The answer to 'how long will ductwork last' is that properly installed and maintained ductwork can last 15-25 years on average. Ductwork is an essential component of your HVAC system, responsible for distributing heated or cooled air throughout your home. The lifespan of ductwork can vary depending on factors such as the materials used, the quality of installation, and the level of maintenance.
Well-constructed metal ductwork made from galvanized steel or aluminum typically has the longest lifespan, often lasting 20-25 years or more with proper care. Flexible ductwork, on the other hand, may only last 10-15 years before needing replacement. Regular inspections and cleaning can help extend the life of your ductwork by preventing buildup of dust, debris, and mold that can compromise the system's efficiency and integrity.