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 2,761–2,820 of 8,936 contractors

1. Custom Airworks

   La Puente, CA · CSLB #1073523 · as of October 8, 2026
   Active · clear
2. Custom Climate Control

   Saugus, CA · CSLB #709328 · as of October 8, 2026
   Active · clear
3. Custom Comfort Heating And Cooling INC

   Geyserville, CA · CSLB #931823 · as of October 8, 2026
   Active · clear
4. Custom Heating And Air

   Huntington Beach, CA · CSLB #649444 · as of October 8, 2026
   Active · clear
5. Custom Heating And Air Conditioning

   Napa, CA · CSLB #825646 · as of October 8, 2026
   Active · clear
6. Custom Heating And Cooling

   Redwood Valley, CA · CSLB #769254 · as of October 8, 2026
   Active · clear
7. Custom Mechanical Design

   Centerville, CA · CSLB #835867 · as of October 8, 2026
   Active · clear
8. Custom Mechanical INC

   Escondido, CA · CSLB #798499 · as of October 8, 2026
   Active · clear
9. Cutting Edge Services INC

   Orange, CA · CSLB #1010182 · as of October 8, 2026
   Active · clear
10. Cutwater Heating & Air

    Laguna Niguel, CA · CSLB #1153995 · as of October 8, 2026
    Active · clear
11. C W Heating And Air Conditioning

    Anaheim, CA · CSLB #820838 · as of October 8, 2026
    Active · clear
12. C W'S Air Conditioning & Heating

    Lancaster, CA · CSLB #854131 · as of October 8, 2026
    Active · clear
13. Cycle Heating And Air LLC

    Laguna Hills, CA · CSLB #1116187 · as of October 8, 2026
    Active · clear
14. Cypress Heating & Air Conditioning

    Glendora, CA · CSLB #302865 · as of October 8, 2026
    Active · clear
15. Cypress Heating & Air Conditioning INC

    Glendora, CA · CSLB #593268 · as of October 8, 2026
    Active · clear
16. Daas Heating & Cooling INC

    San Jose, CA · CSLB #1060720 · as of October 8, 2026
    Active · clear
17. Daboub Air Conditioning & Heating

    Sun Valley, CA · CSLB #1012334 · as of October 8, 2026
    Active · clear
18. Dac Heating And Air

    Palmdale, CA · CSLB #1030236 · as of October 8, 2026
    Active · clear
19. Dac Mechanical

    Palmdale, CA · CSLB #1114390 · as of October 8, 2026
    Active · clear
20. Dae Sup Han

    La Habra, CA · CSLB #1158358 · as of October 8, 2026
    Active · clear
21. D A Heating & Air Conditioning

    Hollister, CA · CSLB #1148076 · as of October 8, 2026
    Active · clear
22. Dahme Heating And Air Conditioning INC

    Simi Valley, CA · CSLB #590084 · as of October 8, 2026
    Active · clear
23. Daikin Applied Americas INC

    Minneapolis, CA · CSLB #699581 · as of October 8, 2026
    Active · clear
24. Daimler Air Conditioning INC

    Granada Hills, CA · CSLB #1136654 · as of October 8, 2026
    Active · clear
25. D Air Balance INC

    Santa Ana, CA · CSLB #1130082 · as of October 8, 2026
    Active · clear
26. Dake Bros Heating & Air LLC

    Gridley, CA · CSLB #991714 · as of October 8, 2026
    Active · clear
27. Dakine HVAC

    Bonita, CA · CSLB #1141336 · as of October 8, 2026
    Active · clear
28. Dalani Heating And Air Conditioning

    Escondido, CA · CSLB #1153526 · as of October 8, 2026
    Active · clear
29. Dale-air INC

    La Mesa, CA · CSLB #1096291 · as of October 8, 2026
    Active · clear
30. Dale Heating Cooling & Sheetmetal INC

    Santa Rosa, CA · CSLB #952649 · as of October 8, 2026
    Active · clear
31. Kenneth Daley Heating & Air Services

    Diamond Bar, CA · CSLB #798187 · as of October 8, 2026
    Active · clear
32. D C Danco Air Conditioning CO INC

    Carson, CA · CSLB #698149 · as of October 8, 2026
    Active · clear
33. Sea-inland LLC DBA Dandy Heating And Air

    Orange, CA · CSLB #717839 · as of October 8, 2026
    Active · clear
34. D'angelo Heating And Air Conditioning

    Tracy, CA · CSLB #1111406 · as of October 8, 2026
    Active · clear
35. Daniel Billetts

    Hacienda Heights, CA · CSLB #1054372 · as of October 8, 2026
    Active · clear
36. Daniel Heating & Air Conditioning

    Riverside, CA · CSLB #921089 · as of October 8, 2026
    Active · clear
37. Daniel Huan Su

    Garden Grove, CA · CSLB #1008188 · as of October 8, 2026
    Active · clear
38. Daniel Mechanical Service CO

    Upland, CA · CSLB #832178 · as of October 8, 2026
    Active · clear
39. Daniel Mechanical Services

    Livermore, CA · CSLB #984060 · as of October 8, 2026
    Active · clear
40. Daniel's Heating & A/c

    Oakland, CA · CSLB #1059101 · as of October 8, 2026
    Active · clear
41. Daniels Heating And Air Conditioning

    Crestline, CA · CSLB #1038558 · as of October 8, 2026
    Active · clear
42. Daniel T Windler Plumbing

    San Antonio, CA · CSLB #1060437 · as of October 8, 2026
    Active · clear
43. Dani's Heating And Air Conditioning INC

    Winton, CA · CSLB #1117030 · as of October 8, 2026
    Active · clear
44. Danny's Heat & Air

    Stockton, CA · CSLB #1144064 · as of October 8, 2026
    Active · clear
45. Dan Only HVAC INC

    Indian Wells, CA · CSLB #1073547 · as of October 8, 2026
    Active · clear
46. Dan Paredes INC

    Fullerton, CA · CSLB #1158996 · as of October 8, 2026
    Active · clear
47. Dan's Air Conditioning Service

    Cherry Valley, CA · CSLB #693744 · as of October 8, 2026
    Active · clear
48. Dan's Appliance Repair A/c & Heating INC

    Visalia, CA · CSLB #977644 · as of October 8, 2026
    Active · clear
49. Dan Seeley's Heating & Air Conditioning INC

    Lake Arrowhead, CA · CSLB #1161901 · as of October 8, 2026
    Active · clear
50. Dan Seeley's Heating And Air Conditioning

    Crestline, CA · CSLB #873603 · as of October 8, 2026
    Active · clear
51. Dan Son Air INC

    Sylmar, CA · CSLB #1013914 · as of October 8, 2026
    Active · clear
52. Dansson Mechanical INC

    Newhall, CA · CSLB #784711 · as of October 8, 2026
    Active · clear
53. Sergio Dantas

    Tustin, CA · CSLB #1083833 · as of October 8, 2026
    Active · clear
54. Danush Appliances

    Montebello, CA · CSLB #948378 · as of October 8, 2026
    Active · clear
55. Toan Dao

    Fountain Valley, CA · CSLB #1076523 · as of October 8, 2026
    Active · clear
56. Darryl's Heating And Air

    Sacramento, CA · CSLB #1126157 · as of October 8, 2026
    Active · clear
57. Darwen Paul Rankl JR

    Sherwood Forest, CA · CSLB #991615 · as of October 8, 2026
    Active · clear
58. Dasco Mechancial Services INC

    Santa Clarita, CA · CSLB #992175 · as of October 8, 2026
    Active · clear
59. Mark Dattilo's Heating And Air Conditioning INC

    San Bernardino, CA · CSLB #543701 · as of October 8, 2026
    Active · clear
60. Davco Air Conditioning INC

    Palmdale, CA · CSLB #1018835 · 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.