We are a privately held company in Chicago, IL.

When your HVAC system isn't working properly, don't panic - just turn to AAU Mechanical for professional HVAC services. Our local HVAC contractor works with homeowners and business owners in Chicago, IL. We can repair all kinds of furnaces, air conditioners and heaters. You can also have us fix parts like your heat pumps and air ducts. We're even available 24/7 for emergency calls. Contact us to learn more about our professional HVAC services.