Since 1969 we have proudly served our customers in Cook and Lake County for all you Heating and Air Conditioning needs. We are an Authorized Carrier dealer.With more than 39 years in the heating and cooling business, Allied Air Conditioning & Heating is dedicated to providing the best possible solution for you and your family. You can count on us to provide you with a system and solution that fits your family's unique needs and since we've installed many systems in this area, we've earned a reputation for doing the job right the first time. Give us a call for all your HVAC needs!