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
01

A C Plumbing

Covina, CA · (626) 967-3036

CA-CSLB 825130 · C36Plumber
License activechecked Oct 24, 2026
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12

Air Mechanical

City of Industry, CA · (626) 590-7806

CA-CSLB 881311 · B C4 +2General contractorPlumberHeating and air conditioning
License activechecked Oct 24, 2026
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15

Allyn Bruce Plumbing Inc

Pomona, CA · (909) 392-8403

CA-CSLB 245042 · C16 C20 +1Fire sprinkler contractorHeating and air conditioningPlumber
License activechecked Oct 24, 2026
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18

Am Best Construction

Brea, CA · (714) 323-3001

CA-CSLB 1027623 · B C10 +2General contractorElectricianHeating and air conditioning+1
License activechecked Oct 24, 2026
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19

Am Plumbing

Covina, CA · (626) 210-7831

CA-CSLB 1146344 · C36Plumber
License activechecked Oct 24, 2026
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