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
02

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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03

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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04

Monair Contractors

Diamond Bar, CA · (909) 967-0067

CA-CSLB 677543 · B C10 +1General contractorElectricianPlumber
License activechecked Oct 24, 2026
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05

Rooter Shooter

Diamond Bar, CA · (626) 708-0833

CA-CSLB 800418 · B C36 +1General contractorPlumberExcavation, grading and paving
License activechecked Oct 24, 2026
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06

Service Wizards

Diamond Bar, CA · (909) 248-5069

CA-CSLB 797071 · C20 C36 +1Heating and air conditioningPlumberExcavation, grading and paving
License activechecked Oct 24, 2026
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07

Thlc Corporation

Diamond Bar, CA · (909) 634-7858

CA-CSLB 1077041 · B C10 +3General contractorElectricianHeating and air conditioning+1
License activechecked Oct 24, 2026
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09

Zip Renovation & Air

Diamond Bar, CA · (714) 293-9827

CA-CSLB 762505 · B C10 +3General contractorElectricianFlooring contractor+2
License activechecked Oct 24, 2026
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16

Chien Scott

Walnut, CA · (626) 278-8933

CA-CSLB 1089712 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
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19

Expert HVAC Service Inc

Walnut, CA · (626) 537-5916

CA-CSLB 1115612 · B C20 +2General contractorHeating and air conditioningPlumber+1
License activechecked Oct 24, 2026
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20

Grand Water

Walnut, CA · (626) 991-2418

CA-CSLB 938228 · C55Plumber
License activechecked Oct 24, 2026
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