Contact Us
Office: 847-485-7718
Fax 847-485-7726
david@ohsconstruction.com
Office Hour
Mon – Fri : 9 AM to 5 PM
Sat – Sun : *Closed*
Field Staffs
Field Manager
Anthony Choi 224-415-0608
anthony@ohsconstruction.com
Project Manager
Jin Lee 773-574-9752
jinlee@ohsconstruction.com
Kathy Oh 224-388-8986
kathy@ohsconstruction.com
Mina Min 847-559-1200
mina@ohsconstruction.com
Office Staff
David On 847-418-6912
david@ohsconstruction.com
Lucy Oh 847-485-7718
lucy@ohsconstruction.com
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