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
02

Fire Service Corp

Anaheim, CA · (800) 767-3473

CA-CSLB 952180 · C10 C16 +1ElectricianFire sprinkler contractorPlumber
License activechecked Oct 24, 2026
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05

Fischer Inc

San Bernardino, CA · (909) 881-2910

CA-CSLB 853357 · A B +2General engineering contractorGeneral contractorFire sprinkler contractor+1
License activechecked Oct 24, 2026
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06

Fischer Plumbing

San Bernardino, CA · (909) 881-2910

CA-CSLB 452949 · A B +2General engineering contractorGeneral contractorFire sprinkler contractor+1
License activechecked Oct 24, 2026
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17

Jr Fire Sprinklers

San Bernardino, CA · (909) 770-2078

CA-CSLB 1077811 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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19

Liang Weisong

West Covina, CA · (626) 708-1550

CA-CSLB 1040694 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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20

Matthew Wilson

Orange, CA · (949) 294-5467

CA-CSLB 1073181 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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