Alexian Heating Air Conditioning and Refrigeration, Inc. serves residents throughout Northbrook, Illinois and its surrounding communities with complete HVAC services ranging from furnace and boiler repair to air conditioning, humidifiers, sheet metal and carbon monoxide testing. Established in 1996, our licensed and insured contractors have been serving the community with 16 years of quality service. We offer same day service for all of your heating and cooling needs and all of our work is guaranteed. We are an authorized dealer for American Standard products and we carry units from fine retailers including Lennox, York, Trane, Briant, Rudd, Rheem and Heil. Call now to see how we can help you stay warm this winter! We offer FREE estimates on new installations and replacements! Senior citi