NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors
Plumbers in Rancho Cucamonga, CA
67 licensed plumbers · every license checked against the issuer's file
More cities in California
221Upland, CA · (909) 824-4417
CA-CSLB 1082000 · C36Plumber
License activechecked Oct 24, 2026
Upland, CA · (909) 767-9652
CA-CSLB 1092145 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (310) 780-3093
CA-CSLB 788531 · C36Plumber
License activechecked Oct 24, 2026
Fontana, CA · (909) 600-4561
CA-CSLB 1097482 · C36Plumber
License activechecked Oct 24, 2026
Upland, CA · (909) 938-2039
CA-CSLB 1088019 · C36Plumber
License activechecked Oct 24, 2026
Claremont, CA · (949) 308-5107
CA-CSLB 1157144 · C36Plumber
License activechecked Oct 24, 2026
Fontana, CA · (909) 721-0085
CA-CSLB 639506 · A C34 +2General engineering contractorPlumberExcavation, grading and paving
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
Mira Loma, CA · (714) 412-1486
CA-CSLB 799577 · C34 C36General engineering contractorPlumber
License activechecked Oct 24, 2026
Fontana, CA · (909) 357-3553
CA-CSLB 927373 · C4 C20 +5PlumberHeating and air conditioningSteel and welding contractor+1
License activechecked Oct 24, 2026
Mira Loma, CA · (951) 681-4100
CA-CSLB 909530 · C36Plumber
License activechecked Oct 24, 2026
Fontana, CA · (909) 549-1725
CA-CSLB 945851 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (909) 840-6223
CA-CSLB 1151703 · C36Plumber
License activechecked Oct 24, 2026
Ontario, CA · (866) 391-0541
CA-CSLB 1066954 · B C36General contractorPlumber
License activechecked Oct 24, 2026
Mira Loma, CA · (909) 851-9336
CA-CSLB 972039 · A B +2General engineering contractorGeneral contractorPlumber+1
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
Upland, CA · (888) 900-1970
CA-CSLB 961138 · C36 D42PlumberSign contractor
License activechecked Oct 24, 2026