Cost of Repairing Vs Replacing Air Ducts

Published On: May 20, 20230 Comments on Cost of Repairing Vs Replacing Air DuctsTags: Last Updated: March 7, 20245.4 min read

Did you have a certain room in your house this winter that just wouldn’t warm up? The one where, as you entered, the air felt chilly in contrast to the rest of the house? Before you know it, the hot summer days will require the cooling comfort of the AC, and due to malfunctioning air ducts, that one chilly room can turn into a heated room. That’s why we made this ultimate guide to costs of repairing and replacing air ducts.

repairing air duct

Moreover, your home’s air ducts can have a significant impact on the energy efficiency and air quality of your house, so you should make sure air ducts are kept clean and in good condition.

How do air ducts work?

A room’s conditioned air, whether heated or cooled, is delivered by large tubes called air ducts. Your HVAC system works effectively when there are no obstructions like or holes in the tube and the route is clear of debris. However, when obstructed, as well as when a tube is damaged or has a hole in it, the air will either back up or leak out. The HVAC system will work harder than necessary as a result of the air either backing up or leaking out.

Signs of a defective duct

We’ve got a few warning signals you may look out for around your home if you’re wondering how to tell when you could have an issue with your air ducts.

●      Uneven heating/Cooling

If you notice that some rooms are getting warmer than others or that some rooms don’t get as much airflow when your HVAC system is running, it could be a sign that your ducts are leaky because of a problem with the duct sealing.

●      Increased utility costs

Your air ducts are one of the few household issues that will directly affect how energy-efficient your house is. Homes with outdated or broken ductwork can lose 20 to 30% of the air that has been treated circulating through your system. Your HVAC system will have to work harder to keep your home at a comfortable temperature due to that kind of loss rate, which also results in significantly higher electricity expenses.

●      Visibly damaged or leaking duct

Simply taking a glance at your air ducts might reveal whether or not they are leaking. Spend a moment visually inspecting the exposed areas of your attic’s air ducts, being extremely cautious to do so safely! Consider hiring a professional inspector if you can’t do it safely. Indicators of a potential air duct leak include tears, gaps between connections, and cracks in ductwork.

●      Single rooms not cooling

It can be a very clear indication that your air ducts and vent may be the problem if you have a certain room that simply won’t cool down no matter how long you run your air conditioning. The air intended for that area could be venting into your attic, costing you money and cooling nothing. If one room in your home is regularly warmer or cooler than the others, there may be an issue with the ducts that provide that area’s conditioned air.

replacing air duct

Important factors that affect replacement costs

These variables include the job’s size, location, accessibility of your ducting, and the material chosen for the replacement. Let’s examine each of these in greater depth so that you can comprehend how they impact the price of duct replacement.

Location context

If you hire a professional to replace your ducting, including labor expenses, one of the most important determining variables will be the location of your home.


Even though labor costs can be a significant concern, you’ll almost certainly want a team of pros like St Charles ac repair to handle any replacement work.

The magnitude of the task

The magnitude of the job will also be a significant determining element in the project’s overall cost. The majority of contractors will create an estimate based on the amount of ducts and charge per linear foot of rebuilt ducting. Greater ductwork requirements for larger residences will increase project expenses.

Easy of Access

Costs will be greater for jobs where accessing the ductwork is challenging. Contractors will need to make cuts in the ducts to replace them if any of them are inside the walls or in the ceiling. That will result in a lot more work and a higher project expense overall.

Materials fees

The final element affecting the job’s cost is the type of ductwork used. The most long-lasting but most expensive ducting is often made of sheet metal. Although less reliable and rarely utilized over long distances, flexible ducting is also extensively employed.

Costs of Repair vs. Replacement

Repairing ducts will typically be less expensive than replacing them. Based on linear footage, HomeAdvisor calculates the national average for replacing ducts. Remember that estimations are only really helpful to a certain extent, especially when predicting employment costs in places with high cost of living.

If you only need to make minor adjustments to air seals and connections, repair is a great choice. Each repair job’s price will depend on what has to be fixed, how challenging it is to get to, how much each component costs given the material you choose, and whether you require expert labor if you want the repair done.

Replacement cost estimates for ductwork

Depending on the size of the home, experts estimate that the typical cost of replacing an air duct is between $454 and $2,058 or more. The cost per linear foot for this amount ranges from $10 to $35. Generally speaking, a larger home will cost more money. New duct installation is more expensive, with an average estimated cost of $1,500 to $7,000 for 150 to 350 linear feet of ducting. Remember that everything here is relative to a number of variables that may cause the price to be higher or lower than this average estimation cost

In conclusion, generally, it will be less expensive to repair an existing air duct system than replacing air ducts. Replacement costs are typically expressed as a price per linear foot or as a number of ducts. The total cost of the project will depend on a number of factors, including the cost of labor in your neighborhood, the type of ducting utilized, the size of the task, and how difficult it will be to access the ductwork.

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