We are certified dealers for the most respected brand names in the industry: Lennox, Mitsubishi, Honeywell, and Aprilaire. In addition, we service almost every other brand of furnace and air conditioner. Even if your heating and cooling system wasn’t originally installed by Kettle Moraine Heating and Air Conditioning, we’re happy to take care of it for you so that you’re comfortable, no matter how hot or cold it is outside.