NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors

Heating and air conditioning in Ontario, CA

59 licensed heating and air conditioning · every license checked against the issuer's file

More cities in California

San Jose 296Los Angeles 292Sacramento 265San Diego 256Riverside 225Fresno 181Bakersfield 179Anaheim 158Glendale 128Corona 117El Cajon 117San Francisco 116Escondido 100Modesto 96Stockton 96Santa Rosa 92
Listings 101–120How results are ordered
101

Acs Builders

Chino, CA · (909) 270-2111

CA-CSLB 1083415 · B C10 +2General contractorElectricianHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
102

Active Air

Chino Hills, CA · (909) 597-5539

CA-CSLB 943433 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
107

Afterair Inc

Upland, CA · (310) 963-7053

CA-CSLB 1129087 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
109

Air Dyne Mechanical

Rancho Cucamonga, CA · (909) 948-1177

CA-CSLB 645326 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
114

Air Supply

Upland, CA · (909) 980-5001

CA-CSLB 1082967 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
115

Air There

Rancho Cucamonga, CA · (951) 990-3224

CA-CSLB 942851 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
119

Airmax Pros Inc

Chino, CA · (909) 600-9901

CA-CSLB 1115660 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails