State Mechanical Services


Contractors- Commercial

About Us

State Mechanical Services is a premier mechanical contractor in Northern Illinois serving the Chicagoland area, Southeastern Wisconsin, and Northwest Indiana. We specialize in mechanical construction and the service and maintenance of commercial and industrial heating, ventilation, and air conditioning (HVAC) systems. With over 100 years of combined experience, our team of industry professionals can help deliver your next project on time and within budget. With today’s focus on “Green Building” construction standards, State Mechanical Services has the ability to assist you on your next LEED® certified project.

State Mechanical Services provides our customers with:

Project budgeting from conception to completion

Plan and spec projects that are priced competitively

Design / Build projects that offer the best solutions for your budget

Value assisted engineering for plan and spec projects which are over budget

Assistance achieving certification points on LEED® projects

Preventative maintenance agreements that reduce owning and operating costs

Proactive equipment replacement solutions for existing facilities

24 hour service capabilities

At State Mechanical Services our mission is simple as we strive to provide excellence in customer service and continue to be the “Benchmark for Mechanical Contractors”.


Water Cooled VRF install
Mechanical Room Install
Crane Lift