Licensed Heating & Air Conditioning (C-20) contractors in San Diego, CA

The California Contractors State License Board (CSLB) lists 163 Heating & Air Conditioning (C-20) contractors in San Diego, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

Showing 1–60 of 163 contractors

1. 4 M Mechanical INC

   San Diego, CA · CSLB #1159043 · as of October 6, 2026
   Active · clear
2. 5 Star Mechanical INC

   San Diego, CA · CSLB #1157122 · as of October 6, 2026
   Active · clear
3. Abc Heating & Air

   San Diego, CA · CSLB #1135277 · as of October 6, 2026
   Active · clear
4. Ace Contractors

   San Diego, CA · CSLB #1031362 · as of October 6, 2026
   Active · clear
5. A C & H Mechanical Corp

   San Diego, CA · CSLB #1023907 · as of October 6, 2026
   Active · clear
6. A / C Mechanical Sol INC

   San Diego, CA · CSLB #923310 · as of October 6, 2026
   Active · clear
7. Mssd Mechanical INC DBA Ac Sure Plan

   San Diego, CA · CSLB #1093749 · as of October 6, 2026
   Active · clear
8. Aeris Mechanical INC

   San Diego, CA · CSLB #981088 · as of October 6, 2026
   Active · clear
9. Affordable Service Appliance INC

   San Diego, CA · CSLB #893403 · as of October 6, 2026
   Active · clear
10. Agair Enterprises INC

    San Diego, CA · CSLB #1092828 · as of October 6, 2026
    Active · clear
11. A G R Mechanical

    San Diego, CA · CSLB #978327 · as of October 6, 2026
    Active · clear
12. Air Logik

    San Diego, CA · CSLB #883537 · as of October 6, 2026
    Active · clear
13. Air Plus Heating & Cooling

    San Diego, CA · CSLB #616223 · as of October 6, 2026
    Active · clear
14. Air Tech Mechanical

    San Diego, CA · CSLB #1115232 · as of October 6, 2026
    Active · clear
15. Ambient Heating & Air Conditioning

    San Diego, CA · CSLB #856050 · as of October 6, 2026
    Active · clear
16. America Heating And Air Conditioning

    San Diego, CA · CSLB #975037 · as of October 6, 2026
    Active · clear
17. American Ace Plumbing And Drain

    San Diego, CA · CSLB #974726 · as of October 6, 2026
    Active · clear
18. Amp HVAC

    San Diego, CA · CSLB #1156795 · as of October 6, 2026
    Active · clear
19. Andrade Cooling And Heating

    San Diego, CA · CSLB #1147575 · as of October 6, 2026
    Active · clear
20. Apex Mechanical Systems INC

    San Diego, CA · CSLB #831345 · as of October 6, 2026
    Active · clear
21. Arctic Airflow Heating & Air Conditioning INC

    San Diego, CA · CSLB #1100944 · as of October 6, 2026
    Active · clear
22. Ascend Plumbing INC

    San Diego, CA · CSLB #1066861 · as of October 6, 2026
    Active · clear
23. Atlas HVAC INC

    San Diego, CA · CSLB #955327 · as of October 6, 2026
    Active · clear
24. Atlas Mechanical INC

    San Diego, CA · CSLB #622960 · as of October 6, 2026
    Active · clear
25. Ats Heating And Air Corp

    San Diego, CA · CSLB #1004762 · as of October 6, 2026
    Active · clear
26. Bluebay Mechanical

    San Diego, CA · CSLB #1148556 · as of October 6, 2026
    Active · clear
27. Bob Jenson Air Conditioning INC

    San Diego, CA · CSLB #340838 · as of October 6, 2026
    Active · clear
28. Buckland Refrigeration INC

    San Diego, CA · CSLB #1020209 · as of October 6, 2026
    Active · clear
29. BY The Book Plumbing Heating Air Conditioning

    San Diego, CA · CSLB #1078955 · as of October 6, 2026
    Active · clear
30. Cal - Cool Mechanical

    San Diego, CA · CSLB #741451 · as of October 6, 2026
    Active · clear
31. Casablanca Heating & Air Conditioning INC

    San Diego, CA · CSLB #526487 · as of October 6, 2026
    Active · clear
32. Caspian Glory INC

    San Diego, CA · CSLB #1113447 · as of October 6, 2026
    Active · clear
33. Castle Comfort

    San Diego, CA · CSLB #1034840 · as of October 6, 2026
    Active · clear
34. Celsius Mechanical

    San Diego, CA · CSLB #1129053 · as of October 6, 2026
    Active · clear
35. CFM Systems INC DBA Chill Factor Mechanical

    San Diego, CA · CSLB #961322 · as of October 6, 2026
    Active · clear
36. Chris Cooling & Heating

    San Diego, CA · CSLB #1161474 · as of October 6, 2026
    Active · clear
37. Classic Plumbing Heating & Air

    San Diego, CA · CSLB #1143182 · as of October 6, 2026
    Active · clear
38. Climate Heating And Air Conditioning INC

    San Diego, CA · CSLB #1048200 · as of October 6, 2026
    Active · clear
39. Climate Paradise

    San Diego, CA · CSLB #1134279 · as of October 6, 2026
    Active · clear
40. Collins Pacific Plumbing INC

    San Diego, CA · CSLB #567701 · as of October 6, 2026
    Active · clear
41. Comfort Air Conditioning And Heating

    San Diego, CA · CSLB #1075238 · as of October 6, 2026
    Active · clear
42. Comfort City Mechanical INC

    San Diego, CA · CSLB #1039387 · as of October 6, 2026
    Active · clear
43. Coolfix Pro INC

    San Diego, CA · CSLB #1132907 · as of October 6, 2026
    Active · clear
44. Cool Guys

    San Diego, CA · CSLB #1156890 · as of October 6, 2026
    Active · clear
45. Cool With Browns HVAC

    San Diego, CA · CSLB #1112905 · as of October 6, 2026
    Active · clear
46. Josue Cortez

    San Diego, CA · CSLB #1083094 · as of October 6, 2026
    Active · clear
47. Cross Breeze Heating & Air

    San Diego, CA · CSLB #1055889 · as of October 6, 2026
    Active · clear
48. Day To Day Heating And Cooling

    San Diego, CA · CSLB #1082620 · as of October 6, 2026
    Active · clear
49. D C A C Air Conditioning

    San Diego, CA · CSLB #1014884 · as of October 6, 2026
    Active · clear
50. Dispatch Heating, Air Conditioning & Refrigeration

    San Diego, CA · CSLB #1130496 · as of October 6, 2026
    Active · clear
51. Dma Mechanical INC

    San Diego, CA · CSLB #1071053 · as of October 6, 2026
    Active · clear
52. Dre's Heating & A / C

    San Diego, CA · CSLB #826794 · as of October 6, 2026
    Active · clear
53. Duct Dynasty Heating & Air

    San Diego, CA · CSLB #1010169 · as of October 6, 2026
    Active · clear
54. Eb Mechanical Services INC

    San Diego, CA · CSLB #1133954 · as of October 6, 2026
    Active · clear
55. Elite Mechanical

    San Diego, CA · CSLB #1051095 · as of October 6, 2026
    Active · clear
56. Essential Heating And Air Conditioning

    San Diego, CA · CSLB #1087501 · as of October 6, 2026
    Active · clear
57. Evarything INC DBA Essential Plumbing

    San Diego, CA · CSLB #912213 · as of October 6, 2026
    Active · clear
58. Everlast HVAC Corp Heating Cooling And Air Conditioning

    San Diego, CA · CSLB #1154898 · as of October 6, 2026
    Active · clear
59. Evo Air

    San Diego, CA · CSLB #1032644 · as of October 6, 2026
    Active · clear
60. Express Plumbing Heating And Air INC

    San Diego, CA · CSLB #954579 · as of October 6, 2026
    Active · clear

See all Heating & Air Conditioning (C-20) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.