Complete ac tune up on Comfortmaker air conditioner located in Winnetka, illinois. Add refrigerant to ac system. North Shore Heating and Cooling, located near you in Glenview Illinois, are experts in the ac service and ac repair as well as air conditioner replacement. Call today for air conditioner service or furnace service, free estimate on air conditioner replacement of furnace replacement at 847-729-1040 or visit our website at www.northshoreheatingandcooling.com