How Much Does Air Duct Replacement Cost? (2026 Pricing)
When was the last time you thought about the cost of air ducts replacement? If your system is 15-20 years old, it may be:
- Causing your energy bills to rise
- Lowering your indoor air quality
- Supplying uneven heating and cooling
We’ll cover How much does it cost to replace ductwork?…. and more.
Our team of HVAC and air duct specialists is going to explain real cost estimates, factors that affect pricing in 2026, tips to save money, and how to plan your ductwork upgrade..
If you plan on an air duct replacement this year, we’ll guide you through the process with expert insights. We also provide a full range of heating services that may complement your ductwork replacement.
Get professional guidance on the right duct replacement solution for your home
How Much Does Air Duct Replacement Cost in 2026?
Here’s a comprehensive overview of ductwork price list:
- Average: $3,500.
- Low-end: $1,000 – $1,500.
- High-end: $7,000 – $10,000+.
- Typical: $1,400 – $7,000+.
Low-end costs reflect a home that is small and often requires a partial replacement. The high-end cost to replace HVAC ductwork is for homes of 3,000+ sq. ft. that have complex layouts or hard-to-access locations.
The cost to replace HVAC ductwork varies by multiple factors, which we’ll discuss in greater detail below.
Pricing does not include additional residential air conditioning services or AC repair.
Average Cost of Air Duct Replacement
Replacing extensive systems costs more than the traditional home in the area. Bay Area Metro Center reports that the medium home size is under 1,300 square feet.
Based on these figures, your ductwork installation cost will be around $3,500. Prices increase due to complexity and access.
Cost Range Based on Home Size and Type
Your building’s square footage impacts pricing. Large homes require more extensive ductwork for heating and cooling to reach your space.
General AC duct replacement cost based on home size is:
| Home Size | Average Cost Range |
|---|---|
| 1,000-1,500 sq ft | $1,500-$4,500 |
| 1,500-2,000 sq ft | $2,500-$5,500 |
| 2,000-2,500 sq ft | $3,500-$6,700 |
| 2,500-3,000 sq ft | $4,500-$7,800 |
| 3,000-4,000 sq ft | $6,000-$10,000+ |
Materials and Their Impact on Price
Ductwork installation cost also depends on accessibility. If your ducts are easily accessible, you’ll pay less in labor. When our team needs to go into the crawl space, this is more extensive.
Placement factors are below:
- Attics: $2,200-$5,600
- Basements: $1,800-$3,100
- Crawl Spaces: $3,000-$7,300
- Walls/Ceilings: $1,000-$4,000
What Factors Affect Air Duct Replacement Cost?
Your home is unique. If you have a complex system, you can expect the cost to replace ductwork to be higher. We may also recommend different materials and some systems are more complex than others.
Below are the most common factors that impact the cost to replace HVAC ductwork.
Duct Material (Flexible vs. Sheet Metal vs. Fiberglass)
Naturally, your AC duct replacement cost depends on material and your linear footage. A few things to consider are:
- Flexible materials are low cost, but they have a shorter lifespan. You may pay up to $4 per linear foot.
- Fiberglass is susceptible to moisture damage, but it’s also energy-efficient. You may pay up to $7 per linear foot.
- Sheet metal is the most durable option with prices up to $13 per linear foot.
Our technicians will discuss these options with you.
Labor and Installation Costs
We pay our technicians well. Every area and company has to factor these expenses into your ductwork replacement cost.
Complexity of Your HVAC System
How much does it cost to replace ductwork? We can only provide an estimate without going to your home for a full inspection. Complex systems, especially if crawl spaces and repairs are necessary, often cost more than a simple replacement.
Local Market and Regional Pricing Differences
Air duct replacement cost varies by area. We provide services in the Bay Area, which is often 25% higher than the national average because labor costs can be as much as 50% of the total estimate.
We also have to comply with the California Title 24 Energy Code and consider permit fees on major projects.
Additional Air Duct Replacement Costs
We consider all factors to provide you with an accurate estimate without hidden fees. Some of the things we consider when estimating your ductwork replacement cost are:
1. Wall and Ceiling Repairs
What work needs to be performed prior to us working to replace air ducts? If your walls or ceilings need repairs, this is added to the overall price.
2. Removing Your Old Air Ducts
You may get extra charges if contractors need to remove old ducts before replacing ductwork. Homes with crawl spaces, small attics or complicated layouts may require more labor. That extra work raises the overall cost.
Proper removal improves safety and ensures your new ducts attach securely.
3. HVAC Equipment Upgrades
Prices may be higher when you replace air ducts if your system needs upgrades. Old units struggle with new duct systems. This can reduce efficiency and airflow.
A technician may recommend updated components to ensure the system works properly.
Did you recently need emergency air conditioner repair? This is a sign that your equipment may not support a new duct layout without further upgrades.
4. Asbestos Removal
You may face extra costs if technicians find asbestos near your duct system. Older homes often have asbestos around insulation and vents. Contractors must handle this material safely before replacing ductwork.
Licensed professionals must:
- Remove or seal the material to protect your home
- Comply with local regulations
Addressing the issue early on ensures that the project will proceed smoothly and reduces health risks.
How Do You Know When Air Ducts Need Replacement?
Here are the most common signs that it’s time for a replacement.
Poor Airflow or Uneven Heating/Cooling
Consider replacing ductwork in a house if some rooms feel too hot or cold or if the airflow is weak.
Issues like these are signs of blockages, leaks or ducts that aren’t properly sized. A professional can help you understand your air duct replacement cost if you experience this issue.
High Energy Bills
Are your energy costs higher? You may need to replace your ducts. Your HVAC system works harder if you have leaks, poor insulation, or damaged ducts:
- Leaks
- Poor insulation
- Damaged ducts
Pair your duct inspection with residential heat pump services to identify problems and complete all the work at once.
Don’t forget to check the ductwork price list to compare repair or replacement options before you commit to a project.
Mold, Dust, or Air Quality Issues
You should replace your ducts if you notice:
- Mold
- Excessive dust
- Poor indoor air quality
These are all signs of damage, leaks or blocked airflow that impact your system’s performance. The cost to replace HVAC ductwork will be lower than the price of constant repairs.
Have questions about costs or materials? Our specialists are standing by to assist
How Can You Save Money on Air Duct Replacement?
Want to lower your ductwork replacement cost? You can take several steps to keep expenses under control.
Here’s how:
Compare Multiple Quotes
You can make smarter decisions when it comes to air duct replacement cost by doing one simple thing:
- Compare estimates from multiple providers
Review each quote to understand:
- Which services it includes
- The full cost
Use a ductwork replacement cost calculator to verify these prices.
Gather multiple quotes to ensure you pay a fair price and choose a contractor that delivers quality work.
Consider Material Options Carefully
Here’s a simple way to control your HVAC duct replacement cost:
Select the right materials
Sheet metal is durable and offers long-term performance. Flexible ducts are easy to install in narrow spaces. Fiberglass options reduce noise but are more expensive to maintain.
Evaluate the pros and cons of these materials before you make a decision.
Schedule During Off-Peak Seasons
You can lower costs by replacing ductwork in the attic in the spring or fall. Why? Demand is low.
Projects scheduled during this period often have better prices and faster service. Service in the spring and fall also reduces stress on your HVAC system because the weather isn’t extreme.
Combine With Other HVAC Upgrades
You can reduce your new ductwork cost by pairing replacement with other HVAC projects such as:
- AC maintenance
- Energy efficiency updates
Combining projects:
- Lets technicians work efficiently to save on labor and time
- Reduces disruptions to your home
- Ensures your system works at peak performance
When Should You Repair or Replace Ductwork?
You should fix or replace ductwork if you notice:
- Damage
- Leaks
- Poor airflow
Small tears or a loose connection may only need residential heat pump repair. But extensive mold, corrosion or old materials need more than a simple fix. The cost to replace ductwork in this case will be more affordable than frequent repairs.
Homes with complicated layouts or limited access have higher costs when replacing ductwork in a house, especially if the home is older. But a full replacement may be the only practical solution.
How can you tell whether you should make repairs or replace your system?
Signs You Should Replace Your Air Ducts
You should consider a full replacement instead of an air duct repair if:
- Your home experiences uneven temperatures
- Certain rooms feel too hot or cold
- Your indoor air quality is poor
- You hear loud noises while the system is on
Age is also a factor. Ducts that are older with visible wear should be replaced. Otherwise, frequent repairs will eventually outweigh the full HVAC duct replacement cost.
Common Types of Air Ducts
When replacing ductwork in a house, it’s helpful to understand the most common types available.
Your options include:
| Type | Description |
| Flexible ducts | Light and easy to install. They’re great for narrow areas like crawl spaces. But they’re also prone to kinks or compression, so they may require frequent adjustments. |
| Sheet metal ducts |
They offer excellent airflow and pair well with residential heat pump installation. |
| Fiberglass-lined ducts | Reduce sound but need more maintenance. |
Where you install the ductwork will affect the price and type you choose. The cost to replace ductwork in a crawl space (for example) is higher due to limited access and complexity. But a flexible duct may keep expenses lower due to its ability to fit neatly in tight spaces.
The experts you work with will make recommendations to help you choose the right type for your home.
DIY vs. Professional Air Duct Replacement
Should you hire a professional or do the work yourself? Labor prices are one of the biggest concerns when it comes to duct or air conditioning replacement.
But a complicated job like this is often more complicated than it seems.
One small mistake can:
- Reduce airflow in your home
- Strain your HVAC system
- Increase expenses over the long term
Professionals ensure three critical things:
- Proper sizing
- Accuracy
- Safe installation
These are key factors that directly influence your new ductwork cost. Pros also have the tools to assess efficiency problems and seal connections properly.
The expertise they bring to the table makes it well worth the expense, especially if you have an older home. The cost to install ductwork in an old house is normally higher due to outdated materials, tight spaces and other factors. But a licensed technician will know how to evaluate these challenges and avoid costly errors.
A DIY installation is risky. It’s best to call a professional to ensure the work is done properly.
How to Plan Your Air Duct Replacement Budget in 2026
To plan your budget, you need to understand the factors that influence prices.
Your air duct replacement cost will depend on:
- The size of the home
- The complexity of your duct layout
- Whether there is any damage
- Labor rates
- Material choices
Start with a professional inspection to get an accurate estimate of the cost to replace ductwork that includes:
- Removal of the old system
- Installation of the new ductwork
- Sealing
- Testing
Set aside an additional 10–15% for unexpected costs.
With a little planning, you’ll know exactly what to expect and ensure that your new system is efficient for years to come.
Improve comfort, efficiency, and safety! Request your customized air duct estimate today
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