Quality Control Systems Inc. Mechanical Contractors, has been providing mechanical contracting services throughout the Chicagoland area since 1994.

Operating as a union contractor, we focus primarily on commercial and institutional mechanical construction. At every level of the company, our staff is dedicated to doing the job right; a project is not complete until we have satisfied our clients expectations. We offer value for our clients by providing innovative mechanical solutions and superior project planning. Our clients encompass a wide range of industries including: commercial, educational, governmental, healthcare, industrial and othe...

Operating as a union contractor, we focus primarily on commercial and institutional mechanical construction. At every level of the company, our staff is dedicated to doing the job right; a project is not complete until we have satisfied our clients expectations. We offer value for our clients by providing innovative mechanical solutions and superior project planning. Our clients encompass a wide range of industries including: commercial, educational, governmental, healthcare, industrial and other highly specialized facilities. Our diverse experience allows us to perform basic piping repairs to multifaceted complex HVAC projects.