Average Ductwork Installation Cost
Installing new HVAC ductwork typically costs $2,000 to $7,000, depending on the size of the home, duct material, and installation complexity.
Homes that already have existing duct systems may only need partial duct replacement or modifications, which can reduce total installation costs.
Many homeowners installing new ductwork are doing so as part of a larger HVAC upgrade. In those cases, it can be helpful to review HVAC replacement cost or air conditioner installation cost when estimating the full project budget.
Ductwork Installation Cost by Home Size
The total cost of ductwork installation is closely related to the size of the home and the amount of ductwork required.
| Home Size | Typical Ductwork Installation Cost |
|---|---|
| 1,000 sq ft | $2,000 – $3,500 |
| 1,500 sq ft | $2,500 – $4,200 |
| 2,000 sq ft | $3,000 – $5,000 |
| 2,500 sq ft | $3,800 – $6,000 |
| 3,000 sq ft | $4,500 – $7,000 |
Larger homes require longer duct runs and additional vents, which increases both material and labor costs.
Ductwork Cost Per Linear Foot
Some contractors estimate ductwork installation using the total length of duct runs.
| Duct Type | Cost Per Linear Foot |
|---|---|
| Flexible duct | $10 – $25 |
| Sheet metal duct | $20 – $40 |
| Fiberglass duct board | $15 – $30 |
Rigid metal ducts tend to cost more but can provide better airflow and durability.
Factors That Affect Ductwork Installation Cost
Several factors can influence the total project price.
Home Layout
Multi-story homes or homes with complex layouts often require additional duct runs and vents.
Accessibility
Installing ductwork in crawl spaces or unfinished basements is usually cheaper than installing ducts in finished ceilings or walls.
Duct Material
Flexible ducts are usually cheaper but may not last as long as rigid metal duct systems.
HVAC System Size
Larger heating and cooling systems require larger ductwork to maintain proper airflow.
Homeowners upgrading their HVAC systems sometimes review HVAC installation cost per square foot to better understand total project costs.
When New Ductwork Is Needed
Installing new ductwork is often recommended when:
- installing HVAC in a home that previously used window units
- replacing an outdated or damaged duct system
- finishing a basement or home addition
- upgrading to a larger HVAC system
Properly sized ductwork helps ensure efficient heating and cooling throughout the home.
Ductwork Installation vs Duct Replacement
| Project Type | Typical Cost |
|---|---|
| Partial duct replacement | $1,500 – $4,000 |
| Full ductwork installation | $2,000 – $7,000 |
Partial replacement may involve repairing damaged sections or improving airflow in specific areas of the home.
FAQ
How much does ductwork installation cost?
Most ductwork installation projects cost $2,000 to $7,000, depending on home size and duct material.
Is installing new ductwork expensive?
Installing ductwork can add significant cost to HVAC installation, especially in homes that previously had no duct system.
How long does ductwork last?
Most HVAC duct systems last 15–25 years, depending on material quality and maintenance.