Licensed Heating & Air Conditioning (C-20) contractors in California

The California Contractors State License Board (CSLB) lists 8,995 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 July 2, 2026.

Showing 5,941–6,000 of 8,995 contractors

North Pole Air Conditioning
Industry, CA · CSLB #771198 · as of July 2, 2026
Active · clear
North Star Heating & Cooling
Walnut Creek, CA · CSLB #1142423 · as of July 2, 2026
Active · clear
Northstar Phac INC
Ontario, CA · CSLB #916254 · as of July 2, 2026
Active · clear
North Star Quality
Torrance, CA · CSLB #956073 · as of July 2, 2026
Active · clear
North State Air Conditioning
Willows, CA · CSLB #449275 · as of July 2, 2026
Active · clear
North State Cool And Pool Service
Red Bluff, CA · CSLB #1056833 · as of July 2, 2026
Active · clear
North Valley Heating & Air
Sacramento, CA · CSLB #968682 · as of July 2, 2026
Active · clear
Northwind Heating And Air INC
Tulare, CA · CSLB #1066747 · as of July 2, 2026
Active · clear
North Wind Heating & Cooling INC
San Diego, CA · CSLB #1147131 · as of July 2, 2026
Active · clear
Northwind Refrigeration INC
Avalon, CA · CSLB #824449 · as of July 2, 2026
Active · clear
Northwinds Air LLC
Riverside, CA · CSLB #1139565 · as of July 2, 2026
Active · clear
Norton Air Heating & Ac
San Bernardino, CA · CSLB #819746 · as of July 2, 2026
Active · clear
B L Norton Heating & Air Conditioning
Davis, CA · CSLB #616773 · as of July 2, 2026
Active · clear
Norwalk-la Mirada Plumbing & Heating CO INC
Norwalk, CA · CSLB #271767 · as of July 2, 2026
Active · clear
No Sweat Heating And Air Conditioning INC
Torrance, CA · CSLB #851991 · as of July 2, 2026
Active · clear
Nova Heating And Ac
Sun Valley, CA · CSLB #1086670 · as of July 2, 2026
Active · clear
Nova Heating And Air Conditioning
Merced, CA · CSLB #1024961 · as of July 2, 2026
Active · clear
Novell Custom Heating & Air Conditioning Company
Upland, CA · CSLB #958830 · as of July 2, 2026
Active · clear
Novix Mechanical INC
San Diego, CA · CSLB #1019006 · as of July 2, 2026
Active · clear
Nowakowski INC
Oceanside, CA · CSLB #1118230 · as of July 2, 2026
Active · clear
Noy's Air Conditioning And Heating
Glendora, CA · CSLB #956675 · as of July 2, 2026
Active · clear
N P R Heating And Air Conditioning Corporation
Canyon Country, CA · CSLB #999320 · as of July 2, 2026
Active · clear
NR HVAC
San Diego, CA · CSLB #1130921 · as of July 2, 2026
Active · clear
Nu Aire Heating & A/c
Corona, CA · CSLB #797860 · as of July 2, 2026
Active · clear
Nu-air Services INC
Chatsworth, CA · CSLB #735718 · as of July 2, 2026
Active · clear
Nuair Solutions LLC
Los Angeles, CA · CSLB #1148849 · as of July 2, 2026
Active · clear
Nunez Heating & Air Conditioning
San Jose, CA · CSLB #756332 · as of July 2, 2026
Active · clear
Nunez & Sons Heating & Air Conditioning INC
Arvin, CA · CSLB #1152137 · as of July 2, 2026
Active · clear
Nungaray Indoor Custom Environment - Air
Oxnard, CA · CSLB #862331 · as of July 2, 2026
Active · clear
Nur HVAC INC
Burlingame, CA · CSLB #1109103 · as of July 2, 2026
Active · clear
NVC Chiller INC
Valencia, CA · CSLB #1114924 · as of July 2, 2026
Active · clear
NV HVAC & Construction INC
Walnut Creek, CA · CSLB #1031643 · as of July 2, 2026
Active · clear
NWP Heating And Air
Concord, CA · CSLB #1133687 · as of July 2, 2026
Active · clear
Oak HVAC Service
Beaumont, CA · CSLB #1137189 · as of July 2, 2026
Active · clear
Oakley Heating And Air LLC
Oakley, CA · CSLB #1125470 · as of July 2, 2026
Active · clear
The Oaks Heating & Cooling Solutions
Bakersfield, CA · CSLB #1082249 · as of July 2, 2026
Active · clear
Oak Valley Appliance
Tehachapi, CA · CSLB #726919 · as of July 2, 2026
Active · clear
O A R Heating & Air
Stockton, CA · CSLB #977099 · as of July 2, 2026
Active · clear
Oasis Air Conditioning & Heating
San Juan Capistrano, CA · CSLB #767272 · as of July 2, 2026
Active · clear
Oasis Comfort Cooling And Heating INC
Sherman Oaks, CA · CSLB #1155616 · as of July 2, 2026
Active · clear
Oasis Heating & Air Corp
Redding, CA · CSLB #1107515 · as of July 2, 2026
Active · clear
Oasis Heating And Cooling INC
Kerman, CA · CSLB #1039348 · as of July 2, 2026
Active · clear
Oasis Heating & Cooling
Santa Rosa, CA · CSLB #1063408 · as of July 2, 2026
Active · clear
Oasis HVAC
Fallon, CA · CSLB #1068358 · as of July 2, 2026
Active · clear
Oasis Pacific Mechanical
San Juan Capistrano, CA · CSLB #599270 · as of July 2, 2026
Active · clear
Oasis Plumbing Heating & Air Conditioning
San Marcos, CA · CSLB #1093808 · as of July 2, 2026
Active · clear
Oasis Refrigeration And Appliance
Fresno, CA · CSLB #803080 · as of July 2, 2026
Active · clear
Ob Air Conditioning And Heating
Woodland Hills, CA · CSLB #1037555 · as of July 2, 2026
Active · clear
Obe & Sons INC
Running Springs, CA · CSLB #516351 · as of July 2, 2026
Active · clear
Oc Air Conditioning & Heating
Anaheim, CA · CSLB #1050353 · as of July 2, 2026
Active · clear
Oc Airtech LLC
Tustin, CA · CSLB #1096693 · as of July 2, 2026
Active · clear
Oc Cool Pros INC
Santa Ana, CA · CSLB #1134520 · as of July 2, 2026
Active · clear
Ocean Air Flow INC
Agoura Hills, CA · CSLB #1083053 · as of July 2, 2026
Active · clear
Ocean Air Heating
San Francisco, CA · CSLB #968927 · as of July 2, 2026
Active · clear
Ocean Air & Heating
Aromas, CA · CSLB #494856 · as of July 2, 2026
Active · clear
Ocean Air Heating & Air Conditioning
Chula Vista, CA · CSLB #795740 · as of July 2, 2026
Active · clear
Ocean Air HVAC
Woodland Hills, CA · CSLB #1138032 · as of July 2, 2026
Active · clear
Ocean Air H V A C
Ventura, CA · CSLB #891072 · as of July 2, 2026
Active · clear
Ocean Air INC
Grover Beach, CA · CSLB #872602 · as of July 2, 2026
Active · clear
Ocean Breeze Air INC
Surprise, CA · CSLB #1053741 · as of July 2, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 2, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.