Mills Northwest Heating & Cooling is located in Chehalis, WA, and has over 35 years of experience serving Lewis County. Our experienced technicians maintain and service all major brands of heating and cooling products for your home or business. We provide retrofitting and remodel installation. Our products and services include heat pumps, gas and electric furnaces, commercial HVAC, humidification, HVAC remodeling, and free estimates are gladly given. Our goal is to provide a professional service at an affordable cost. We strive to meet all your needs with exceptional service.