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

Plumbers in Walnut, CA

21 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 1–20How results are ordered
04

Liao Hsueh Yu

Diamond Bar, CA · (909) 396-9686

CA-CSLB 769733 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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05

Lin Sun

West Covina, CA · (626) 213-9739

CA-CSLB 931259 · C36Plumber
License activechecked Oct 24, 2026
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08

Mirae Construction Co

Diamond Bar, CA · (714) 615-2104

CA-CSLB 876472 · A B +1General engineering contractorGeneral contractorPlumber
License activechecked Oct 24, 2026
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09

Monair Contractors

Diamond Bar, CA · (909) 967-0067

CA-CSLB 677543 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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14

Onnuri Builders Inc

Rowland Heights, CA · (213) 364-7024

CA-CSLB 1159004 · B C36General contractorPlumber
License activechecked Oct 24, 2026
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17

Papa Joe's and Son

Pomona, CA · (800) 300-6818

CA-CSLB 709485 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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