Dublin Commercial Rooftop HVAC Systems Service Experts Heating & Air Conditioning in Dublin gives you choice in commercial rooftop HVAC products and services. For instance, 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. By combining industry-leading technology and efficiency with our expert services, you will receive long-lasting, sustainable systems designed to bring exceptional comfort and indoor air quality (IAQ) in your commercial buildings. Further, three of our four units – Energence, Strategos® and Landmark® - are ENERGY STAR® qualified, which will help lower your energy expenses, leading to a lower total cost of ownership. Call 925-364-5427 to learn more.