Command Service is your complete service company.  We plan, design, install, maintain, and service HVAC systems (both Residential and Commercial) throughout the Chicagoland area.  We are also trained to monitor the air quality in your home and advise on what corrective steps need to be followed to achieve a healthy indoor living environment.  We also service and repair all types and brands of appliances.  We’ve earned our reputation for excellence by providing consistent superior service and complete customer satisfaction.  Licensed, Bonded, and Insured, we stand behind our work.