http://www.heatstar.net Air Conditioning North Brook Call 847-385-3144 For Contractor. If you are looking for Heating and Air Conditioning North Brook, Heating Contractor North Brook, HVAC North Brook, Boiler North Brook, Furnace North Brook, Heating Repair North Brook, Air Conditioning North Brook, Heating and Cooling North Brook or HVAC Contractors North Brook you have come to the right place. Heatstar Heating & Air Conditioning is Chicagoland's Premier Heating and Cooling Company. Quality professional service you can trust