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

Lfr Fire LLC

Corona, CA · (562) 239-9898

CA-CSLB 1159599 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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46

N P Mechanical Inc

Corona, CA · (951) 667-4220

CA-CSLB 890694 · B C16 +2General contractorFire sprinkler contractorHeating and air conditioning+1
License activechecked Oct 24, 2026
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47

Nebshau Inc

Covina, CA · (626) 332-7066

CA-CSLB 1064967 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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51

Rivard Timothy a

Riverside, CA · (951) 360-8596

CA-CSLB 231048 · A C16 +3General engineering contractorFire sprinkler contractorExcavation, grading and paving+1
License activechecked Oct 24, 2026
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55

Smoke Busters Inc

Rialto, CA · (909) 238-3579

CA-CSLB 969343 · C10 C16ElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
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56

Starlux

Riverside, CA · (909) 285-7477

CA-CSLB 1145163 · C16 D06 +1Fire sprinkler contractorConcrete contractorSpecialty contractor
License activechecked Oct 24, 2026
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