The answer to 'lifespan of ductwork' is that properly installed and maintained ductwork can last 15-20 years or longer. Ductwork is a critical component of your HVAC system, responsible for distributing heated or cooled air throughout your home. With proper care and maintenance, the lifespan of your ductwork can be extended.
Factors that impact ductwork lifespan include the material it's made of (metal ducts tend to last longer than flexible), the quality of the installation, and how well it's maintained over time. Leaks, damage, and poor airflow can all reduce the lifespan of ductwork. Regular professional inspections and sealing any leaks or holes can help maximize the lifespan of your ductwork.