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 5,341–5,400 of 8,936 contractors

1. Mark's Air Conditioning And Heating

   Mission Hills, CA · CSLB #949932 · as of October 8, 2026
   Active · clear
2. Marks Heating & Air INC

   El Cajon, CA · CSLB #995729 · as of October 8, 2026
   Active · clear
3. Mark's Heating & Cooling

   Simi Valley, CA · CSLB #748445 · as of October 8, 2026
   Active · clear
4. Marlett Mechanical & Supplies

   San Diego, CA · CSLB #865626 · as of October 8, 2026
   Active · clear
5. Marquez Heating & Cooling

   Porterville, CA · CSLB #978968 · as of October 8, 2026
   Active · open complaint
6. Marraccini Plumbing Heating Cooling & Controls INC

   Yerington, CA · CSLB #1120201 · as of October 8, 2026
   Active · clear
7. Martcor Heating & Air INC

   San Jose, CA · CSLB #1152630 · as of October 8, 2026
   Active · clear
8. Michael Martel

   La Verne, CA · CSLB #917443 · as of October 8, 2026
   Active · clear
9. Mar - Temp

   Temecula, CA · CSLB #912383 · as of October 8, 2026
   Active · clear
10. Martin A / C

    Woodland Hills, CA · CSLB #829450 · as of October 8, 2026
    Active · clear
11. The K Company Incorporated DBA The C J Martin HVAC Company

    Akron, CA · CSLB #989846 · as of October 8, 2026
    Active · clear
12. Martinell's Heating & Air Conditioning

    San Bernardino, CA · CSLB #863144 · as of October 8, 2026
    Active · clear
13. Martinez Climate Control

    San Dimas, CA · CSLB #922415 · as of October 8, 2026
    Active · clear
14. Martinez Heating & Air Conditioning INC

    Merced, CA · CSLB #803946 · as of October 8, 2026
    Active · clear
15. Martinez Heating And Air

    Escondido, CA · CSLB #1106400 · as of October 8, 2026
    Active · clear
16. Juan Eloy Martinez

    Shafter, CA · CSLB #1084998 · as of October 8, 2026
    Active · clear
17. Rolando Oriel Martinez

    Chico, CA · CSLB #1026086 · as of October 8, 2026
    Active · clear
18. Santiago Alexander Martinez

    North Hills, CA · CSLB #1118300 · as of October 8, 2026
    Active · clear
19. Martinez Service HVAC

    Lake Forest, CA · CSLB #1030354 · as of October 8, 2026
    Active · clear
20. Martin Family HVAC INC

    Nuevo, CA · CSLB #1070394 · as of October 8, 2026
    Active · clear
21. Martinico And Sons INC

    San Jose, CA · CSLB #163059 · as of October 8, 2026
    Active · clear
22. J Martin Indoor Air Quality LLC

    Anaheim, CA · CSLB #998956 · as of October 8, 2026
    Active · clear
23. Jose Martin

    Apple Valley, CA · CSLB #896755 · as of October 8, 2026
    Active · clear
24. Martins A/c

    La Puente, CA · CSLB #1054089 · as of October 8, 2026
    Active · clear
25. William Lawrence Martin

    Temecula, CA · CSLB #544828 · as of October 8, 2026
    Active · clear
26. Martis Valley Mechanical INC

    Truckee, CA · CSLB #964634 · as of October 8, 2026
    Active · clear
27. Marvair

    Palmdale, CA · CSLB #1038032 · as of October 8, 2026
    Active · clear
28. Marvel Air Conditioning & Heating INC

    La Verne, CA · CSLB #790684 · as of October 8, 2026
    Active · clear
29. Jose L. Marquez DBA Marvin's Plumbing And Heating

    Long Beach, CA · CSLB #797111 · as of October 8, 2026
    Active · clear
30. Marwan Heating & A/c Service

    Upland, CA · CSLB #1050518 · as of October 8, 2026
    Active · clear
31. Masco & Son's Heating And Air Conditioning INC

    Apple Valley, CA · CSLB #866785 · as of October 8, 2026
    Active · clear
32. Masley Mechanical

    Chino Hills, CA · CSLB #1141988 · as of October 8, 2026
    Active · clear
33. Mason Mechanical Services

    Novato, CA · CSLB #692130 · as of October 8, 2026
    Active · clear
34. JB Mechanical INC DBA Mas Service

    Antioch, CA · CSLB #498289 · as of October 8, 2026
    Active · clear
35. Massone Mechanical INC

    Alamo, CA · CSLB #615532 · as of October 8, 2026
    Active · clear
36. Master Air Tech

    Moreno Valley, CA · CSLB #1042024 · as of October 8, 2026
    Active · clear
37. Master Chill Heating And Air

    Ontario, CA · CSLB #1138989 · as of October 8, 2026
    Active · clear
38. Master Conditioning INC

    Chino, CA · CSLB #494352 · as of October 8, 2026
    Active · clear
39. Master Cooling

    Moorpark, CA · CSLB #327627 · as of October 8, 2026
    Active · clear
40. Master Cooling Corp

    Moorpark, CA · CSLB #656552 · as of October 8, 2026
    Active · clear
41. Master Cool Tech

    San Fernando, CA · CSLB #1129499 · as of October 8, 2026
    Active · clear
42. Master Flow Heating & Air Conditioning INC

    Fallbrook, CA · CSLB #942505 · as of October 8, 2026
    Active · clear
43. Master Maintenance Home Services INC

    San Jose, CA · CSLB #1132390 · as of October 8, 2026
    Active · clear
44. Mastersplit HVAC

    Desert Hot Springs, CA · CSLB #1160346 · as of October 8, 2026
    Active · clear
45. Master Tech Mechanical INC

    Redlands, CA · CSLB #739284 · as of October 8, 2026
    Active · clear
46. Master White Ac INC

    Chino Hills, CA · CSLB #1150374 · as of October 8, 2026
    Active · clear
47. Matafied Mechanical

    Livermore, CA · CSLB #986098 · as of October 8, 2026
    Active · clear
48. Mata Heating And Air Conditioning LLC

    Menlo Park, CA · CSLB #1153141 · as of October 8, 2026
    Active · clear
49. Matheneys Plumbing & Heating

    Danville, CA · CSLB #933520 · as of October 8, 2026
    Active · clear
50. Matrix HVAC INC

    Corona, CA · CSLB #1030168 · as of October 8, 2026
    Active · clear
51. Matson Mechanical INC

    Roseville, CA · CSLB #1024061 · as of October 8, 2026
    Active · clear
52. Matteri's Heating & Air

    Crows Landing, CA · CSLB #912379 · as of October 8, 2026
    Active · clear
53. Matt's Heating & Air

    Stanton, CA · CSLB #1013976 · as of October 8, 2026
    Active · clear
54. Matt's HVAC

    Mentone, CA · CSLB #1094544 · as of October 8, 2026
    Active · clear
55. Mav Heating And Airconditioning

    Whittier, CA · CSLB #1007937 · as of October 8, 2026
    Active · clear
56. Mav Mechanical INC

    Lakeside, CA · CSLB #1083329 · as of October 8, 2026
    Active · clear
57. Max Aire Heating & Cooling INC

    Morgan Hill, CA · CSLB #1108868 · as of October 8, 2026
    Active · clear
58. Max Air HVAC

    Escondido, CA · CSLB #1091653 · as of October 8, 2026
    Active · clear
59. Maxair HVAC

    Rancho Cucamonga, CA · CSLB #953623 · as of October 8, 2026
    Active · clear
60. Max Comfort Solutions INC

    Elverta, CA · CSLB #1057009 · 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.