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 7,741–7,800 of 8,936 contractors

1. Thermal Services INC

   Lake Elsinore, CA · CSLB #1011907 · as of October 8, 2026
   Active · clear
2. Thermal Tech Heating & Air

   Pasadena, CA · CSLB #1142549 · as of October 8, 2026
   Active · clear
3. Thermal Technic

   Glendale, CA · CSLB #673256 · as of October 8, 2026
   Active · clear
4. Therma-pro Mechanical Services INC

   San Bernardino, CA · CSLB #1051946 · as of October 8, 2026
   Active · clear
5. Therma Tech INC

   San Jose, CA · CSLB #913806 · as of October 8, 2026
   Active · clear
6. Thermaxx Mechanical

   Stockton, CA · CSLB #802624 · as of October 8, 2026
   Active · clear
7. Thermo Cooling INC

   Glendale, CA · CSLB #1135530 · as of October 8, 2026
   Active · clear
8. Thermodynamix INC

   Sacramento, CA · CSLB #1079445 · as of October 8, 2026
   Active · clear
9. Thermo H V A C Refrigeration

   Concord, CA · CSLB #1024929 · as of October 8, 2026
   Active · clear
10. Thermokeen

    Moreno Valley, CA · CSLB #1133760 · as of October 8, 2026
    Active · clear
11. Thermo Pro INC

    Granite Bay, CA · CSLB #1049458 · as of October 8, 2026
    Active · clear
12. Thermo Techs Company

    Lawndale, CA · CSLB #1162289 · as of October 8, 2026
    Active · clear
13. Thermotech Solutions INC

    Carmichael, CA · CSLB #1108591 · as of October 8, 2026
    Active · clear
14. Thermo Temp Services INC

    Los Angeles, CA · CSLB #991781 · as of October 8, 2026
    Active · clear
15. Thermsol

    Hacienda Heights, CA · CSLB #1033123 · as of October 8, 2026
    Active · clear
16. Thermus Mechanical INC

    Citrus Heights, CA · CSLB #855913 · as of October 8, 2026
    Active · clear
17. The Saran Investments INC

    Morgan Hill, CA · CSLB #1056870 · as of October 8, 2026
    Active · clear
18. The Way Mechanical

    San Lorenzo, CA · CSLB #1152130 · as of October 8, 2026
    Active · clear
19. The Weather Tech INC

    Mission Hills, CA · CSLB #1060080 · as of October 8, 2026
    Active · clear
20. Think Blue Mechanical

    Highgrove, CA · CSLB #982696 · as of October 8, 2026
    Active · clear
21. Third Generation Heating & Air Conditioning

    Temecula, CA · CSLB #969231 · as of October 8, 2026
    Active · clear
22. Thomas Ac Heating Technology

    Anaheim, CA · CSLB #1020930 · as of October 8, 2026
    Active · clear
23. Thomas And Sons Heating And Air Conditioning

    Orangevale, CA · CSLB #804930 · as of October 8, 2026
    Active · clear
24. Thomas David James

    Elverta, CA · CSLB #1118096 · as of October 8, 2026
    Active · clear
25. E Thomas H V A C

    Santa Ana, CA · CSLB #893552 · as of October 8, 2026
    Active · clear
26. Thomas Heating & Air

    San Pedro, CA · CSLB #1043711 · as of October 8, 2026
    Active · clear
27. Thomas Sheet Metal INC

    Temecula, CA · CSLB #1016562 · as of October 8, 2026
    Active · clear
28. Thomas & Thomas Heating & Air

    North Highlands, CA · CSLB #1013269 · as of October 8, 2026
    Active · clear
29. Thompson Plumbing Heating And Air Conditioning

    Oceanside, CA · CSLB #974400 · as of October 8, 2026
    Active · clear
30. Thompson's Heating & Air INC

    Woodland, CA · CSLB #884512 · as of October 8, 2026
    Active · clear
31. Thompson Total Temp Corp

    Castaic, CA · CSLB #1124649 · as of October 8, 2026
    Active · clear
32. Thomson Air Conditioning & Heating

    Huntington Beach, CA · CSLB #959811 · as of October 8, 2026
    Active · clear
33. Thornton's Gas Service

    Nicolaus, CA · CSLB #922761 · as of October 8, 2026
    Active · clear
34. Thorough Ac LLC DBA Thorough Ac

    San Diego, CA · CSLB #1058517 · as of October 8, 2026
    Active · clear
35. Thrifty Heating And Air Condition

    Los Angeles, CA · CSLB #751679 · as of October 8, 2026
    Active · clear
36. Thurlow's Heating & Air Conditioning INC

    Victorville, CA · CSLB #551695 · as of October 8, 2026
    Active · clear
37. Tidal Mechanical LLC

    Seal Beach, CA · CSLB #1111188 · as of October 8, 2026
    Active · clear
38. Tier 1 Air Conditioning INC

    Corona, CA · CSLB #1030742 · as of October 8, 2026
    Active · clear
39. Tiger A/c

    Littlerock, CA · CSLB #1103993 · as of October 8, 2026
    Active · clear
40. Tillgreen Solutions HVAC

    Visalia, CA · CSLB #1141469 · as of October 8, 2026
    Active · clear
41. Tilli's Heating And Air

    Elk Grove, CA · CSLB #1120638 · as of October 8, 2026
    Active · clear
42. Tillson Mechanical

    Ramona, CA · CSLB #1076514 · as of October 8, 2026
    Active · clear
43. High Efficiency Solutions INC DBA Timberline Heating & Air Condit

    Redding, CA · CSLB #525939 · as of October 8, 2026
    Active · clear
44. Timely Comfort LLC

    Stockton, CA · CSLB #1113848 · as of October 8, 2026
    Active · clear
45. Timing HVAC Company

    San Leandro, CA · CSLB #1108462 · as of October 8, 2026
    Active · clear
46. Timo's Air Conditioning & Heating INC

    Thousand Palms, CA · CSLB #920062 · as of October 8, 2026
    Active · clear
47. Tim's Heating & A/c

    Reedley, CA · CSLB #451959 · as of October 8, 2026
    Active · clear
48. Tim's Heating & A / C Services

    Cypress, CA · CSLB #953606 · as of October 8, 2026
    Active · clear
49. Tim's Heating & Air Conditioning INC

    Los Angeles, CA · CSLB #625060 · as of October 8, 2026
    Active · clear
50. Tims HVAC INC

    Cypress, CA · CSLB #1009046 · as of October 8, 2026
    Active · clear
51. Tinch Howard Air Conditioning

    Fresno, CA · CSLB #1051724 · as of October 8, 2026
    Active · clear
52. Tinkair INC

    Scotts Valley, CA · CSLB #548814 · as of October 8, 2026
    Active · clear
53. Tinsley Heating And Air

    Lodi, CA · CSLB #1014258 · as of October 8, 2026
    Active · clear
54. Tip Of The Spear HVAC INC

    Anaheim, CA · CSLB #1120961 · as of October 8, 2026
    Active · clear
55. Tip Top Air INC

    Chatsworth, CA · CSLB #1150931 · as of October 8, 2026
    Active · clear
56. Tirado's Heating And Air Conditioning

    Stockton, CA · CSLB #940878 · as of October 8, 2026
    Active · clear
57. Titan A/c

    Oak Park, CA · CSLB #1070624 · as of October 8, 2026
    Active · clear
58. Titan Air Conditioning INC

    Brea, CA · CSLB #1040403 · as of October 8, 2026
    Active · clear
59. Titan Heating & Air Conditioning

    Indio, CA · CSLB #1060104 · as of October 8, 2026
    Active · clear
60. Titan Heating And Air LLC

    Huntington Beach, CA · CSLB #1152116 · 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.