Quest Design Group (QDG) is known for Engineering Connections. The QDG team provides professional mechanical, electrical, plumbing, and fire protection system design services for the building construction industry. With offices in Oak Brook, Nashville, and Sarasota, QDG works with architects and contractors in the Chicagoland area, throughout Middle Tennessee, on the Suncoast, and is licensed to work on projects in more than 20 states from coast to coast. Michael Janis opened the Chicago office in 2003 and quickly built a reputation for delivering state-of-the-art engineering services on a timely basis and at a good value for clients. The foundation of the company is people – engineers who are committed to their community and their profession. Lifelong learners seeking to expand their knowledge and experience, particularly as it pertains to all phases of construction project work. With a combined team of 25 people and experience with more than 5,000 projects QDG is here to serve you.