Airmaker Inc Provides Mechanical Engineering – Heating – Air Conditioning – Ventilation – Refrigeration throughout the Chicagoland Suburbs. (630) 933-0033 We are proud to be celebrating 20 years of service in Carol Stream and the surrounding area. You can depend on Airmaker Inc for all your heating, air conditioning, ventilation and refrigeration repair and installation needs. Our highly trained technicians are available 24/7 and are always able to provide you with a comprehensive HVAC system evaluation.