D & K Heating & Cooling provides fast, reliable and affordable service to residential & commercial furnace and air conditioners in the Milwaukee, Ozaukee, Washington, Racine, Waukesha, & Walworth Counties. We pride ourselves in our unparalleled craftsmanship and attention to detail to meet all your heating and air conditioning needs while maintaining an unrivaled level of professionalism. We want to make you as comfortable as possible throughout any season or any condition and ensure your furnace, air conditioner and indoor air quality are at optimal levels to increase your comfort.