NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors
Plumbers in Upland, CA
47 licensed plumbers · every license checked against the issuer's file
More cities in California
101Claremont, CA · (626) 485-2374
CA-CSLB 594858 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (951) 901-3957
CA-CSLB 1052306 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (909) 988-7272
CA-CSLB 915091 · C36 C42PlumberExcavation, grading and paving
License activechecked Oct 24, 2026
Claremont, CA · (714) 341-5325
CA-CSLB 1140911 · C36Plumber
License activechecked Oct 24, 2026
Montclair, CA · (866) 794-5129
CA-CSLB 1034739 · B C2 +5General contractorDrywall, plaster and insulationElectrician+2
License activechecked Oct 24, 2026
Rancho Cucamonga, CA · (909) 466-4600
CA-CSLB 853493 · B C20 +1General contractorHeating and air conditioningPlumber
License activechecked Oct 24, 2026
Rancho Cucamonga, CA · (909) 957-8470
CA-CSLB 1054041 · C36Plumber
License activechecked Oct 24, 2026
Alta Loma, CA · (909) 980-2491
CA-CSLB 867638 · C36Plumber
License activechecked Oct 24, 2026
Claremont, CA · (949) 308-5107
CA-CSLB 1157144 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (909) 559-0968
CA-CSLB 1109464 · C36Plumber
License activechecked Oct 24, 2026
Montclair, CA · (626) 806-5270
CA-CSLB 450717 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (800) 538-8426
CA-CSLB 1021363 · C36Plumber
License activechecked Oct 24, 2026
Alta Loma, CA · (909) 730-0329
CA-CSLB 781412 · C16 C36Fire sprinkler contractorPlumber
License activechecked Oct 24, 2026
Ontario, CA · (909) 758-1516
CA-CSLB 968088 · C36Plumber
License activechecked Oct 24, 2026
Rancho Cucamonga, CA · (909) 373-5014
CA-CSLB 1155568 · A B +3General engineering contractorGeneral contractorElectrician+2
License activechecked Oct 24, 2026
Ontario, CA · (909) 828-1512
CA-CSLB 1115619 · A C36 +1General engineering contractorPlumberSteel and welding contractor
License activechecked Oct 24, 2026
Rancho Cucamonga, CA · (909) 917-4321
CA-CSLB 1102363 · C36Plumber
License activechecked Oct 24, 2026
Alta Loma, CA · (909) 980-4109
CA-CSLB 686729 · B C20 +1General contractorHeating and air conditioningPlumber
License activechecked Oct 24, 2026
Ontario, CA · (909) 947-4601
CA-CSLB 419626 · A B +11General engineering contractorGeneral contractorPlumber+2
License activechecked Oct 24, 2026
Ontario, CA · (909) 969-6044
CA-CSLB 915935 · C36Plumber
License activechecked Oct 24, 2026