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 4,981–5,040 of 8,936 contractors

1. Kvach Heating And Cooling INC

   Sacramento, CA · CSLB #1019093 · as of October 8, 2026
   Active · clear
2. Kwan Air INC

   Cerritos, CA · CSLB #1114131 · as of October 8, 2026
   Active · clear
3. Penergy Engineering

   Millbrae, CA · CSLB #866729 · as of October 8, 2026
   Active · clear
4. Kylan Mechanical INC

   Downey, CA · CSLB #864978 · as of October 8, 2026
   Active · clear
5. Kyle Carr Heating & Air

   La Verne, CA · CSLB #1121775 · as of October 8, 2026
   Active · clear
6. KZ Heating And Air Conditioning

   Antioch, CA · CSLB #1125064 · as of October 8, 2026
   Active · clear
7. La Ac Services INC

   Chatsworth, CA · CSLB #1048650 · as of October 8, 2026
   Active · clear
8. L A Air

   Van Nuys, CA · CSLB #733534 · as of October 8, 2026
   Active · clear
9. La Air Care INC

   Panorama City, CA · CSLB #1134635 · as of October 8, 2026
   Active · clear
10. L A Air & Heating

    Van Nuys, CA · CSLB #987874 · as of October 8, 2026
    Active · clear
11. La Blue Plumbing Heating & A/c

    Inglewood, CA · CSLB #828956 · as of October 8, 2026
    Active · clear
12. Labs Heating And Air Conditioning

    Anaheim, CA · CSLB #922887 · as of October 8, 2026
    Active · clear
13. Lacayo Colt Plumbing & Heating INC

    San Leandro, CA · CSLB #745082 · as of October 8, 2026
    Active · clear
14. Lac Heating & Air LLC

    Montebello, CA · CSLB #1067086 · as of October 8, 2026
    Active · clear
15. La Climate INC

    West Hills, CA · CSLB #1094988 · as of October 8, 2026
    Active · clear
16. La Climate King

    Norwalk, CA · CSLB #1131525 · as of October 8, 2026
    Active · clear
17. La Comfort Heating & Ac

    Burbank, CA · CSLB #1072249 · as of October 8, 2026
    Active · clear
18. La Crescenta HVAC

    La Crescenta, CA · CSLB #1120137 · as of October 8, 2026
    Active · clear
19. Ladislav Niedziolka

    Sonora, CA · CSLB #1160258 · as of October 8, 2026
    Active · clear
20. Lafferty Heating

    Cambria, CA · CSLB #906387 · as of October 8, 2026
    Active · clear
21. Jose Luis Lagunas

    Bakersfield, CA · CSLB #1067096 · as of October 8, 2026
    Active · clear
22. L A Heating & A/c

    Winnetka, CA · CSLB #1026357 · as of October 8, 2026
    Active · clear
23. La HVAC Expert

    Laguna Niguel, CA · CSLB #1119479 · as of October 8, 2026
    Active · clear
24. La HVAC Service Pro

    Inglewood, CA · CSLB #1084619 · as of October 8, 2026
    Active · clear
25. La Jolla Heating & Air Conditioning

    La Jolla, CA · CSLB #790982 · as of October 8, 2026
    Active · clear
26. La Jolla HVAC

    La Jolla, CA · CSLB #1073890 · as of October 8, 2026
    Active · clear
27. Lake Air INC

    Palm Springs, CA · CSLB #467000 · as of October 8, 2026
    Active · clear
28. Christopher Lake Air Conditioning

    Valley Center, CA · CSLB #885096 · as of October 8, 2026
    Active · clear
29. Gary Lake Heat & Air INC

    Escondido, CA · CSLB #1028365 · as of October 8, 2026
    Active · clear
30. Lakehills Mechanical LLC

    El Dorado Hills, CA · CSLB #1040762 · as of October 8, 2026
    Active · clear
31. Ken Lake Air Conditioning

    Escondido, CA · CSLB #514680 · as of October 8, 2026
    Active · clear
32. Lakeside Heating And Ac

    Hesperia, CA · CSLB #1077443 · as of October 8, 2026
    Active · clear
33. Lakeside Mechanical LLC

    Loomis, CA · CSLB #1112923 · as of October 8, 2026
    Active · clear
34. Lakeview Mechanical Services

    Oroville, CA · CSLB #847047 · as of October 8, 2026
    Active · clear
35. Lakewood Heating & Air Conditioning INC

    Lakewood, CA · CSLB #597968 · as of October 8, 2026
    Active · clear
36. Lambert Heating And Air Conditioning

    Downey, CA · CSLB #540369 · as of October 8, 2026
    Active · clear
37. Lamb Heating & Air Conditioning

    Lockeford, CA · CSLB #922157 · as of October 8, 2026
    Active · clear
38. Lampo Ac

    San Francisco, CA · CSLB #1156999 · as of October 8, 2026
    Active · clear
39. Landa's Air

    Moreno Valley, CA · CSLB #1129506 · as of October 8, 2026
    Active · clear
40. Landeen Heating And Air Conditioning

    Simi Valley, CA · CSLB #759980 · as of October 8, 2026
    Active · clear
41. 5 S Contracting INC DBA Landmark Mechanical

    San Diego, CA · CSLB #1085295 · as of October 8, 2026
    Active · clear
42. Lanyi USA INC

    Diamond Bar, CA · CSLB #1121762 · as of October 8, 2026
    Active · clear
43. Laprohvac INC

    Santa Clarita, CA · CSLB #1129514 · as of October 8, 2026
    Active · clear
44. La Pro Mechanical INC

    Sunland, CA · CSLB #1052038 · as of October 8, 2026
    Active · clear
45. La Quinta Air Conditioning & Heating INC

    La Quinta, CA · CSLB #902029 · as of October 8, 2026
    Active · clear
46. Lara Air Conditioning

    West Covina, CA · CSLB #892691 · as of October 8, 2026
    Active · clear
47. Roberto Lara

    Simi Valley, CA · CSLB #1086502 · as of October 8, 2026
    Active · clear
48. Kermit Larby Air Conditioning & Sheet Metal INC DBA Kermit Larby

    Palm Desert, CA · CSLB #909011 · as of October 8, 2026
    Active · clear
49. Laris Heating & Air INC

    Sacramento, CA · CSLB #1082506 · as of October 8, 2026
    Active · clear
50. Larry's Maytag Home Appliance DBA Larry's Heating & Cool

    Norwalk, CA · CSLB #1056396 · as of October 8, 2026
    Active · clear
51. Larsen Energy Systems INC

    Santa Rosa, CA · CSLB #621440 · as of October 8, 2026
    Active · clear
52. Larson Air Solutions LLC

    Folsom, CA · CSLB #1065657 · as of October 8, 2026
    Active · clear
53. La Salle Plumbing Heating & Air Conditioning INC

    Lomita, CA · CSLB #679381 · as of October 8, 2026
    Active · clear
54. La's Best Heating & Air Conditioning

    Los Angeles, CA · CSLB #1028821 · as of October 8, 2026
    Active · clear
55. Lasley Mechanical LLC

    Penngrove, CA · CSLB #739019 · as of October 8, 2026
    Active · clear
56. La Solution Heating And Cooling

    Lancaster, CA · CSLB #1119651 · as of October 8, 2026
    Active · clear
57. Lassen Air And Refrigeration Services

    Shingletown, CA · CSLB #971411 · as of October 8, 2026
    Active · clear
58. Joshua Lassley

    Fresno, CA · CSLB #967003 · as of October 8, 2026
    Active · clear
59. La Standard HVAC INC

    Sunland, CA · CSLB #1072675 · as of October 8, 2026
    Active · clear
60. Last Call HVAC INC

    Whittier, CA · CSLB #1150562 · 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.