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

Plumbers in Ontario, CA

49 licensed plumbers · every license checked against the issuer's file

More cities in California

Los Angeles 651San Diego 494San Francisco 437San Jose 384Sacramento 242Riverside 208Bakersfield 191Anaheim 181Santa Rosa 157Glendale 156Long Beach 145Fresno 143Van Nuys 134El Cajon 133Escondido 128Oakland 128
Listings 21–40How results are ordered
23

4Je Plumbing

Fontana, CA · (909) 638-9446

CA-CSLB 1025084 · C36Plumber
License activechecked Oct 24, 2026
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24

626 Plumbing Inc

Chino Hills, CA · (626) 650-3003

CA-CSLB 1045621 · B C36General contractorPlumber
License activechecked Oct 24, 2026
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26

A C R Technologies

Rancho Cucamonga, CA · (951) 757-5483

CA-CSLB 811487 · C10 C20 +1ElectricianHeating and air conditioningPlumber
License activechecked Oct 24, 2026
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