The answer to 'how often to replace ductwork' is that ductwork should typically be replaced every 10-15 years. Ductwork is an essential component of your HVAC system, responsible for distributing heated or cooled air throughout your home. Over time, ducts can become damaged, develop leaks, or accumulate debris that reduces airflow efficiency.
Regular inspections by a professional HVAC technician can help identify when ductwork needs to be replaced. Signs that it's time to replace ductwork include visible damage, excessive dust or debris, and reduced airflow or uneven temperatures in your home.