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

Cal Steam Company

Diamond Bar, CA · (213) 798-4693

CA-CSLB 674646 · C4 C20 +1PlumberHeating and air conditioning
License activechecked Oct 24, 2026
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06

Chien Ming Chu Chen

Diamond Bar, CA · (626) 705-7227

CA-CSLB 820540 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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15

Doctor Rooter Inc

West Covina, CA · (310) 709-4744

CA-CSLB 1051766 · A B +1General engineering contractorGeneral contractorPlumber
License activechecked Oct 24, 2026
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16

E L M Construction Co

LA Puente, CA · (626) 917-7247

CA-CSLB 901559 · A B +3General engineering contractorGeneral contractorConcrete contractor+2
License activechecked Oct 24, 2026
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17

Elite Pipe P

Diamond Bar, CA · (626) 392-3916

CA-CSLB 1144688 · C36Plumber
License activechecked Oct 24, 2026
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