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

Plumbers in Diamond Bar, CA

29 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

Fuel Pros Inc

Chino, CA · (909) 614-1379

CA-CSLB 269354 · A B +2General engineering contractorGeneral contractorPlumber+1
License activechecked Oct 24, 2026
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05

Fwc LLC

Placentia, CA · (714) 471-7924

CA-CSLB 1070340 · B C10 +2General contractorElectricianFence contractor+1
License activechecked Oct 24, 2026
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07

G K Plumbing

LA Habra, CA · (213) 321-3703

CA-CSLB 862516 · C36Plumber
License activechecked Oct 24, 2026
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08

G & S Construction

Glendora, CA · (626) 536-2959

CA-CSLB 357542 · B C27 +4General contractorLandscaperMasonry contractor+2
License activechecked Oct 24, 2026
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11

Galaz Repipe

Rowland Heights, CA · (323) 715-9535

CA-CSLB 1156431 · C36Plumber
License activechecked Oct 24, 2026
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12

Garcia Manuel Serna

Chino, CA · (626) 485-1609

CA-CSLB 771071 · C20 C36Heating and air conditioningPlumber
License activechecked Oct 24, 2026
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13

Gener Pablito Regis

LA Puente, CA · (626) 716-1701

CA-CSLB 531810 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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