How much does ductwork replacement cost?
Old, leaky ducts waste conditioned air. Replacing ductwork is priced by the number of runs and how accessible the ducts are (attic and crawl-space work costs more).
| Typical range | $1,400 – $7,000 |
| Most common | $3,500 |
| Priced | average home |
| DIY-friendly? | No — best left to a licensed pro |
What changes the price of ductwork replacement
- Number of duct runs and registers
- Accessibility (attic/crawl space)
- Sealing and insulating new ducts
- Home size and layout
Estimate your cost
Adjust the quality and scope, or compare with other projects.
Full typical range for this project. Adjust the quality/scope for a tighter estimate. The only way to know your real price is to get quotes from local contractors.
- ›Number of duct runs and registers
- ›Accessibility (attic/crawl space)
- ›Sealing and insulating new ducts
- ›Home size and layout
National ballpark ranges for the US. Not a quote — actual prices vary by region, home and contractor.
Ductwork replacement cost — frequently asked questions
How much does it cost to replace ductwork?
Replacing ductwork in an average home runs about $1,400–$7,000, near $3,500 typical, depending on the number of runs and access.
Related project costs
This is general US cost information, not a quote. Actual prices depend on your region, home, materials and contractor — always get quotes from licensed local pros before you commit.