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 6,481–6,540 of 8,936 contractors

1. Pro Tech Heating & Ac

   Gridley, CA · CSLB #1055300 · as of October 8, 2026
   Active · clear
2. Pro-tech Mechanical Service

   Rancho Cordova, CA · CSLB #1001978 · as of October 8, 2026
   Active · clear
3. Pro Temp Mechanical INC

   Santa Clara, CA · CSLB #753319 · as of October 8, 2026
   Active · clear
4. Protemp Solutions LLC

   San Diego, CA · CSLB #1157070 · as of October 8, 2026
   Active · clear
5. Prothermal LLC

   Escondido, CA · CSLB #1107712 · as of October 8, 2026
   Active · clear
6. Protocall LLC

   Longview, CA · CSLB #1143503 · as of October 8, 2026
   Active · clear
7. Protocol Mechanical & Air Services LLC

   West Hollywood, CA · CSLB #1161397 · as of October 8, 2026
   Active · clear
8. Proventix Air INC

   Chatsworth, CA · CSLB #1160684 · as of October 8, 2026
   Active · clear
9. Provident Refrigeration INC

   Orange, CA · CSLB #835451 · as of October 8, 2026
   Active · clear
10. Provision Heating & Air Conditioning CO

    Vista, CA · CSLB #1125408 · as of October 8, 2026
    Active · clear
11. Pro West Mechanical INC

    Tustin, CA · CSLB #974570 · as of October 8, 2026
    Active · clear
12. Doctor Home Services INC DBA PR Wave Mechanical Contractors

    Vista, CA · CSLB #1089024 · as of October 8, 2026
    Active · clear
13. Psa Prompt Service Appliances INC

    Sherman Oaks, CA · CSLB #750221 · as of October 8, 2026
    Active · clear
14. PSP Mechanical

    Roseville, CA · CSLB #1112019 · as of October 8, 2026
    Active · clear
15. Psychro Air Techs

    Los Angeles, CA · CSLB #1146994 · as of October 8, 2026
    Active · clear
16. P T Cooling & Heating

    San Pablo, CA · CSLB #859036 · as of October 8, 2026
    Active · clear
17. Jesus Baez Puerta

    Desert Hot Springs, CA · CSLB #975017 · as of October 8, 2026
    Active · clear
18. Pulse HVAC INC

    Carmichael, CA · CSLB #1104726 · as of October 8, 2026
    Active · clear
19. Punk Rock Plumbing Services

    Rancho Cucamonga, CA · CSLB #842826 · as of October 8, 2026
    Active · clear
20. Purcell Air Conditioning INC

    Orange, CA · CSLB #915946 · as of October 8, 2026
    Active · clear
21. Pur Climate INC

    Chatsworth, CA · CSLB #1136700 · as of October 8, 2026
    Active · clear
22. Purdy Cool - Air Conditioning And Heating

    Santa Clarita, CA · CSLB #797256 · as of October 8, 2026
    Active · clear
23. Pure Air Comfortable INC

    El Cajon, CA · CSLB #1071535 · as of October 8, 2026
    Active · clear
24. Pure Air Eco Solutions

    Ridgecrest, CA · CSLB #734684 · as of October 8, 2026
    Active · clear
25. Pure Air La INC

    Marina Del Rey, CA · CSLB #1099937 · as of October 8, 2026
    Active · clear
26. Pure Air Mechanical

    Sacramento, CA · CSLB #1117041 · as of October 8, 2026
    Active · clear
27. Pure Air Solutions

    San Jose, CA · CSLB #1125430 · as of October 8, 2026
    Active · clear
28. Pure Comfort Heating And Cooling HVAC

    Fresno, CA · CSLB #1152375 · as of October 8, 2026
    Active · clear
29. Pure Heating And Cooling LLC

    North Hills, CA · CSLB #1137279 · as of October 8, 2026
    Active · clear
30. Pure Plumbing Solutions - Rooter

    Gilroy, CA · CSLB #1050554 · as of October 8, 2026
    Active · clear
31. Pureskyy Air Conditioning & Plumbing Repair Services CO

    Palm Springs, CA · CSLB #1123008 · as of October 8, 2026
    Active · clear
32. Purified Air Heating And Air Conditioning INC

    Pasadena, CA · CSLB #1082029 · as of October 8, 2026
    Active · clear
33. Pyramid Heating & Cooling INC

    North Hollywood, CA · CSLB #1058979 · as of October 8, 2026
    Active · clear
34. Q4 Mechanical Corporation

    San Francisco, CA · CSLB #1006003 · as of October 8, 2026
    Active · open complaint
35. Q Air Heating & Air Conditioning INC

    Claremont, CA · CSLB #1007850 · as of October 8, 2026
    Active · clear
36. Qiang HVAC Service

    Fremont, CA · CSLB #1122339 · as of October 8, 2026
    Active · clear
37. Qiang Li

    Sacramento, CA · CSLB #1051033 · as of October 8, 2026
    Active · clear
38. Qin HVAC

    Rowland Heights, CA · CSLB #1161560 · as of October 8, 2026
    Active · clear
39. QNZ Mechanical

    La Habra, CA · CSLB #1142009 · as of October 8, 2026
    Active · clear
40. Q-services Heating & Air Conditioning

    San Bernardino, CA · CSLB #1157433 · as of October 8, 2026
    Active · clear
41. Qualified HVAC

    Fair Oaks, CA · CSLB #1094792 · as of October 8, 2026
    Active · clear
42. Qualin Heating And Air

    San Diego, CA · CSLB #1079207 · as of October 8, 2026
    Active · clear
43. Quality Ac Service

    San Clemente, CA · CSLB #745994 · as of October 8, 2026
    Active · clear
44. Quality Air

    Burbank, CA · CSLB #864475 · as of October 8, 2026
    Active · clear
45. Quality Air Condition And Heating INC

    Tarzana, CA · CSLB #903052 · as of October 8, 2026
    Active · clear
46. Quality Air Conditioning & Heating

    Palm Desert, CA · CSLB #1028196 · as of October 8, 2026
    Active · clear
47. Quality Air Conditioning Heating And Refrigeration LLC

    Yucca Valley, CA · CSLB #1102330 · as of October 8, 2026
    Active · clear
48. Quality Air Heating & Cooling

    Bellflower, CA · CSLB #983504 · as of October 8, 2026
    Active · clear
49. Quality Air Heating & Cooling INC

    Van Nuys, CA · CSLB #1005595 · as of October 8, 2026
    Active · clear
50. Quality Air Industries INC

    Anaheim, CA · CSLB #1052628 · as of October 8, 2026
    Active · clear
51. Qualitycare Air Services INC

    Grand Terrace, CA · CSLB #1097496 · as of October 8, 2026
    Active · clear
52. Quality Comfort Heating & Air Conditioning

    Oxnard, CA · CSLB #1087578 · as of October 8, 2026
    Active · clear
53. Quality Comfort Heating & Air Conditioning INC

    Palo Alto, CA · CSLB #985457 · as of October 8, 2026
    Active · clear
54. Quality Cooling

    Westminster, CA · CSLB #473165 · as of October 8, 2026
    Active · clear
55. Quality First Plumbing Heating And Air Conditioning INC

    Bloomington, CA · CSLB #903171 · as of October 8, 2026
    Active · clear
56. Quality Heating & Air Conditioning

    Orange, CA · CSLB #960363 · as of October 8, 2026
    Active · clear
57. A Quality Heating & Air Conditioning INC

    Riverside, CA · CSLB #983174 · as of October 8, 2026
    Active · clear
58. Quality Heating & Air Conditioning Service

    American Canyon, CA · CSLB #634252 · as of October 8, 2026
    Active · clear
59. Quality Heating And Cooling

    Fallbrook, CA · CSLB #915009 · as of October 8, 2026
    Active · clear
60. Quality Heating & Cooling

    Pacific Grove, CA · CSLB #1053017 · 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.