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
05

Myco Construction

Ontario, CA · (909) 456-9719

CA-CSLB 853581 · B C17 +4General contractorGlass and window contractorHeating and air conditioning+2
License activechecked Oct 24, 2026
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07

Northstar Phac Inc

Ontario, CA · (866) 744-6192

CA-CSLB 916254 · C20 C36Heating and air conditioningPlumber
License activechecked Oct 24, 2026
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08

Norton General Contractors

Ontario, CA · (909) 202-1000

CA-CSLB 909595 · B C10 +1General contractorElectricianHeating and air conditioning
License activechecked Oct 24, 2026
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10

Park Phillip

Ontario, CA · (213) 324-3639

CA-CSLB 1102884 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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11

Pisces Plumbing

Ontario, CA · (909) 552-3915

CA-CSLB 1133446 · C20 C36Heating and air conditioningPlumber
License activechecked Oct 24, 2026
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19

Yoo Ho Soo

Ontario, CA · (909) 967-3472

CA-CSLB 703553 · B C10 +2General contractorElectricianPlumber+1
License activechecked Oct 24, 2026
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20

4 S Air Inc

Rancho Cucamonga, CA · (909) 576-6586

CA-CSLB 931194 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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