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

Plumbers in Altadena, CA

20 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
05

Crosby Construction

Altadena, CA · (626) 765-9672

CA-CSLB 994490 · A B +2General engineering contractorGeneral contractorPlumber
License activechecked Oct 19, 2026
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09

H & H Mechanical Inc

Altadena, CA · (626) 791-0968

CA-CSLB 644029 · C4 C20PlumberHeating and air conditioning
License activechecked Oct 19, 2026
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18

Simco Mechanical Inc

Altadena, CA · (818) 957-4994

CA-CSLB 974288 · B C20 +1General contractorHeating and air conditioningPlumber
License activechecked Oct 19, 2026
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19

U S Plumbing

Altadena, CA · (626) 354-1066

CA-CSLB 837455 · C36Plumber
License activechecked Oct 19, 2026
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