Innovation. Quality. Integrity.

As a full service commercial and industrial mechanical contractor, State Mechanical Services specializes in design/build and design/assist HVAC solutions, as well as custom preventive maintenance programs that extend the life of mechanical equipment and maximize energy savings. While we’re proud of the work we perform every day, it is our commitment to outstanding service that sets us apart and helps us build lasting client relationships.

With more than 100 years of combined experience and valuable mechanical engineering expertise, our licensed professional engineers and LEED-certified designers can help you deliver your next project on time and within budget. That’s why building owners, property managers, general contractors and developers in Chicagoland, Southeast Wisconsin and Northwest Indiana rely on State Mechanical Services.