how much does ductwork cost
1 Replacing aging, leaking or inadequate ductwork typically costs about $35-$55 a linear foot for labor and materials, or $1,000-$5,000 or more for a single-family home, depending on the length and type of ducts used (sheet metal, fiberduct or round flexible ductwork) and local rates. If the home's layout makes installation particularly challenging, replacing existing ductwork or adding it to a house that never had ducts can cost $5,000-$15,000 or more.