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 4,681–4,740 of 8,936 contractors

1. J L Air Services

   Rancho Palos Verdes, CA · CSLB #1040728 · as of October 8, 2026
   Active · clear
2. JLC Air

   Lancaster, CA · CSLB #963378 · as of October 8, 2026
   Active · clear
3. J L Cantrell

   Redlands, CA · CSLB #515625 · as of October 8, 2026
   Active · clear
4. JLF Heating And Air INC

   Glencoe, CA · CSLB #1119708 · as of October 8, 2026
   Active · clear
5. J L M Mechanical

   Cameron Park, CA · CSLB #993943 · as of October 8, 2026
   Active · clear
6. JL Perry HVAC

   El Cajon, CA · CSLB #887727 · as of October 8, 2026
   Active · clear
7. J.l. Quality Heating & Air

   Rancho Santa Margarita, CA · CSLB #1042371 · as of October 8, 2026
   Active · clear
8. J L Sheetmetal INC

   Los Angeles, CA · CSLB #923602 · as of October 8, 2026
   Active · clear
9. JM2 Hvacr INC

   Lancaster, CA · CSLB #1147009 · as of October 8, 2026
   Active · clear
10. J M Air Conditioning

    Fresno, CA · CSLB #1041741 · as of October 8, 2026
    Active · clear
11. J&M Air Conditioning And Heating

    San Jacinto, CA · CSLB #1105754 · as of October 8, 2026
    Active · clear
12. Jma Mechanical Corp

    Lompoc, CA · CSLB #1108160 · as of October 8, 2026
    Active · clear
13. JMC Mechanical INC

    Palmdale, CA · CSLB #1031992 · as of October 8, 2026
    Active · clear
14. J M Comfort

    North Highlands, CA · CSLB #1016274 · as of October 8, 2026
    Active · clear
15. J M Heating & Air

    Burbank, CA · CSLB #853840 · as of October 8, 2026
    Active · clear
16. J&M Heating & Cooling LLC

    Fremont, CA · CSLB #1127824 · as of October 8, 2026
    Active · clear
17. JM HVAC

    Gardena, CA · CSLB #1091383 · as of October 8, 2026
    Active · clear
18. JM HVAC

    Petaluma, CA · CSLB #1001595 · as of October 8, 2026
    Active · clear
19. J M L Heating-cooling

    Ojai, CA · CSLB #688311 · as of October 8, 2026
    Active · clear
20. J M Mechanical

    Big Bear City, CA · CSLB #853444 · as of October 8, 2026
    Active · clear
21. JM Mechanical Solutions Corp

    Pomona, CA · CSLB #1129328 · as of October 8, 2026
    Active · clear
22. JMM Heating And Air

    Manteca, CA · CSLB #1161309 · as of October 8, 2026
    Active · clear
23. JMM Restaurant Specialties INC

    South El Monte, CA · CSLB #1003706 · as of October 8, 2026
    Active · clear
24. JM Quality Air Conditioning And Heating

    Yucca Valley, CA · CSLB #1133343 · as of October 8, 2026
    Active · clear
25. J M R Heating & Air Conditioning

    Laguna Niguel, CA · CSLB #1055619 · as of October 8, 2026
    Active · clear
26. J M R Heating Corp

    Hollister, CA · CSLB #1107368 · as of October 8, 2026
    Active · clear
27. J M S A / C & Heating

    Van Nuys, CA · CSLB #673678 · as of October 8, 2026
    Active · clear
28. J M S Heating And Air

    Citrus Heights, CA · CSLB #1050415 · as of October 8, 2026
    Active · clear
29. J M S Heating Cooling

    Stockton, CA · CSLB #1101454 · as of October 8, 2026
    Active · clear
30. J M S Mechanical INC

    Rohnert Park, CA · CSLB #811562 · as of October 8, 2026
    Active · clear
31. Jm's Refrigeration

    Wasco, CA · CSLB #703235 · as of October 8, 2026
    Active · clear
32. Jims Mechanical Services INC DBA JMS West HVAC

    Escondido, CA · CSLB #1064692 · as of October 8, 2026
    Active · clear
33. Jna Heating & Cooling

    Los Angeles, CA · CSLB #1090606 · as of October 8, 2026
    Active · clear
34. J N Centrifugal Technology

    Chino Hills, CA · CSLB #1140447 · as of October 8, 2026
    Active · clear
35. JNL Air Conditioning

    Long Beach, CA · CSLB #639288 · as of October 8, 2026
    Active · clear
36. Jobon Heating And Air Conditioning

    Pleasant Hill, CA · CSLB #1120873 · as of October 8, 2026
    Active · clear
37. Joel's Air Conditioning

    Hemet, CA · CSLB #920888 · as of October 8, 2026
    Active · clear
38. Joe's Heating & Air

    Modesto, CA · CSLB #1122891 · as of October 8, 2026
    Active · clear
39. J&o Heating & Air LLC

    Watsonville, CA · CSLB #974127 · as of October 8, 2026
    Active · clear
40. John Burger Heating & Air Conditioning INC

    Yuba City, CA · CSLB #876533 · as of October 8, 2026
    Active · clear
41. Johndow Air

    San Diego, CA · CSLB #1160820 · as of October 8, 2026
    Active · clear
42. John HVAC Services

    Murrieta, CA · CSLB #1094786 · as of October 8, 2026
    Active · clear
43. Johnny's Air

    La Palma, CA · CSLB #862918 · as of October 8, 2026
    Active · clear
44. Johnny's Air Conditioning Services

    Pasadena, CA · CSLB #554354 · as of October 8, 2026
    Active · clear
45. Johnny's Air Conditioning Services INC

    Pasadena, CA · CSLB #732339 · as of October 8, 2026
    Active · clear
46. John Padilla Plumbing

    San Diego, CA · CSLB #1078951 · as of October 8, 2026
    Active · clear
47. John's Air Company

    Cerritos, CA · CSLB #668838 · as of October 8, 2026
    Active · clear
48. John's Air Conditioning Service

    29 Palms, CA · CSLB #734176 · as of October 8, 2026
    Active · clear
49. John's Heating & Air Conditioning

    Santee, CA · CSLB #880981 · as of October 8, 2026
    Active · clear
50. John's Heating & Air Conditioning A Partnership

    Reno, CA · CSLB #1017876 · as of October 8, 2026
    Active · clear
51. Johnson Air

    Clovis, CA · CSLB #808766 · as of October 8, 2026
    Active · clear
52. Glenn Johnson Cooling & Heating INC

    Blythe, CA · CSLB #994983 · as of October 8, 2026
    Active · clear
53. Johnson Heating And Air Conditioning

    Ventura, CA · CSLB #829745 · as of October 8, 2026
    Active · clear
54. JD Johnson Heating And Air INC

    Riverside, CA · CSLB #1036754 · as of October 8, 2026
    Active · clear
55. Jeff Johnson Air Conditioning & Heating

    Kingsburg, CA · CSLB #721279 · as of October 8, 2026
    Active · clear
56. Johnson Refrigeration INC

    Blythe, CA · CSLB #533106 · as of October 8, 2026
    Active · clear
57. Shawn B Johnson Heating And Cooling

    Windsor, CA · CSLB #912855 · as of October 8, 2026
    Active · clear
58. Johnson's Mechanical

    Norco, CA · CSLB #706169 · as of October 8, 2026
    Active · clear
59. Wallace P Johnson Plumbing & Heating INC

    Atwood, CA · CSLB #262469 · as of October 8, 2026
    Active · clear
60. John S Roy Heating And Cooling INC

    Santa Monica, CA · CSLB #468557 · 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.