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

Fire sprinkler contractors in Diamond Bar, CA

5 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
552 listingsHow results are ordered
21

Tyler Stevens

Fullerton, CA · (714) 870-7117

CA-CSLB 671757 · B C16 +1General contractorFire sprinkler contractorPlumber
License activechecked Oct 24, 2026
CallDetails
26

Valley Plumbing

Covina, CA · (661) 809-2903

CA-CSLB 408122 · C4 C16 +1PlumberFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
30

Yun Qi Construction

Rowland Heights, CA · (626) 780-2806

CA-CSLB 856012 · B C16General contractorFire sprinkler contractor
License activechecked Oct 24, 2026
CallDetails
38

Ateck Construction Inc

Chino, CA · (909) 393-9798

CA-CSLB 845160 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
CallDetails
40

Axis Mechanical Services

Anaheim, CA · (714) 398-8322

CA-CSLB 924887 · B C16 +2General contractorFire sprinkler contractorPlumber+1
License activechecked Oct 24, 2026
CallDetails