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

Fire sprinkler contractors in Ontario, CA

12 licensed fire sprinkler contractors · every license checked against the issuer's file

More cities in California

San Francisco 96Los Angeles 60Glendale 46San Jose 35Bakersfield 30Sacramento 27Anaheim 24Burbank 23Oakland 22San Diego 22Fresno 21Santa Rosa 21Van Nuys 18Irvine 17Riverside 16Santa Ana 16
424 listingsHow results are ordered
43

Chien Scott

Walnut, CA · (626) 278-8933

CA-CSLB 1089712 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
CallDetails
44

Classic Handyman Services

Corona, CA · (951) 453-8945

CA-CSLB 1027514 · B C16 +2General contractorFire sprinkler contractorHeating and air conditioning+1
License activechecked Oct 24, 2026
CallDetails
48

E M F Fire Solutions

Yorba Linda, CA · (909) 464-8090

CA-CSLB 932854 · B C10 +1General contractorElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
49

F S S Companies Inc

Riverside, CA · (951) 258-5670

CA-CSLB 956588 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
CallDetails
54

Galvan Carlos X

Yorba Linda, CA · (714) 397-3816

CA-CSLB 654951 · B C10 +1General contractorElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
56

Hydrant Flow Inc

Yorba Linda, CA · (949) 403-1033

CA-CSLB 1138653 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
57

I S Firepro

Diamond Bar, CA · (626) 290-1378

CA-CSLB 740006 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
58

Impact Modular Builders

Yorba Linda, CA · (949) 885-6916

CA-CSLB 1099163 · B C16General contractorFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails