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 2,761–2,820 of 8,999 contractors

1. Curtis Nation Air Conditioning & Heating

   Stockton, CA · CSLB #943673 · as of June 29, 2026
   Active · clear
2. Curt Lanini Plumbing And Heating

   Santa Maria, CA · CSLB #1031581 · as of June 29, 2026
   Active · clear
3. Custom Air Conditioning INC

   Anaheim, CA · CSLB #919945 · as of June 29, 2026
   Active · clear
4. Custom Aire

   N Hollywood, CA · CSLB #489182 · as of June 29, 2026
   Active · clear
5. Custom Aire

   Bakersfield, CA · CSLB #378268 · as of June 29, 2026
   Active · clear
6. Custom Aire INC

   Sparks, CA · CSLB #1077282 · as of June 29, 2026
   Active · clear
7. Custom Air Solutions

   Oxnard, CA · CSLB #1027967 · as of June 29, 2026
   Active · clear
8. Custom Air Specialists INC

   Santa Clarita, CA · CSLB #994862 · as of June 29, 2026
   Active · clear
9. Custom Air Systems

   Simi Valley, CA · CSLB #709387 · as of June 29, 2026
   Active · clear
10. Custom Climate Control

    Saugus, CA · CSLB #709328 · as of June 29, 2026
    Active · clear
11. Custom Comfort Heating And Cooling INC

    Geyserville, CA · CSLB #931823 · as of June 29, 2026
    Active · clear
12. Custom Heating And Air

    Huntington Beach, CA · CSLB #649444 · as of June 29, 2026
    Active · clear
13. Custom Heating And Air Conditioning

    Napa, CA · CSLB #825646 · as of June 29, 2026
    Active · clear
14. Custom Heating And Cooling

    Redwood Valley, CA · CSLB #769254 · as of June 29, 2026
    Active · clear
15. Custom Mechanical Design

    Centerville, CA · CSLB #835867 · as of June 29, 2026
    Active · clear
16. Custom Mechanical INC

    Escondido, CA · CSLB #798499 · as of June 29, 2026
    Active · clear
17. Cutting Edge Services INC

    Orange, CA · CSLB #1010182 · as of June 29, 2026
    Active · clear
18. Cutwater Heating & Air

    Laguna Niguel, CA · CSLB #1153995 · as of June 29, 2026
    Active · clear
19. C W Heating And Air Conditioning

    Anaheim, CA · CSLB #820838 · as of June 29, 2026
    Active · clear
20. C W'S Air Conditioning & Heating

    Lancaster, CA · CSLB #854131 · as of June 29, 2026
    Active · clear
21. Cycle Heating And Air LLC

    Laguna Hills, CA · CSLB #1116187 · as of June 29, 2026
    Active · clear
22. Cypress Heating & Air Conditioning

    Glendora, CA · CSLB #302865 · as of June 29, 2026
    Active · clear
23. Cypress Heating & Air Conditioning INC

    Glendora, CA · CSLB #593268 · as of June 29, 2026
    Active · clear
24. Daas Heating & Cooling INC

    San Jose, CA · CSLB #1060720 · as of June 29, 2026
    Active · clear
25. Daboub Air Conditioning & Heating

    Sun Valley, CA · CSLB #1012334 · as of June 29, 2026
    Active · clear
26. Dac Heating And Air

    Palmdale, CA · CSLB #1030236 · as of June 29, 2026
    Active · clear
27. Dac Mechanical

    Palmdale, CA · CSLB #1114390 · as of June 29, 2026
    Active · clear
28. D A Heating & Air Conditioning

    Hollister, CA · CSLB #1148076 · as of June 29, 2026
    Active · clear
29. Dahme Heating And Air Conditioning INC

    Simi Valley, CA · CSLB #590084 · as of June 29, 2026
    Active · clear
30. Daikin Applied Americas INC

    Minneapolis, CA · CSLB #699581 · as of June 29, 2026
    Active · clear
31. Daimler Air Conditioning INC

    Granada Hills, CA · CSLB #1136654 · as of June 29, 2026
    Active · clear
32. Dake Bros Heating & Air LLC

    Gridley, CA · CSLB #991714 · as of June 29, 2026
    Active · clear
33. Dakine HVAC

    Bonita, CA · CSLB #1141336 · as of June 29, 2026
    Active · clear
34. Dalani Heating And Air Conditioning

    Escondido, CA · CSLB #1153526 · as of June 29, 2026
    Active · clear
35. Dale-air INC

    La Mesa, CA · CSLB #1096291 · as of June 29, 2026
    Active · clear
36. Dale Heating Cooling & Sheetmetal INC

    Santa Rosa, CA · CSLB #952649 · as of June 29, 2026
    Active · clear
37. Kenneth Daley Heating & Air Services

    Diamond Bar, CA · CSLB #798187 · as of June 29, 2026
    Active · clear
38. Damian W Ryan INC

    La Crescenta, CA · CSLB #581590 · as of June 29, 2026
    Active · clear
39. Sea-inland LLC DBA Dandy Heating And Air

    Orange, CA · CSLB #717839 · as of June 29, 2026
    Active · clear
40. D'angelo Heating And Air Conditioning

    Tracy, CA · CSLB #1111406 · as of June 29, 2026
    Active · clear
41. Daniel Billetts

    Hacienda Heights, CA · CSLB #1054372 · as of June 29, 2026
    Active · clear
42. Daniel Heating & Air Conditioning

    Riverside, CA · CSLB #921089 · as of June 29, 2026
    Active · clear
43. Daniel Heating And Air Conditioning

    Winchester, CA · CSLB #1098080 · as of June 29, 2026
    Active · clear
44. Daniel Huan Su

    Garden Grove, CA · CSLB #1008188 · as of June 29, 2026
    Active · clear
45. Daniel Mechanical Service CO

    Upland, CA · CSLB #832178 · as of June 29, 2026
    Active · clear
46. Daniel Mechanical Services

    Livermore, CA · CSLB #984060 · as of June 29, 2026
    Active · clear
47. Daniel's Heating & A/c

    Oakland, CA · CSLB #1059101 · as of June 29, 2026
    Active · clear
48. Daniels Heating And Air Conditioning

    Crestline, CA · CSLB #1038558 · as of June 29, 2026
    Active · clear
49. Daniel T Windler Plumbing

    San Antonio, CA · CSLB #1060437 · as of June 29, 2026
    Active · clear
50. Dani's Heating And Air Conditioning INC

    Winton, CA · CSLB #1117030 · as of June 29, 2026
    Active · clear
51. Danny's Heat & Air

    Stockton, CA · CSLB #1144064 · as of June 29, 2026
    Active · clear
52. Dan Only HVAC INC

    Indian Wells, CA · CSLB #1073547 · as of June 29, 2026
    Active · clear
53. Dan's Air Conditioning Service

    Cherry Valley, CA · CSLB #693744 · as of June 29, 2026
    Active · clear
54. Dan's Appliance Repair A/c & Heating INC

    Visalia, CA · CSLB #977644 · as of June 29, 2026
    Active · clear
55. Dan Seeley's Heating And Air Conditioning

    Crestline, CA · CSLB #873603 · as of June 29, 2026
    Active · clear
56. Alfred J Beam DBA Dan's Heating & Air Conditioning #2

    Mira Loma, CA · CSLB #255386 · as of June 29, 2026
    Active · clear
57. Dan's Heating And Air

    Carmichael, CA · CSLB #875458 · as of June 29, 2026
    Active · clear
58. Dan Son Air INC

    Sylmar, CA · CSLB #1013914 · as of June 29, 2026
    Active · clear
59. Dansson Mechanical INC

    Newhall, CA · CSLB #784711 · as of June 29, 2026
    Active · clear
60. Sergio Dantas

    Tustin, CA · CSLB #1083833 · 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.