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
21

Gardner Jack Jr

Norco, CA · (951) 212-9408

CA-CSLB 470911 · A B +2General engineering contractorGeneral contractorFire sprinkler contractor+1
License activechecked Oct 24, 2026
CallDetails
29

Jed August

Rancho Cucamonga, CA · (323) 397-0828

CA-CSLB 536787 · B C10 +5General contractorElectricianFire sprinkler contractor+2
License activechecked Oct 24, 2026
CallDetails
33

M D I Spray Equipment

Pomona, CA · (626) 705-5797

CA-CSLB 499372 · B C16General contractorFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
36

Mueller Construction

Alta Loma, CA · (909) 223-7291

CA-CSLB 430230 · B C10 +1General contractorElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
38

Phoenix Fire

Eastvale, CA · (714) 746-3649

CA-CSLB 933040 · C10 C16ElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails