The answer to 'ductwork installation cost' is that the cost can vary widely depending on several factors. Ductwork installation is a complex job that requires professional expertise, and the final price will depend on the size of your home, the complexity of the ductwork layout, the materials used, and your location.
Generally, homeowners can expect to pay anywhere from a few thousand dollars to tens of thousands for a full ductwork installation. Smaller jobs like replacing a section of ductwork may cost a few hundred to a few thousand dollars. The best way to get an accurate estimate is to have a licensed HVAC contractor assess your home and provide a quote.