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 7, 2026.

Showing 1,681–1,740 of 8,936 contractors

1. Bighorn Mechanical

   Reno, CA · CSLB #1102954 · as of October 7, 2026
   Active · clear
2. Big J'S Air Conditioning And Heating

   Palm Springs, CA · CSLB #519494 · as of October 7, 2026
   Active · clear
3. Big ""o"" Mechanical LLC

   Sacramento, CA · CSLB #1141277 · as of October 7, 2026
   Active · clear
4. Big Pipe Mechanical

   Brentwood, CA · CSLB #1055935 · as of October 7, 2026
   Active · clear
5. Big Vali INC

   Simi Valley, CA · CSLB #739962 · as of October 7, 2026
   Active · clear
6. Big Wave Heating And Air Conditioning LLC

   Huntington Beach, CA · CSLB #1115698 · as of October 7, 2026
   Active · clear
7. Billion Air INC

   Murrieta, CA · CSLB #1065949 · as of October 7, 2026
   Active · clear
8. Billion Air Mechanical INC

   Canyon Country, CA · CSLB #1065563 · as of October 7, 2026
   Active · clear
9. Bill Kutz Heating & Air Conditioning INC

   Santa Rosa, CA · CSLB #942600 · as of October 7, 2026
   Active · clear
10. Bill's Heating & Air Conditioning

    Rancho Cucamonga, CA · CSLB #920036 · as of October 7, 2026
    Active · clear
11. Bill's Heating & Cooling

    Oakley, CA · CSLB #1147604 · as of October 7, 2026
    Active · clear
12. Billy's Air Conditioning

    El Monte, CA · CSLB #838886 · as of October 7, 2026
    Active · clear
13. Bilthub

    Baldwin Park, CA · CSLB #1122564 · as of October 7, 2026
    Active · clear
14. Bing's Heating & Cooling CO

    San Francisco, CA · CSLB #651731 · as of October 7, 2026
    Active · clear
15. Bio Mechanical INC

    Encino, CA · CSLB #1060291 · as of October 7, 2026
    Active · clear
16. Biosphere Air Conditioning And Heating INC

    Sunland, CA · CSLB #1035741 · as of October 7, 2026
    Active · clear
17. R Birch Plumbing Heating Air Conditioning

    Menifee, CA · CSLB #554963 · as of October 7, 2026
    Active · clear
18. Birdie A C And Heating

    La Quinta, CA · CSLB #923996 · as of October 7, 2026
    Active · clear
19. Birdi HVAC

    Roseville, CA · CSLB #1107568 · as of October 7, 2026
    Active · clear
20. Birks Airconditioning

    Bakersfield, CA · CSLB #913542 · as of October 7, 2026
    Active · clear
21. Bischoff Sheet Metal INC

    Long Beach, CA · CSLB #421354 · as of October 7, 2026
    Active · clear
22. Bishop's HVAC

    Elk Grove, CA · CSLB #1069131 · as of October 7, 2026
    Active · clear
23. Mike Bispo's Heating & Air Conditioning

    Fresno, CA · CSLB #771293 · as of October 7, 2026
    Active · clear
24. Bize Mechanical Solutions

    Chula Vista, CA · CSLB #1139094 · as of October 7, 2026
    Active · clear
25. B J'S Heating & Air Conditioning INC

    Woodland, CA · CSLB #280981 · as of October 7, 2026
    Active · clear
26. BKB Heating Air Conditioning & Sheet Metal

    Petaluma, CA · CSLB #610945 · as of October 7, 2026
    Active · clear
27. B Kool

    Lake Elsinore, CA · CSLB #1021596 · as of October 7, 2026
    Active · clear
28. Black Ice Heating Air Conditioning

    Corona, CA · CSLB #1037681 · as of October 7, 2026
    Active · clear
29. Eric Blackwell Heating & Air

    Lodi, CA · CSLB #1058018 · as of October 7, 2026
    Active · clear
30. Black Wing

    Rialto, CA · CSLB #1156308 · as of October 7, 2026
    Active · clear
31. Blaine Heating And Air Conditioning

    Merced, CA · CSLB #1110515 · as of October 7, 2026
    Active · clear
32. Blair Heating & Air

    Palm Springs, CA · CSLB #953427 · as of October 7, 2026
    Active · clear
33. Blake Air Conditioning & Service CO INC

    Anaheim, CA · CSLB #396109 · as of October 7, 2026
    Active · clear
34. Randall David Blake

    Anaheim, CA · CSLB #528083 · as of October 7, 2026
    Active · clear
35. Blake's Heating & Air Conditioning

    Davis, CA · CSLB #299969 · as of October 7, 2026
    Active · clear
36. Blanco Heating & Air INC

    Goleta, CA · CSLB #765736 · as of October 7, 2026
    Active · clear
37. Blankenship Hvacr INC

    Visalia, CA · CSLB #1071060 · as of October 7, 2026
    Active · clear
38. Blaze Air

    Auburn, CA · CSLB #1038717 · as of October 7, 2026
    Active · clear
39. Blaze Heating & Air Conditioning

    Santa Rosa, CA · CSLB #773479 · as of October 7, 2026
    Active · clear
40. Blessed Heating And Air Conditioning

    Santa Clarita, CA · CSLB #1128589 · as of October 7, 2026
    Active · clear
41. Blizzard Air Conditioning & Heating

    Los Angeles, CA · CSLB #1069997 · as of October 7, 2026
    Active · clear
42. Blown Away

    Hayward, CA · CSLB #1135076 · as of October 7, 2026
    Active · clear
43. Blue Air HVAC

    Lake Forest, CA · CSLB #933925 · as of October 7, 2026
    Active · clear
44. Blueair Services

    Elk Grove, CA · CSLB #1107839 · as of October 7, 2026
    Active · clear
45. Blue Angel Mechanical Heating And Air Conditioning

    Stockton, CA · CSLB #874618 · as of October 7, 2026
    Active · clear
46. Bluebay Mechanical

    San Diego, CA · CSLB #1148556 · as of October 7, 2026
    Active · clear
47. Blueberry Air

    North Hollywood, CA · CSLB #1110024 · as of October 7, 2026
    Active · clear
48. Blue Bird Climate Solutions INC

    Murrieta, CA · CSLB #1145985 · as of October 7, 2026
    Active · clear
49. Bluebird Plumbing And Hydronics INC

    South Lake Tahoe, CA · CSLB #872859 · as of October 7, 2026
    Active · clear
50. Blue Coast Heating And Air Conditioning

    Gilroy, CA · CSLB #1039824 · as of October 7, 2026
    Active · clear
51. Blue Collar Comfort INC

    Santa Rosa, CA · CSLB #1156259 · as of October 7, 2026
    Active · clear
52. Blue Collar HVAC Mechanical INC

    Imperial Beach, CA · CSLB #1085024 · as of October 7, 2026
    Active · clear
53. Blue Diamond Heating And Air

    El Cajon, CA · CSLB #1060725 · as of October 7, 2026
    Active · clear
54. Blue Flame Heating And Air-conditioning

    El Cajon, CA · CSLB #1073975 · as of October 7, 2026
    Active · clear
55. Blue Flame HVAC

    Costa Mesa, CA · CSLB #1096440 · as of October 7, 2026
    Active · clear
56. Blue Forge Climate Solutions INC

    Sacramento, CA · CSLB #1146138 · as of October 7, 2026
    Active · clear
57. Blue Grip Squad INC

    Pomona, CA · CSLB #978154 · as of October 7, 2026
    Active · clear
58. Blue Line Heating And Air

    Citrus Heights, CA · CSLB #1064564 · as of October 7, 2026
    Active · clear
59. Blue Line HVAC

    Thousand Palms, CA · CSLB #1083557 · as of October 7, 2026
    Active · clear
60. Blueman Air INC

    Sacramento, CA · CSLB #1151126 · as of October 7, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 7, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.