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 5,281–5,340 of 8,995 contractors

M1 Mechanical Corp
Castro Valley, CA · CSLB #1129897 · as of July 1, 2026
Active · clear
M-23 Mechanical Systems
Danville, CA · CSLB #1083192 · as of July 1, 2026
Active · clear
M2 Energy Services INC DBA M2 Mechanical
Orangevale, CA · CSLB #1074283 · as of July 1, 2026
Active · clear
M3 Mechanical
Anaheim, CA · CSLB #786760 · as of July 1, 2026
Active · clear
M A A G Air Conditioning
Rialto, CA · CSLB #804368 · as of July 1, 2026
Active · clear
Mac Air Heating And Air Conditioning
Camarillo, CA · CSLB #772239 · as of July 1, 2026
Active · clear
Macarthur Mechanical
Ramona, CA · CSLB #1036205 · as of July 1, 2026
Active · clear
Macawsome LLC
Fontana, CA · CSLB #988339 · as of July 1, 2026
Active · clear
Macco Mechanical
Lancaster, CA · CSLB #1142464 · as of July 1, 2026
Active · clear
Machuca Heating And Air Conditioning
Sun Valley, CA · CSLB #1117573 · as of July 1, 2026
Active · clear
Macias Mechanical
Watsonville, CA · CSLB #898192 · as of July 1, 2026
Active · clear
Mackey Heating & Air Conditioning
Santa Clarita, CA · CSLB #880481 · as of July 1, 2026
Active · clear
Mack's Air Conditioning And Heating Services Corporation
Oro Grande, CA · CSLB #1043714 · as of July 1, 2026
Active · clear
Brenton Macleod Heating & Air
Vista, CA · CSLB #980151 · as of July 1, 2026
Active · clear
Macone Heating And Air Conditioning
Woodland Hills, CA · CSLB #914820 · as of July 1, 2026
Active · clear
Mac Refrigeration And Air Conditioning CO
Diamond Bar, CA · CSLB #580557 · as of July 1, 2026
Active · clear
Macro Mechanical INC
Murrieta, CA · CSLB #968322 · as of July 1, 2026
Active · clear
Mac's Aire Service
San Bernardino, CA · CSLB #878306 · as of July 1, 2026
Active · clear
Mac's Aire Service
San Bernardino, CA · CSLB #441003 · as of July 1, 2026
Active · clear
Made Simple Heating & Air INC
Santa Clara, CA · CSLB #1056274 · as of July 1, 2026
Active · clear
Madison Air INC
Anaheim, CA · CSLB #740225 · as of July 1, 2026
Active · clear
Madison Appliance Heating & Air Conditioning
Oxnard, CA · CSLB #788351 · as of July 1, 2026
Active · clear
Mad Mechanical HVAC Corp
Covina, CA · CSLB #1124816 · as of July 1, 2026
Active · clear
Madriz Mechanical
Santa Rosa, CA · CSLB #1100670 · as of July 1, 2026
Active · clear
Eugene Y Ma
Buena Park, CA · CSLB #1021607 · as of July 1, 2026
Active · clear
Magana Heating & Air INC
Colton, CA · CSLB #961871 · as of July 1, 2026
Active · clear
Mag Heating And Air Conditioning
Paramount, CA · CSLB #1146531 · as of July 1, 2026
Active · clear
Magics Heating And Air LLC
Lake Elsinore, CA · CSLB #1041146 · as of July 1, 2026
Active · clear
Magic Tech
Montrose, CA · CSLB #943327 · as of July 1, 2026
Active · clear
Magna Plumbing
Anaheim, CA · CSLB #629978 · as of July 1, 2026
Active · clear
Magnison And Moen INC
Ontario, CA · CSLB #264898 · as of July 1, 2026
Active · clear
Magnolia Heating & Cooling INC
Riverside, CA · CSLB #815323 · as of July 1, 2026
Active · clear
Magnum HVAC
Riverside, CA · CSLB #794538 · as of July 1, 2026
Active · clear
Mark Magyar
Temecula, CA · CSLB #1077865 · as of July 1, 2026
Active · clear
M & A HVAC INC
Granada Hills, CA · CSLB #1138985 · as of July 1, 2026
Active · clear
Mailan A / C & Heating LLC
Glendale, CA · CSLB #1104916 · as of July 1, 2026
Active · clear
Main Air INC
San Bruno, CA · CSLB #1032704 · as of July 1, 2026
Active · clear
Maintech Service
Pacifica, CA · CSLB #652085 · as of July 1, 2026
Active · clear
Majestic Heating And Air Conditioning
San Jose, CA · CSLB #1130634 · as of July 1, 2026
Active · clear
Major League Comfort Systems
Oceanside, CA · CSLB #984731 · as of July 1, 2026
Active · clear
Make It Happen Air Conditioning CO
La Puente, CA · CSLB #1081433 · as of July 1, 2026
Active · clear
Make It Work Ac Service INC
Valencia, CA · CSLB #1124761 · as of July 1, 2026
Active · clear
Maldonado Heating And Air Conditioning
Hawaiian Gardens, CA · CSLB #1126687 · as of July 1, 2026
Active · clear
Avo Maleky
Sylmar, CA · CSLB #1027542 · as of July 1, 2026
Active · clear
Malibu Heating & Air Conditioning INC
Gilroy, CA · CSLB #403858 · as of July 1, 2026
Active · clear
Lizhong Ma
Brea, CA · CSLB #1067488 · as of July 1, 2026
Active · clear
Timothy Elias Malki
Upland, CA · CSLB #832293 · as of July 1, 2026
Active · clear
Mallard Mechanical Heating & Air Conditioning
Morgan Hill, CA · CSLB #1101784 · as of July 1, 2026
Active · clear
Malmac
Escondido, CA · CSLB #781230 · as of July 1, 2026
Active · clear
Mal Mahon
Placentia, CA · CSLB #1064542 · as of July 1, 2026
Active · clear
Malsan Plumbing
Los Angeles, CA · CSLB #1031903 · as of July 1, 2026
Active · clear
Maltsberger Mechanical
Vacaville, CA · CSLB #1074341 · as of July 1, 2026
Active · clear
M&a Mechanical Service LLC
Livermore, CA · CSLB #1141566 · as of July 1, 2026
Active · clear
Mammoth Air Company
Los Angeles, CA · CSLB #1099812 · as of July 1, 2026
Active · clear
Mancuso Air Services
Stockton, CA · CSLB #985335 · as of July 1, 2026
Active · clear
Charlie Mandujano Flores
Huntington Beach, CA · CSLB #1083592 · as of July 1, 2026
Active · clear
Mannino Heating & Cooling
Oceanside, CA · CSLB #849183 · as of July 1, 2026
Active · clear
Mann's Heating And Air Con
Plymouth, CA · CSLB #885785 · as of July 1, 2026
Active · clear
Manny's Heating & Air Conditioning
Huntington Park, CA · CSLB #1003916 · as of July 1, 2026
Active · clear
Manny's Heating And Air INC
Tracy, CA · CSLB #968946 · 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.