Ultimate Air, Inc is a Wisconsin Heating, Cooling, Air Conditioning, Geothermal Heat Pump, and furnace repair, service, replacement and maintenance Company located in Kewaunee County; serving Brown County, Door County, Kewaunee County & Outagamie County. Ultimate Air, Inc employs only the best technicians for air conditioner repairs and furnace repairs as well as all air conditioner replacements, furnace replacements and boiler replacements in Luxemburg WI and the surrounding cities.