Air distribution systems come in many shapes and sizes, each with their own benefits and maintenance protocols. Proper installation is imperative, but once initial setup is complete, that doesn’t mean the contractor’s job is done. Although ductwork doesn’t require quite as much maintenance as other HVAC equipment does, there are steps to be taken to ensure its longevity, safety, and efficient operation. Some of these steps may even have the possibility to yield new revenue streams for HVAC contractors.