Columbus Commercial Rooftop HVAC Systems Service Experts Heating & Air Conditioning in Columbus lets you choose from multiple commercial rooftop HVAC products and services. Lennox® packaged rooftop commercial HVAC systems are among the most innovative products you can find today, including the new solar powered SunSource® System for Energence® rooftop HVAC systems. Bringing industry-leading technology and efficiency with expert installation and service means you receive reliable, sustainable systems created to provide exceptional 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® qualified, which will help lower your energy expenses, leading to a lower total cost of ownership. Call 614-334-3192 to learn more.