Charleston Commercial Rooftop HVAC Systems Pardee Service Experts Heating & Air Conditioning in Charleston lets you choose from multiple commercial rooftop HVAC products and services. For example, Lennox® packaged rooftop commercial HVAC systems are top the list of the most innovative products on the market 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 reliable, 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® qualified, which will help decrease your energy expenses, meaning you’ll have a lower total cost of ownership. Call 843-410-6103 to learn more.