Commercial HVAC Installation Service near W Lincoln Ave. We were contacted by a commercial client in need of our assistance installing a new HVAC system for their building. We discussed options with the client and then arrived at the determined date to install the new HVAC system. We carefully installed the new Lennox rooftop HVAC unit in accordance with the manufacturer's specifications and installed the ducting in the business. After the installation, we tested the new system for quality assurance and instructed the client on how to operate it. The client was grateful to have a reliable HVAC system for their business before the summer gets here!