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

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552 listingsHow results are ordered
41

Huang Wei Jia

South El Monte, CA · (626) 423-8063

CA-CSLB 1098165 · B C16 +1General contractorFire sprinkler contractorPlumber
License activechecked Oct 24, 2026
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42

Hunt's Fire Protection

Fullerton, CA · (714) 915-2074

CA-CSLB 553703 · C16 C34Fire sprinkler contractorGeneral engineering contractor
License activechecked Oct 24, 2026
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45

Jam Corp

Monrovia, CA · (626) 256-4400

CA-CSLB 791060 · B C7 +2General contractorElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
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46

Jb Fire Protection Inc

Anaheim, CA · (714) 578-0900

CA-CSLB 647282 · C16 C34 +1Fire sprinkler contractorGeneral engineering contractorPlumber
License activechecked Oct 24, 2026
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48

L2 Living Consultation

LA Mirada, CA · (213) 820-5084

CA-CSLB 859252 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
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50

Lee Simon N

Whittier, CA · (213) 219-3388

CA-CSLB 997548 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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52

Li James Chung-Min

LA Puente, CA · (626) 786-5565

CA-CSLB 457153 · B C16 +1General contractorFire sprinkler contractorPlumber
License activechecked Oct 24, 2026
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53

Lindley Fire

Anaheim, CA · (714) 535-5761

CA-CSLB 1037930 · A C10 +2General engineering contractorElectricianFire sprinkler contractor
License activechecked Oct 24, 2026
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57

Matthew Wilson

Orange, CA · (949) 294-5467

CA-CSLB 1073181 · C16Fire sprinkler contractor
License activechecked Oct 24, 2026
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58

Miguel Flores

Whittier, CA · (626) 665-1323

CA-CSLB 573926 · B C10 +2General contractorElectricianFire sprinkler contractor+1
License activechecked Oct 24, 2026
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