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 1, 2026.

Showing 4,861–4,920 of 8,995 contractors

J W Heating And Air Conditioning LLC
San Carlos, CA · CSLB #832485 · as of July 1, 2026
Active · clear
JYJ Air Conditioning INC
Riverside, CA · CSLB #1143091 · as of July 1, 2026
Active · clear
JY Mechanical LLC
San Diego, CA · CSLB #1108359 · as of July 1, 2026
Active · clear
J Z Air INC
Los Angeles, CA · CSLB #926120 · as of July 1, 2026
Active · clear
J Z Heating And Air Conditioning
Norwalk, CA · CSLB #1094153 · as of July 1, 2026
Active · clear
J Z HVAC Contractor
San Bruno, CA · CSLB #1121949 · as of July 1, 2026
Active · clear
JZS Master Heating & Cooling Services
Riverside, CA · CSLB #1152275 · as of July 1, 2026
Active · clear
K2 Air
La Habra, CA · CSLB #965869 · as of July 1, 2026
Active · clear
K2 Development Group
Marina Del Rey, CA · CSLB #966908 · as of July 1, 2026
Active · clear
Kadi4 LLC
San Francisco, CA · CSLB #1152318 · as of July 1, 2026
Active · clear
Don E Kadlec HVAC
Santa Ynez, CA · CSLB #809445 · as of July 1, 2026
Active · clear
Kadlec Sheet Metals
Santa Barbara, CA · CSLB #483670 · as of July 1, 2026
Active · clear
Kahuna Comfort Plumbing Heating & Air
Anaheim, CA · CSLB #1040076 · as of July 1, 2026
Active · clear
Kairos Air INC
Reseda, CA · CSLB #1124885 · as of July 1, 2026
Active · clear
Kaiser Air Conditioning And Sheet Metal INC
Oxnard, CA · CSLB #407980 · as of July 1, 2026
Active · clear
Kaiser's Heating & Air
Stockton, CA · CSLB #748147 · as of July 1, 2026
Active · clear
Kaldess A C INC
Woodland Hills, CA · CSLB #978929 · as of July 1, 2026
Active · clear
Kaleesi Air
Pasadena, CA · CSLB #1005492 · as of July 1, 2026
Active · clear
Kali Air Heating And Air Conditioning
Woodland Hills, CA · CSLB #1079296 · as of July 1, 2026
Active · clear
K Kalka Heating Plumbing & Air INC DBA Kalka Plumbing Heating &
Irvine, CA · CSLB #677889 · as of July 1, 2026
Active · clear
Kanawi Air
Los Angeles, CA · CSLB #762721 · as of July 1, 2026
Active · clear
Kano Heating And Cooling INC
El Cajon, CA · CSLB #1156314 · as of July 1, 2026
Active · clear
Kao Ac Heating & Air Conditioning
Sacramento, CA · CSLB #1071832 · as of July 1, 2026
Active · clear
Kaplan Heating & Air
Mira Loma, CA · CSLB #756226 · as of July 1, 2026
Active · clear
K Appliance
Rancho Cordova, CA · CSLB #1012897 · as of July 1, 2026
Active · clear
Kashou Climate Control INC
Corona, CA · CSLB #813791 · as of July 1, 2026
Active · clear
Kashtan Air Company
San Diego, CA · CSLB #896376 · as of July 1, 2026
Active · clear
Kasner's Heating & Cooling And Plumbing
Clovis, CA · CSLB #1090847 · as of July 1, 2026
Active · clear
Kastro's Heating & Cooling
Whittier, CA · CSLB #1078356 · as of July 1, 2026
Active · clear
Kav Air-heating & Air Conditioning
Pasadena, CA · CSLB #733069 · as of July 1, 2026
Active · clear
Kaven Mechanical INC
Paramount, CA · CSLB #812682 · as of July 1, 2026
Active · clear
Kazen Custom Heating & Air
Vacaville, CA · CSLB #882881 · as of July 1, 2026
Active · clear
KB Air
West Covina, CA · CSLB #1132227 · as of July 1, 2026
Active · clear
K-bar Heating And Cooling
Chino, CA · CSLB #1121713 · as of July 1, 2026
Active · clear
KB Heating & Air Conditioning LLC
Valencia, CA · CSLB #1126939 · as of July 1, 2026
Active · clear
KB Heating & Air INC
Oroville, CA · CSLB #906476 · as of July 1, 2026
Active · clear
KBL Heating And Air
Sacramento, CA · CSLB #1134171 · as of July 1, 2026
Active · clear
KC Home Services
Santa Rosa, CA · CSLB #628726 · as of July 1, 2026
Active · clear
KC Squared Mechanical
San Diego, CA · CSLB #1104161 · as of July 1, 2026
Active · clear
K & D Heating & Air Conditioning INC
Reseda, CA · CSLB #951664 · as of July 1, 2026
Active · clear
K D Mechanical
Grass Valley, CA · CSLB #985571 · as of July 1, 2026
Active · clear
Keelo Heating & Air Conditioning & Ventilating
Torrance, CA · CSLB #854736 · as of July 1, 2026
Active · clear
Keeney H V A C
Antioch, CA · CSLB #1056961 · as of July 1, 2026
Active · clear
Keen Tech Mechanical Heating Ventilation Air Conditioning
Bellflower, CA · CSLB #1097649 · as of July 1, 2026
Active · clear
Keep Your Kool Solutions LLC
Sacramento, CA · CSLB #1157298 · as of July 1, 2026
Active · clear
Keith Heating And Air Conditioning
Simi Valley, CA · CSLB #702721 · as of July 1, 2026
Active · clear
Keith's HVAC Services
Willows, CA · CSLB #1120581 · as of July 1, 2026
Active · clear
Keller Heating & Air Conditioning INC
Gilroy, CA · CSLB #1030639 · as of July 1, 2026
Active · clear
Kelley's Comfort Heating & Cooling INC
Madera, CA · CSLB #1069865 · as of July 1, 2026
Active · clear
Kell Mechanical Heating And Air Conditioning INC
Livermore, CA · CSLB #993569 · as of July 1, 2026
Active · clear
D & L Kelly Heating And Air Conditioning
Santa Rosa, CA · CSLB #951499 · as of July 1, 2026
Active · clear
Kelly Indoor Comfort Systems
Martinez, CA · CSLB #824690 · as of July 1, 2026
Active · clear
Kelly Kooling INC
Woodland, CA · CSLB #1104625 · as of July 1, 2026
Active · clear
Kelly Plumbing & Heating INC
Novato, CA · CSLB #688049 · as of July 1, 2026
Active · clear
Kels Heating And Cooling
Millbrae, CA · CSLB #1095352 · as of July 1, 2026
Active · clear
Kemnitz Air Conditioning And Heating INC
Irvine, CA · CSLB #695874 · as of July 1, 2026
Active · clear
Ken Cool Air INC
Elk Grove, CA · CSLB #1142584 · as of July 1, 2026
Active · clear
Kendall Air Solutions INC
Hollister, CA · CSLB #1106645 · as of July 1, 2026
Active · clear
Kendrick Energy Efficient Heating & Air
Rocklin, CA · CSLB #891246 · as of July 1, 2026
Active · clear
Kendrick Mechanical LLC
Applegate, CA · CSLB #1119824 · as of July 1, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 1, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.