Salt Lake City Commercial Rooftop HVAC Systems Mountainwest Service Experts Heating & Air Conditioning in Salt Lake City gives you choice in commercial rooftop HVAC products and services. Lennox® packaged rooftop commercial HVAC systems are are some of the most innovative products you can find today, including the new solar powered SunSource® System for Energence® rooftop HVAC systems. By combining industry-leading technology and efficiency with our expert services, you will receive dependable, sustainable systems built to deliver outstanding comfort and indoor air quality (IAQ) in your commercial spaces. In addition, three of our four rooftop systems – Energence, Strategos® and Landmark® - are ENERGY STAR® certified, which will help reduce your energy expenses, meaning you’ll have a lower total cost of ownership. Call 385-399-0280 to learn more.