Since 1946, All Temp Heating & Air Conditioning, Inc. has been serving Chicago's northwest suburbs. By offering old fashioned, quality workmanship and dependable 24 hour service, we have grown along with the communities that we serve. We specialize in servicing and replacing high efficient heating and cooling systems for residential and light commercial applications and have become a leader in our marketplace by offering competitive pricing and exceptional customer service. Being a family owned company, we take pride in our work. Many of our customers have been with us for a number of years and most of our new customers come by referrals from family and friends. All Temp employs factory trained and certified service technicians who are continuously updated with the latest information and service methods. They are available 24 hours a day, 365 days a year for peace of mind and year-round comfort. We service all makes and models so our customers can be sure that their unit will be serviced in a professional and timely manner.