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 1–20How results are ordered
01

A a HVAC Inc

Ontario, CA · (909) 969-0044

CA-CSLB 1057513 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
02

A G Heating & Air

Ontario, CA · (714) 272-3173

CA-CSLB 1132532 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
03

Aboubakare Ansary

Ontario, CA · (714) 809-6827

CA-CSLB 1042235 · B C20 +1General contractorHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
05

Air Bee HVAC

Ontario, CA · (626) 624-3030

CA-CSLB 1158451 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
07

Air Control Systems Inc

Ontario, CA · (909) 786-4230

CA-CSLB 639003 · C2 C20Drywall, plaster and insulationHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
11

American Stainless

Ontario, CA · (909) 257-5747

CA-CSLB 1085845 · C43 D12 +2Heating and air conditioningSpecialty contractorSteel and welding contractor
License activechecked Oct 24, 2026
CallDetails
12

Amj Mechanical

Ontario, CA · (909) 678-7727

CA-CSLB 1031031 · C10 C20 +1ElectricianHeating and air conditioningSwimming pool contractor
License activechecked Oct 24, 2026
CallDetails
18

Ds HVAC Inc

Ontario, CA · (909) 235-8838

CA-CSLB 1132699 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
20

Effina

Ontario, CA · (909) 732-2373

CA-CSLB 1150901 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails