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 4,861–4,920 of 8,936 contractors

1. KC Squared Mechanical

   San Diego, CA · CSLB #1104161 · as of October 8, 2026
   Active · clear
2. K & D Heating & Air Conditioning INC

   Reseda, CA · CSLB #951664 · as of October 8, 2026
   Active · clear
3. K D Mechanical

   Grass Valley, CA · CSLB #985571 · as of October 8, 2026
   Active · clear
4. Keelo Heating & Air Conditioning & Ventilating

   Torrance, CA · CSLB #854736 · as of October 8, 2026
   Active · clear
5. Keeney H V A C

   Antioch, CA · CSLB #1056961 · as of October 8, 2026
   Active · clear
6. Keen Tech Mechanical Heating Ventilation Air Conditioning

   Bellflower, CA · CSLB #1097649 · as of October 8, 2026
   Active · clear
7. Keep Your Kool Solutions LLC

   Sacramento, CA · CSLB #1157298 · as of October 8, 2026
   Active · clear
8. Keith Heating And Air Conditioning

   Simi Valley, CA · CSLB #702721 · as of October 8, 2026
   Active · clear
9. Keith's HVAC Services

   Willows, CA · CSLB #1120581 · as of October 8, 2026
   Active · clear
10. Keller Heating & Air Conditioning INC

    Gilroy, CA · CSLB #1030639 · as of October 8, 2026
    Active · clear
11. Kelley's Comfort Heating & Cooling INC

    Madera, CA · CSLB #1069865 · as of October 8, 2026
    Active · clear
12. Kell Mechanical Heating And Air Conditioning INC

    Livermore, CA · CSLB #993569 · as of October 8, 2026
    Active · clear
13. D & L Kelly Heating And Air Conditioning

    Santa Rosa, CA · CSLB #951499 · as of October 8, 2026
    Active · clear
14. Kelly Indoor Comfort Systems

    Martinez, CA · CSLB #824690 · as of October 8, 2026
    Active · clear
15. Kelly Kooling INC

    Woodland, CA · CSLB #1104625 · as of October 8, 2026
    Active · clear
16. Kelly Plumbing & Heating INC

    Novato, CA · CSLB #688049 · as of October 8, 2026
    Active · clear
17. Kels Heating And Cooling

    Millbrae, CA · CSLB #1095352 · as of October 8, 2026
    Active · clear
18. Kemnitz Air Conditioning And Heating INC

    Irvine, CA · CSLB #695874 · as of October 8, 2026
    Active · clear
19. Ken Cool Air INC

    Elk Grove, CA · CSLB #1142584 · as of October 8, 2026
    Active · clear
20. Kendrick Energy Efficient Heating & Air

    Rocklin, CA · CSLB #891246 · as of October 8, 2026
    Active · clear
21. Kendrick Mechanical LLC

    Applegate, CA · CSLB #1119824 · as of October 8, 2026
    Active · clear
22. Kendrick Mechanical Services INC

    Loomis, CA · CSLB #1119777 · as of October 8, 2026
    Active · clear
23. Kendrick's Heating & Air Conditioning INC

    Long Beach, CA · CSLB #978767 · as of October 8, 2026
    Active · clear
24. Kenneth's Heating & Air

    Atascadero, CA · CSLB #975995 · as of October 8, 2026
    Active · clear
25. Kennies Indoor Comfort Specialists INC

    Hanford, CA · CSLB #524878 · as of October 8, 2026
    Active · clear
26. Kenn's A/c

    West Covina, CA · CSLB #1064099 · as of October 8, 2026
    Active · clear
27. Ken's Air

    Acampo, CA · CSLB #961058 · as of October 8, 2026
    Active · clear
28. Sean L Kent

    Visalia, CA · CSLB #1014521 · as of October 8, 2026
    Active · clear
29. Kenyon & Sons INC

    Rancho Cordova, CA · CSLB #292946 · as of October 8, 2026
    Active · clear
30. Keoni Heating And Air Conditioning

    Roseville, CA · CSLB #768186 · as of October 8, 2026
    Active · clear
31. Kern County Elite Plumbing

    Bakersfield, CA · CSLB #1139139 · as of October 8, 2026
    Active · clear
32. Kevco Service Corp

    Sunland, CA · CSLB #939118 · as of October 8, 2026
    Active · clear
33. Kevin's Heating And Air

    Sutter, CA · CSLB #1035820 · as of October 8, 2026
    Active · clear
34. Key Heating And Air Conditioning

    West Hills, CA · CSLB #594949 · as of October 8, 2026
    Active · clear
35. Key Mechanical Company

    Livermore, CA · CSLB #813609 · as of October 8, 2026
    Active · clear
36. Keyson Mechanical LLC

    Whittier, CA · CSLB #1120637 · as of October 8, 2026
    Active · clear
37. Keystone Mechanical LLC

    Campbell, CA · CSLB #1028816 · as of October 8, 2026
    Active · clear
38. KFM 247 LLC

    Woodbine, CA · CSLB #1133459 · as of October 8, 2026
    Active · open complaint
39. KG Air INC

    Jurupa Valley, CA · CSLB #1087005 · as of October 8, 2026
    Active · clear
40. KG Heating And Air Conditioning INC

    Sylmar, CA · CSLB #1159969 · as of October 8, 2026
    Active · clear
41. Michael Kiefer

    Riverside, CA · CSLB #824601 · as of October 8, 2026
    Active · clear
42. Killen Mechanical INC

    Livermore, CA · CSLB #1034453 · as of October 8, 2026
    Active · clear
43. Kimber Heat And Air

    Cameron Park, CA · CSLB #1073065 · as of October 8, 2026
    Active · clear
44. Wayne M Kimbrough Electric Heating A /C & Ref

    Pomona, CA · CSLB #826517 · as of October 8, 2026
    Active · clear
45. Kinetic Air INC

    Murrieta, CA · CSLB #1034636 · as of October 8, 2026
    Active · clear
46. Kinetic Climate

    Gardena, CA · CSLB #1135115 · as of October 8, 2026
    Active · clear
47. Kingdom Cooling Heating And Air Conditioning Service Incorporated

    Visalia, CA · CSLB #1121143 · as of October 8, 2026
    Active · clear
48. King Heating & Air Conditioning

    Bakersfield, CA · CSLB #918222 · as of October 8, 2026
    Active · clear
49. Kingman Plumbing Heating & Air INC

    City Of Industry, CA · CSLB #781087 · as of October 8, 2026
    Active · clear
50. King Price Heating And Cooling

    East Palo Alto, CA · CSLB #1144816 · as of October 8, 2026
    Active · clear
51. Kingram Mechanical

    San Diego, CA · CSLB #1038073 · as of October 8, 2026
    Active · clear
52. King's Air

    Fullerton, CA · CSLB #1120216 · as of October 8, 2026
    Active · clear
53. Kings Heating And Air

    Sacramento, CA · CSLB #1126352 · as of October 8, 2026
    Active · clear
54. Steven King Plumbing Service

    Chula Vista, CA · CSLB #829491 · as of October 8, 2026
    Active · clear
55. King Unlimited

    Glendora, CA · CSLB #523208 · as of October 8, 2026
    Active · clear
56. Dave Kirk Heating & Air Conditioning INC

    Whittier, CA · CSLB #407287 · as of October 8, 2026
    Active · clear
57. Kirks A C & Heating

    Lakewood, CA · CSLB #553209 · as of October 8, 2026
    Active · clear
58. Kite's Quality Heating & Air Service

    Poway, CA · CSLB #715850 · as of October 8, 2026
    Active · clear
59. Kj's Heating And Air INC

    Wildomar, CA · CSLB #1012328 · as of October 8, 2026
    Active · clear
60. K&K HVAC Services INC

    Chino, CA · CSLB #1153735 · 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.