Ductwork Replacement Cost Explained
Ductwork replacement cost depends on how much of the duct system is being replaced, total linear footage, duct material, attic or crawlspace access, layout complexity and whether the project requires redesign rather than simply replacing damaged sections.
Why do ductwork cost guides show such different numbers?
This is one of the project guides inside the HVAC Costs hub.
Angi's August 2026 verified-project data reports an average duct replacement cost around $1,250, with many projects between roughly $452 and $2,182 and installed replacement around $10 to $25 per linear foot.
HomeGuide's broader new-ductwork benchmark is higher at roughly $2,400 to $6,600. That broader scope can include substantial whole-home installation rather than a smaller replacement project.
Use the ductwork cost calculator for a preliminary project estimate and the duct size calculator for planning dimensions.
Published duct replacement and installation ranges.
Range based on Angi's current verified replacement projects.
Angi's current replacement benchmark per linear foot.
HomeGuide's broader whole-home new ductwork benchmark.
Duct length, layout, branch count, insulation, return design, material and accessibility all affect the actual project.
What can increase a duct replacement budget?
Total duct length
Larger homes and complex layouts generally require more duct material, fittings and installation labor.
Attic and crawlspace access
Tight or difficult access can increase labor substantially.
Flexible vs metal duct
Different materials have different material, fabrication and installation requirements.
Airflow redesign
Poorly performing ducts may need redesign rather than one-for-one replacement. Review HVAC air balancing when room airflow is uneven.
Supply and return sizing
Airflow problems can involve both supply and return paths. Use the HVAC CFM calculator as a planning tool.
Duct condition versus replacement need
Not every airflow problem requires full duct replacement. Start with the weak airflow guide if the cause has not been diagnosed.
Know when duct costs overlap with a larger HVAC project.
New AC installation
A home without suitable ducts can have a much larger total cooling-installation budget. Compare the AC installation cost guide.
AC replacement
Existing ductwork may still need modification when new equipment is installed. Review AC replacement costs in Texas.
Duct repair instead of replacement
Localized leakage or damage may be repairable without replacing the entire distribution system.
Compare all HVAC costs
Return to the HVAC Costs hub before combining ductwork with equipment costs.
Current sources behind the planning ranges.
Angi 2026 Duct Replacement
Angi reports a current national average around $1,250, with most projects between $452 and $2,182. Review Angi.
HomeGuide Ductwork Costs
HomeGuide publishes broader whole-home new ductwork pricing around $2,400 to $6,600. Review HomeGuide.
ENERGY STAR Duct Guidance
ENERGY STAR recommends evaluating duct leakage and airflow as part of HVAC quality installation. Review ENERGY STAR.
Texas HVAC Licensing
Texas regulates air-conditioning and refrigeration contracting through TDLR. Review TDLR.
Need help with damaged or poorly performing ductwork?
Request HVAC help and provide your Texas city or ZIP and whether the issue involves leaks, weak airflow, damaged ducts or a planned HVAC installation.
Common questions about replacing HVAC ducts.
How much does ductwork replacement cost?
Scope varies substantially. Angi's verified replacement projects commonly fall around $452 to $2,182, while larger new whole-home duct systems can cost several thousand dollars more.
How much does ductwork cost per linear foot?
Angi currently publishes about $10 to $25 per linear foot for replacement including removal and installation.
Why does whole-home ductwork cost more?
Whole-home projects use more materials, branches, fittings, insulation and labor and may involve design changes.
Does weak airflow mean I need new ducts?
No. Filters, blower problems, frozen coils, dampers and other restrictions can also cause weak airflow.
Does new AC installation include ductwork?
Not necessarily. Major duct installation or replacement may be a separate project.
Can a duct calculator provide an exact quote?
No. Calculators are planning tools and cannot account for every routing, access, material and design condition.
Return to the HVAC Costs hub for AC repair, installation, replacement, maintenance, compressor, refrigerant and heat-pump pricing.