Global Heating & Air is a heating and air conditioning company which provides air temperature control and air quality services for residential and commercial customers. This company serves the western suburbs of Chicago, including Glendale Heights, Glen Ellyn, Wheaton, Oakbrook Terrace, Oak Brook, Hinsdale, Westmont, Downers Grove, Willowbrook, Elmhurst, Addison, Bloomingdale, Bensenville,...