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
06

Good Temperature

Ontario, CA · (909) 539-8269

CA-CSLB 916498 · C38Heating and air conditioning
License activechecked Oct 24, 2026
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07

Hao Julan

Ontario, CA · (626) 715-0532

CA-CSLB 1083815 · B C20General contractorHeating and air conditioning
License activechecked Oct 24, 2026
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10

Jang Jason

Ontario, CA · (909) 647-5522

CA-CSLB 1035039 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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13

Jn Construction Inc

Ontario, CA · (323) 378-0109

CA-CSLB 1001396 · A B +4General engineering contractorGeneral contractorElectrician+2
License activechecked Oct 24, 2026
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16

Kao Brian Yawching

Ontario, CA · (626) 347-3434

CA-CSLB 897876 · B C10 +2General contractorElectricianHeating and air conditioning+1
License activechecked Oct 24, 2026
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18

Le Dao

Ontario, CA · (909) 917-8030

CA-CSLB 864673 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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19

Li Chun

Ontario, CA · (626) 328-6011

CA-CSLB 1054025 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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