest Heating & Air Conditioning

    Fillmore, CA · CSLB #1057580 · as of July 3, 2026
    Active · clear
56. Southwest Heating & Air Conditioning INC

    Los Angeles, CA · CSLB #1007813 · as of July 3, 2026
    Active · clear
57. Southwest HVAC INC

    Downey, CA · CSLB #932164 · as of July 3, 2026
    Active · clear
58. Southwest Mechanical Services INC

    El Cajon, CA · CSLB #1090100 · as of July 3, 2026
    Active · clear
59. Southwood Plumbing & Heating INC

    San Bruno, CA · CSLB #818070 · as of July 3, 2026
    Active · clear
60. Southwood Plumbing INC

    Torrance, CA · CSLB #770065 · as of July 3, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 3, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.