Ductwork Replacement Cost Calculator
Calculate the cost to replace old, damaged, or inefficient ductwork.
Ductwork replacement typically costs between $1,500 and $6,000. Factors include home size, number of vents, and crawling accessibility.
Calculate Your Estimate
Project Location
Choose which state the project is located.
Project Details
Define the scope of the ductwork project.
Duct Material:
Additional Services:
Why Use Our Ductwork Cost Calculator?
Ductwork pricing varies wildly based on accessibility (attic vs crawlspace) and material quality. Our calculator helps you estimate the investment needed to improve your home's airflow and energy efficiency. By factoring in the number of vents and home size, we provide a localized baseline for your HVAC upgrade budget.
Manually Calculating Ductwork Replacement Costs
To estimate manually:
- Count Vents: Walk through each room and count supply and return registers.
- Measure Runs: Estimate linear feet of ductwork (usually matches home logic, e.g. 1 linear ft per 2 sq ft of floor).
- Check Access: Crawlspaces or attics with tight access increase labor costs significantly.
- Material Type: Rigid metal lasts longer but costs 2-3x more than flexible ducts.
Manual Calculation Formula:
Est. Cost = (Linear_Feet × $12) + (Vents × $250_per_hookup)
*Example: 200ft run (200 × $12 = $2,400) + 10 vents (10 × $250 = $2,500) = ~$4,900 Total.
Frequently Asked Questions
How does the Ductwork Calculator determine cost?
The calculator estimates replacement costs based on linear feet of ducting, the number of vents/registers, and accessibility factors for the home's specific zip code.
What is the typical cost for ductwork replacement?
Complete replacement projects typically range from $1,500 to $6,000. Final pricing depends on total home square footage, system complexity, and crawler space accessibility.
What is the expected lifespan of ductwork?
Flexible ductwork generally lasts 15-20 years, whereas rigid metal ducting can endure for 25-50 years with proper maintenance.
What indicators suggest ducts need replacement?
Common signs of failure include uneven temperature distribution, unexplained increases in energy bills, visible rust or crushing, and persistent moldy odors.
Does the estimate include furnace replacement?
No, this calculation refers strictly to the ducting system. HVAC units (furnace and A/C) are separate components with distinct costs.
How do flexible and rigid ducts differ?
Flexible ducts are more cost-effective and easier to install in tight spaces. Rigid metal offers superior airflow efficiency and long-term durability but comes at a higher price point.
Is sealing part of the installation process?
Yes, professional installation includes sealing joints with mastic or foil tape to prevent air leakage and ensure energy efficiency.
What is the duration of the installation process?
A typical whole-home ductwork replacement is usually completed within 1 to 3 days, depending on the crew size and home layout.
Will new ducts improve indoor air quality?
Replacing compromised ducts often reduces the circulation of dust, allergens, and pollutants, leading to improved indoor air quality.
Are permits required for ductwork replacement?
Most local building codes require a permit to ensure the new system meets current energy efficiency and safety standards.