Albany Commercial Rooftop HVAC Systems D.A. Bennett Service Experts Heating & Air Conditioning in Albany has a variety of commercial rooftop HVAC products and services. Lennox® packaged rooftop commercial HVAC systems are are some of the most innovative products being sold today, including the new solar powered SunSource® System for Energence® rooftop HVAC systems. Our industry-leading technology combined with our expert installation and services means you’ll receive dependable, sustainable systems built to provide superior comfort and indoor air quality (IAQ) in your commercial offices. Additionally, three of our four rooftop systems – Energence, Strategos® and Landmark® - are ENERGY STAR® certified, which will help decrease your energy expenses, leading to a lower total cost of ownership. Call 518-205-3324 to learn more.