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

The California Contractors State License Board (CSLB) lists 8,995 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 1, 2026.

Showing 5,161–5,220 of 8,995 contractors

1. Lightning Air Conditioning And Heating LLC

   Indio, CA · CSLB #1121705 · as of July 1, 2026
   Active · clear
2. L & I Heating And Air Conditioning INC

   Compton, CA · CSLB #1013266 · as of July 1, 2026
   Active · clear
3. Likai Chen HVAC INC

   Diamond Bar, CA · CSLB #926434 · as of July 1, 2026
   Active · clear
4. Limbach Company LP

   Warrendale, CA · CSLB #962922 · as of July 1, 2026
   Active · clear
5. Limitless Appliance, Heating And Air

   Marysville, CA · CSLB #1012930 · as of July 1, 2026
   Active · clear
6. Lindsey's Heat & Air INC

   Arcadia, CA · CSLB #1041743 · as of July 1, 2026
   Active · clear
7. Linear Air Conditioning & Heating

   Tustin, CA · CSLB #932561 · as of July 1, 2026
   Active · clear
8. Lin's Air Condition INC

   San Gabriel, CA · CSLB #981177 · as of July 1, 2026
   Active · clear
9. Lionstone Construction INC DBA Lionstone Mechanical Company

   Morgan Hill, CA · CSLB #1106387 · as of July 1, 2026
   Active · clear
10. Lira's Mechanical INC

    San Bernardino, CA · CSLB #1048955 · as of July 1, 2026
    Active · clear
11. Lissick's Heating And Air Conditioning

    Fairfield, CA · CSLB #926689 · as of July 1, 2026
    Active · clear
12. The Little Guy's Heating And Air Conditioning INC

    Manteca, CA · CSLB #1126772 · as of July 1, 2026
    Active · clear
13. Yong Liu

    Placentia, CA · CSLB #1144911 · as of July 1, 2026
    Active · clear
14. Livegreen Mechanical And Energy Management Systems

    Long Beach, CA · CSLB #1129860 · as of July 1, 2026
    Active · clear
15. Lively's Heating & Air

    Yucaipa, CA · CSLB #1132040 · as of July 1, 2026
    Active · clear
16. Livermore Mechanical INC

    Livermore, CA · CSLB #986999 · as of July 1, 2026
    Active · clear
17. Liverpool Ac Incorporated

    Woodland Hills, CA · CSLB #1081633 · as of July 1, 2026
    Active · clear
18. Living Air Design LLC

    Brea, CA · CSLB #1091394 · as of July 1, 2026
    Active · clear
19. Yen Lin Li Company INC

    Oakland, CA · CSLB #530114 · as of July 1, 2026
    Active · clear
20. Yin Li

    Rowland Heights, CA · CSLB #1109093 · as of July 1, 2026
    Active · clear
21. Youping Li

    Rosemead, CA · CSLB #982739 · as of July 1, 2026
    Active · clear
22. Lizarraga & Barajas Heating & Air Conditioning

    Sylmar, CA · CSLB #1104545 · as of July 1, 2026
    Active · clear
23. L J Heating And Air Conditioning INC

    Marysville, CA · CSLB #1115117 · as of July 1, 2026
    Active · clear
24. L J Mechanical Heating & Cooling INC

    Gilroy, CA · CSLB #1048020 · as of July 1, 2026
    Active · clear
25. LK Air-cooling INC

    Los Angeles, CA · CSLB #1097129 · as of July 1, 2026
    Active · clear
26. L & L Heating And Air Conditioning

    Rossmoor, CA · CSLB #899491 · as of July 1, 2026
    Active · clear
27. LL Heating And Air Conditioning

    San Jose, CA · CSLB #1120831 · as of July 1, 2026
    Active · clear
28. Jean Marcel Llorens

    Whittier, CA · CSLB #1005216 · as of July 1, 2026
    Active · clear
29. L M C Air Conditioning & Heating

    Indio, CA · CSLB #1012807 · as of July 1, 2026
    Active · clear
30. LM Heating & Cooling INC

    Los Angeles, CA · CSLB #1145426 · as of July 1, 2026
    Active · clear
31. L & M HVAC

    Rancho Cucamonga, CA · CSLB #1095071 · as of July 1, 2026
    Active · clear
32. LMJ HVAC

    South San Francisco, CA · CSLB #1066509 · as of July 1, 2026
    Active · clear
33. L & M Mechanical INC

    Chatsworth, CA · CSLB #672198 · as of July 1, 2026
    Active · clear
34. LMP Heating & Air INC

    Long Beach, CA · CSLB #1038884 · as of July 1, 2026
    Active · clear
35. Lobo Mechanical

    Milpitas, CA · CSLB #1020987 · as of July 1, 2026
    Active · clear
36. Lobo Mechanical HVAC Solutions

    Dixon, CA · CSLB #1150729 · as of July 1, 2026
    Active · clear
37. Local Ac Guy

    Woodlake, CA · CSLB #1143029 · as of July 1, 2026
    Active · clear
38. Local Air Conditioning Company

    Anaheim, CA · CSLB #823545 · as of July 1, 2026
    Active · clear
39. Local Bay HVAC Service

    Hercules, CA · CSLB #1146161 · as of July 1, 2026
    Active · clear
40. Local Comfort

    Hemet, CA · CSLB #1156843 · as of July 1, 2026
    Active · clear
41. Local Heating And Air

    Citrus Heights, CA · CSLB #1058688 · as of July 1, 2026
    Active · clear
42. Local Heating And Cooling

    National City, CA · CSLB #1127481 · as of July 1, 2026
    Active · clear
43. Local HVAC Pro INC

    Victorville, CA · CSLB #1057907 · as of July 1, 2026
    Active · clear
44. Local Pros Heating And Air Conditioning

    Elk Grove, CA · CSLB #1136762 · as of July 1, 2026
    Active · clear
45. Loc Bao Nguyen

    San Gabriel, CA · CSLB #1146191 · as of July 1, 2026
    Active · clear
46. Locke Air Conditioning & Custom Sheet Metal INC

    El Centro, CA · CSLB #696216 · as of July 1, 2026
    Active · clear
47. Loeza Mechanical INC

    Yucaipa, CA · CSLB #1060486 · as of July 1, 2026
    Active · clear
48. Logan Heating & Air Conditioning INC

    Grand Terrace, CA · CSLB #1102044 · as of July 1, 2026
    Active · clear
49. Logan Mechanical INC

    Norco, CA · CSLB #803586 · as of July 1, 2026
    Active · clear
50. Logical H V A C Solutions INC

    Fresno, CA · CSLB #977819 · as of July 1, 2026
    Active · clear
51. Lo-grim Mechanical INC

    North Highlands, CA · CSLB #1096009 · as of July 1, 2026
    Active · clear
52. L&o Heating & Air Conditioning

    Simi Valley, CA · CSLB #1042630 · as of July 1, 2026
    Active · clear
53. Loma Linda Heat And Air Conditioning INC

    San Bernardino, CA · CSLB #825214 · as of July 1, 2026
    Active · clear
54. J A Lomeli Heating & Air

    Rialto, CA · CSLB #1057490 · as of July 1, 2026
    Active · clear
55. Longs Hvacr

    San Diego, CA · CSLB #591530 · as of July 1, 2026
    Active · clear
56. Long Term HVAC

    Tujunga, CA · CSLB #1110995 · as of July 1, 2026
    Active · clear
57. Loo Enterprises

    Corcoran, CA · CSLB #979529 · as of July 1, 2026
    Active · clear
58. Loomis Refrigeration INC

    Atascadero, CA · CSLB #329012 · as of July 1, 2026
    Active · clear
59. Lopez Air Conditioning INC

    El Centro, CA · CSLB #996751 · as of July 1, 2026
    Active · clear
60. Lopez Heating

    San Francisco, CA · CSLB #1025103 · as of July 1, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 1, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.