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

The California Contractors State License Board (CSLB) lists 8,999 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 June 29, 2026.

Showing 3,001–3,060 of 8,999 contractors

1. Divinair Heating And Air Conditioning

   Riverside, CA · CSLB #964113 · as of June 29, 2026
   Active · clear
2. Carlos Chavarria JR DBA Divine Air Conditioning & Heating

   Coachella, CA · CSLB #1004681 · as of June 29, 2026
   Active · clear
3. DJK Mechanical INC

   Chula Vista, CA · CSLB #1043843 · as of June 29, 2026
   Active · clear
4. D J S Heating & Air Conditioning INC

   Covina, CA · CSLB #687667 · as of June 29, 2026
   Active · clear
5. Dj's LLC DBA Dj's Heating And Air Conditioning

   Fair Oaks, CA · CSLB #1148431 · as of June 29, 2026
   Active · clear
6. Dj's Mechanical Service CO

   Danville, CA · CSLB #1099118 · as of June 29, 2026
   Active · clear
7. D & K Heating & Air Conditioning

   Vacaville, CA · CSLB #1100384 · as of June 29, 2026
   Active · clear
8. D K Heating And Air Conditioning Services

   El Monte, CA · CSLB #1007557 · as of June 29, 2026
   Active · clear
9. D & K Mechanical INC

   Templeton, CA · CSLB #1144442 · as of June 29, 2026
   Active · clear
10. D L Fan Services And Balancing

    Burlingame, CA · CSLB #833771 · as of June 29, 2026
    Active · clear
11. DLG Heating & Air Conditioning Corp

    National City, CA · CSLB #1058447 · as of June 29, 2026
    Active · clear
12. D & L Heating And Air

    West Sacramento, CA · CSLB #878913 · as of June 29, 2026
    Active · clear
13. DL HVAC

    Walnut, CA · CSLB #1120809 · as of June 29, 2026
    Active · clear
14. Dlo Heating And Air Conditioning

    Lathrop, CA · CSLB #1105826 · as of June 29, 2026
    Active · clear
15. Dma Mechanical INC

    San Diego, CA · CSLB #1071053 · as of June 29, 2026
    Active · clear
16. D M D Mechanical INC

    Palm Desert, CA · CSLB #812757 · as of June 29, 2026
    Active · clear
17. D & M Heating & A / C

    Modesto, CA · CSLB #931862 · as of June 29, 2026
    Active · clear
18. D/M Heating & Air INC

    Delhi, CA · CSLB #722214 · as of June 29, 2026
    Active · clear
19. D & M Heating & Cooling INC

    Sanger, CA · CSLB #993176 · as of June 29, 2026
    Active · clear
20. DM Mechanical INC

    Alta Loma, CA · CSLB #1104592 · as of June 29, 2026
    Active · clear
21. DMS Air INC

    San Dimas, CA · CSLB #1086341 · as of June 29, 2026
    Active · clear
22. Dna Heating And Cooling INC

    Panorama City, CA · CSLB #1046362 · as of June 29, 2026
    Active · clear
23. Dna Mechanical

    Riverside, CA · CSLB #1018087 · as of June 29, 2026
    Active · clear
24. D N Heating & Air Conditioning

    Bay Point, CA · CSLB #944179 · as of June 29, 2026
    Active · clear
25. DNR A/c & Heating INC

    Burbank, CA · CSLB #945200 · as of June 29, 2026
    Active · clear
26. Doair INC

    Rancho Cucamonga, CA · CSLB #1104424 · as of June 29, 2026
    Active · clear
27. Doak Heating And Air Conditioning

    Paradise, CA · CSLB #1056626 · as of June 29, 2026
    Active · clear
28. Bang Do

    La Puente, CA · CSLB #881408 · as of June 29, 2026
    Active · clear
29. Doctor Air INC

    Canoga Park, CA · CSLB #1107872 · as of June 29, 2026
    Active · clear
30. Do HVAC INC

    Penn Valley, CA · CSLB #1067074 · as of June 29, 2026
    Active · clear
31. Charles F Doidge

    North Hills, CA · CSLB #446727 · as of June 29, 2026
    Active · clear
32. King Do

    Santa Ana, CA · CSLB #1102551 · as of June 29, 2026
    Active · clear
33. Domestic HVAC LLC

    Canyon Lake, CA · CSLB #1123297 · as of June 29, 2026
    Active · clear
34. Jorge Dominguez

    Los Angeles, CA · CSLB #1114929 · as of June 29, 2026
    Active · clear
35. Dominion Ac & Heating

    Twin Peaks, CA · CSLB #1089062 · as of June 29, 2026
    Active · clear
36. Don Davis Heating & Cooling INC

    Coarsegold, CA · CSLB #1144363 · as of June 29, 2026
    Active · clear
37. Done Right Heating And Air Conditioning

    Auburn, CA · CSLB #943874 · as of June 29, 2026
    Active · clear
38. Done Right HVAC Services LLC

    Santa Rosa, CA · CSLB #1122386 · as of June 29, 2026
    Active · clear
39. Done Rite Heating & Air INC

    Perris, CA · CSLB #1100840 · as of June 29, 2026
    Active · clear
40. Done Wright Heating And Air

    Atwater, CA · CSLB #1151038 · as of June 29, 2026
    Active · clear
41. Donner Heating And Air

    Truckee, CA · CSLB #1092256 · as of June 29, 2026
    Active · clear
42. Donner Mechanical Heating & Air

    Meadow Vista, CA · CSLB #1133101 · as of June 29, 2026
    Active · clear
43. Don's Heating & Air Conditioning INC

    Santa Barbara, CA · CSLB #483508 · as of June 29, 2026
    Active · clear
44. Don's Heating And Cooling

    Rancho Cordova, CA · CSLB #1038578 · as of June 29, 2026
    Active · clear
45. Don't Sweat It HVAC

    San Bernardino, CA · CSLB #1117957 · as of June 29, 2026
    Active · clear
46. Dooley's Heating & Air

    Suisun City, CA · CSLB #876936 · as of June 29, 2026
    Active · clear
47. Dori's Heating & Air Conditioning INC

    La Quinta, CA · CSLB #1064784 · as of June 29, 2026
    Active · clear
48. Dorr Mechanical

    Sacramento, CA · CSLB #1120083 · as of June 29, 2026
    Active · clear
49. Dorsett Mechanical

    Diamond Springs, CA · CSLB #1097899 · as of June 29, 2026
    Active · clear
50. Do's Air Conditioning And Refrigeration

    Garden Grove, CA · CSLB #964707 · as of June 29, 2026
    Active · clear
51. Dossie Heating And Air Conditioning

    Corning, CA · CSLB #1032964 · as of June 29, 2026
    Active · clear
52. Double R Heating & Air Conditioning INC

    Tracy, CA · CSLB #1057850 · as of June 29, 2026
    Active · clear
53. Douglas Mechanical Services

    Los Alamitos, CA · CSLB #1021651 · as of June 29, 2026
    Active · clear
54. Doug's Air H V A C

    Arleta, CA · CSLB #819808 · as of June 29, 2026
    Active · clear
55. Doug's Heating And Air Conditioning Services

    Sacramento, CA · CSLB #877799 · as of June 29, 2026
    Active · clear
56. Doval Air Conditioning & Heat

    Chula Vista, CA · CSLB #917068 · as of June 29, 2026
    Active · clear
57. Dove Air INC

    Cathedral City, CA · CSLB #794315 · as of June 29, 2026
    Active · clear
58. Downey Heating & Cooling INC

    Etna, CA · CSLB #855692 · as of June 29, 2026
    Active · clear
59. Downey Plumbing Heating & Air Conditioning CO INC

    Downey, CA · CSLB #731172 · as of June 29, 2026
    Active · clear
60. Downing Heating INC

    Novato, CA · CSLB #1080113 · as of June 29, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of June 29, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.