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 5,761–5,820 of 8,995 contractors

MSP Heating And Air LLC
Riverside, CA · CSLB #1038253 · as of July 2, 2026
Active · clear
M & S Plumbing
San Diego, CA · CSLB #924845 · as of July 2, 2026
Active · clear
M S Reliable Heating And Cooling INC
Pomona, CA · CSLB #1050276 · as of July 2, 2026
Active · clear
Mtac Heating & Air INC
Anaheim, CA · CSLB #1135465 · as of July 2, 2026
Active · clear
M T B
Petaluma, CA · CSLB #762453 · as of July 2, 2026
Active · clear
MTC Heating & Air Conditioning INC
North Hills, CA · CSLB #1039699 · as of July 2, 2026
Active · clear
MT Cooling & Heating INC
Clovis, CA · CSLB #1096518 · as of July 2, 2026
Active · clear
M - Tech Air Conditioning Services INC
Indio, CA · CSLB #1019044 · as of July 2, 2026
Active · clear
Mtek Air Conditioning & Heating Control
Fontana, CA · CSLB #1149130 · as of July 2, 2026
Active · clear
M T E Mechanical INC
Van Nuys, CA · CSLB #707377 · as of July 2, 2026
Active · clear
MT Heating And Cooling
Paso Robles, CA · CSLB #1113673 · as of July 2, 2026
Active · clear
MTN Air Mechanical
Whittier, CA · CSLB #1139647 · as of July 2, 2026
Active · clear
MT Rose Heating & Air Conditioning INC
Reno, CA · CSLB #770238 · as of July 2, 2026
Active · clear
Robert B Muela
Thermal, CA · CSLB #746007 · as of July 2, 2026
Active · clear
Dan Muller Heating And Air Conditioning
San Dimas, CA · CSLB #943592 · as of July 2, 2026
Active · clear
Multi Air Service LLC
Pasadena, CA · CSLB #1026812 · as of July 2, 2026
Active · clear
Multi-air Services INC
Castaic, CA · CSLB #1029529 · as of July 2, 2026
Active · clear
Multi Mechanical
Sylmar, CA · CSLB #1124036 · as of July 2, 2026
Active · clear
Mumford Scott Heating And Air Conditioning
Simi Valley, CA · CSLB #905826 · as of July 2, 2026
Active · clear
Mundy's Refrigeration
Lancaster, CA · CSLB #626868 · as of July 2, 2026
Active · clear
Munguia Heating & Air Conditioning
Mc Farland, CA · CSLB #931450 · as of July 2, 2026
Active · clear
Oscar Munguia
San Jose, CA · CSLB #1089838 · as of July 2, 2026
Active · clear
Ken Irwin DBA Murdoch's Heating
Santa Barbara, CA · CSLB #662222 · as of July 2, 2026
Active · clear
Ivan Murillo
Placentia, CA · CSLB #1078202 · as of July 2, 2026
Active · clear
Stephen Michael Murphey
Santa Rosa, CA · CSLB #717836 · as of July 2, 2026
Active · clear
Murphy Heating And Air Conditioning LLC
Vista, CA · CSLB #1110511 · as of July 2, 2026
Active · clear
Murphy Mechanical HVAC INC
Escondido, CA · CSLB #1034996 · as of July 2, 2026
Active · clear
Murphys Heating And Air Conditioning
Murphys, CA · CSLB #1010686 · as of July 2, 2026
Active · clear
Thomas J Murphy
San Luis Obispo, CA · CSLB #827963 · as of July 2, 2026
Active · clear
Murray Mechanical Services
Folsom, CA · CSLB #618050 · as of July 2, 2026
Active · clear
Murray's HVAC Systems
Vallejo, CA · CSLB #1107668 · as of July 2, 2026
Active · clear
Norberto Murrieta
Norwalk, CA · CSLB #996735 · as of July 2, 2026
Active · clear
Mushrush Heating & Air
Lincoln, CA · CSLB #971711 · as of July 2, 2026
Active · clear
Musial Heating & Air INC
Newark, CA · CSLB #844028 · as of July 2, 2026
Active · clear
Muvon LLC
Sacramento, CA · CSLB #1142955 · as of July 2, 2026
Active · clear
MW Mechanical INC
Escondido, CA · CSLB #1002804 · as of July 2, 2026
Active · clear
MY Ac Guy
Chino Hills, CA · CSLB #1038524 · as of July 2, 2026
Active · clear
Myco Custom Metalworks
Temecula, CA · CSLB #932005 · as of July 2, 2026
Active · clear
MYD HVAC INC
Los Angeles, CA · CSLB #1109659 · as of July 2, 2026
Active · clear
Myers Heating & Air Conditioning
Citrus Heights, CA · CSLB #730080 · as of July 2, 2026
Active · clear
Kevin Myers Heating And Air Conditioning
Escondido, CA · CSLB #947412 · as of July 2, 2026
Active · clear
MY Heating & Air
Hollister, CA · CSLB #1089012 · as of July 2, 2026
Active · clear
MZ Cooling & Heating INC
Sunland, CA · CSLB #1113163 · as of July 2, 2026
Active · clear
M Z Mechanical
Santee, CA · CSLB #714343 · as of July 2, 2026
Active · clear
N2ec Aircon And Heating Corporation
Corona, CA · CSLB #1003714 · as of July 2, 2026
Active · clear
Nadine Refrigeration LLC
Cerritos, CA · CSLB #1156252 · as of July 2, 2026
Active · clear
Nadine Refrigeration Service INC
Artesia, CA · CSLB #816274 · as of July 2, 2026
Active · clear
N A G Air Conditioning & Heating Systems INC
Winnetka, CA · CSLB #1025354 · as of July 2, 2026
Active · clear
Nagare Quality Air Conditioning INC
Fresno, CA · CSLB #735518 · as of July 2, 2026
Active · clear
Nahvac INC
Sunland, CA · CSLB #1153586 · as of July 2, 2026
Active · clear
Hormoz Najarian
Porter Ranch, CA · CSLB #1138154 · as of July 2, 2026
Active · clear
Nalk Air Conditioning And Heating INC
Fresno, CA · CSLB #497476 · as of July 2, 2026
Active · clear
Nani Heating & Air Conditioning
San Francisco, CA · CSLB #1063316 · as of July 2, 2026
Active · clear
Napalm's Heating And Air Conditioning
Merced, CA · CSLB #1143406 · as of July 2, 2026
Active · clear
Napinder Singh Punia
Etiwanda, CA · CSLB #1145508 · as of July 2, 2026
Active · clear
Napoles Heating & Air Conditioning
Bakersfield, CA · CSLB #1077347 · as of July 2, 2026
Active · clear
Nash Heating & Air Conditioning
El Cajon, CA · CSLB #1100901 · as of July 2, 2026
Active · clear
Bill Green JR DBA National Chimney
San Francisco, CA · CSLB #733653 · as of July 2, 2026
Active · clear
National H V A C Services
Siant Louis, CA · CSLB #997859 · as of July 2, 2026
Active · clear
National Refrigeration Services LLC
Riverside, CA · CSLB #1111117 · 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.