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 5,461–5,520 of 8,995 contractors

MBZ HVAC
Sylmar, CA · CSLB #1109109 · as of July 2, 2026
Active · clear
MC Air
Indio, CA · CSLB #913427 · as of July 2, 2026
Active · clear
M C A Mechanical
Minden, CA · CSLB #829325 · as of July 2, 2026
Active · clear
MC Closkey Heating Air Cond & Refrigeration
Paso Robles, CA · CSLB #389370 · as of July 2, 2026
Active · clear
Mcclure Mechanical Systems INC
El Cajon, CA · CSLB #995204 · as of July 2, 2026
Active · clear
Mccourt & Sons INC
Temecula, CA · CSLB #1054861 · as of July 2, 2026
Active · clear
Mccue Mechanical
Morongo Valley, CA · CSLB #1062793 · as of July 2, 2026
Active · clear
TY A MC Dougall
Lake Forest, CA · CSLB #929299 · as of July 2, 2026
Active · clear
Mcgee Refrigeration INC
Visalia, CA · CSLB #613002 · as of July 2, 2026
Active · clear
MC George Heating & Air Conditioning
Santa Clarita, CA · CSLB #861744 · as of July 2, 2026
Active · clear
Mcgrady & Sons Heating And Cooling INC
Mariposa, CA · CSLB #1079657 · as of July 2, 2026
Active · clear
MC Hale's Heating And Air Conditioning INC
Anderson, CA · CSLB #765419 · as of July 2, 2026
Active · clear
M C Heating & Air Conditioning
Riverside, CA · CSLB #847434 · as of July 2, 2026
Active · clear
MC Heating & Air Conditioning INC
Ceres, CA · CSLB #1140257 · as of July 2, 2026
Active · clear
Mcintyre Heating And Air
Weed, CA · CSLB #1152439 · as of July 2, 2026
Active · clear
Mcisaac Heating
Petaluma, CA · CSLB #1071345 · as of July 2, 2026
Active · clear
MC Leod's Air Conditioning & Heating
Indio, CA · CSLB #656811 · as of July 2, 2026
Active · clear
M C L Heating & Air Conditioning INC
San Francisco, CA · CSLB #989383 · as of July 2, 2026
Active · clear
Mcmaster Heating & Air Conditioning INC
Irvine, CA · CSLB #726607 · as of July 2, 2026
Active · clear
Mcmaster Mechanical
Diamond Bar, CA · CSLB #879152 · as of July 2, 2026
Active · clear
M C Mechanical
Salinas, CA · CSLB #932137 · as of July 2, 2026
Active · clear
MC Mechanicals
Daly City, CA · CSLB #929991 · as of July 2, 2026
Active · clear
Mcmillan Water Treatment INC
Fontana, CA · CSLB #844792 · as of July 2, 2026
Active · clear
MCM Mechanical
Sonoma, CA · CSLB #1106825 · as of July 2, 2026
Active · clear
Mcrae Heating & Air
Temecula, CA · CSLB #1108858 · as of July 2, 2026
Active · clear
M C R Services INC
Bishop, CA · CSLB #914968 · as of July 2, 2026
Active · clear
MCX Air Systems
Signal Hill, CA · CSLB #1147992 · as of July 2, 2026
Active · clear
MDB Same Day HVAC INC
Antioch, CA · CSLB #1057681 · as of July 2, 2026
Active · clear
M D Heating & Air
Rocklin, CA · CSLB #921800 · as of July 2, 2026
Active · clear
MDP Heating & Cooling INC
San Jose, CA · CSLB #1103720 · as of July 2, 2026
Active · clear
M D Smith Heating & Air Conditioning INC
Modesto, CA · CSLB #954959 · as of July 2, 2026
Active · clear
Meadows Mechanical
Gardena, CA · CSLB #383620 · as of July 2, 2026
Active · clear
Mears Heating And Air
Acampo, CA · CSLB #1089672 · as of July 2, 2026
Active · clear
Mechanical Air Climate Control INC
Hesperia, CA · CSLB #1054287 · as of July 2, 2026
Active · clear
Mechanical Air Conditioning Services
Rialto, CA · CSLB #1123072 · as of July 2, 2026
Active · clear
Mechanical Air Control INC
Riverside, CA · CSLB #808525 · as of July 2, 2026
Active · clear
Mechanical Air LLC
Fresno, CA · CSLB #969564 · as of July 2, 2026
Active · clear
Mechanical Control
Ontario, CA · CSLB #1019123 · as of July 2, 2026
Active · clear
Mechanical Cooling Solutions LLC
Chula Vista, CA · CSLB #1097971 · as of July 2, 2026
Active · clear
Mechanical HVAC Solutions
Oceanside, CA · CSLB #1034572 · as of July 2, 2026
Active · clear
Mechanical Innovations INC
Cerritos, CA · CSLB #984952 · as of July 2, 2026
Active · clear
Mechanical Mciver
Riverside, CA · CSLB #1143965 · as of July 2, 2026
Active · clear
Mechanical Pros Heating And Air Conditioning INC
Temecula, CA · CSLB #812400 · as of July 2, 2026
Active · clear
Mechanical Solutions Company INC
Stockton, CA · CSLB #1124778 · as of July 2, 2026
Active · clear
Mechanical Specialties Solutions LLC
Paramount, CA · CSLB #1068795 · as of July 2, 2026
Active · clear
Mechanical System Contractors INC
San Diego, CA · CSLB #878844 · as of July 2, 2026
Active · clear
Mechanical Technologies INC
La Habra, CA · CSLB #852317 · as of July 2, 2026
Active · clear
Mechanical Technology Systems INC
Orange, CA · CSLB #828672 · as of July 2, 2026
Active · clear
Mechanical Ventilation Systems
Banning, CA · CSLB #578852 · as of July 2, 2026
Active · clear
Mechmaster HVAC
Glendale, CA · CSLB #1111253 · as of July 2, 2026
Active · clear
Mech One INC
Escondido, CA · CSLB #934023 · as of July 2, 2026
Active · clear
Mechpros Heating And Air Conditioning
Concord, CA · CSLB #996940 · as of July 2, 2026
Active · clear
Medel Air Pro Heating & Air
Lathrop, CA · CSLB #1025268 · as of July 2, 2026
Active · clear
Media City Ac INC
Burbank, CA · CSLB #1142647 · as of July 2, 2026
Active · clear
Medina Heating Plumbing And Cooling
Tracy, CA · CSLB #929091 · as of July 2, 2026
Active · clear
Medrara HVAC
Diamond Bar, CA · CSLB #1042958 · as of July 2, 2026
Active · clear
Mega Cooling
Glendale, CA · CSLB #1078262 · as of July 2, 2026
Active · clear
M Meier & Sons Heating & Air Conditioning INC
Santa Rosa, CA · CSLB #610649 · as of July 2, 2026
Active · clear
Carlos Alexander Mejia
Hacienda Heights, CA · CSLB #1095036 · as of July 2, 2026
Active · clear
Mejia Mechanical LLC
Dos Palos, CA · CSLB #1141630 · 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.