How Much Does Air Duct Repair Cost?

Is there a noticeable drop in airflow throughout your home? Are some rooms warmer or cooler than others? If you answered “yes” to either of these questions, your air ducts might be damaged and in need of repair.

Though often hidden from view, air ducts are a common source of airflow issues. Over time, they can develop problems like leaks, cracks, or blockages, which can affect your home’s comfort and increase your energy bills. HVAC.com breaks down the costs of air duct repair and the factors that influence the price.

Types of Air Duct Damage

Some of the most common issues with air ducts include:

• Leaks and Cracks: Ducts can develop leaks or cracks over time, often at the seams or joints. These gaps allow conditioned air to escape, causing your system to run longer cycles which reduces your system's efficiency and drives up energy costs.
• Disconnections: Sections of ductwork can sometimes become disconnected because of improper installation or structural shifts in the home. Disconnects can disrupt airflow, leading to uneven heating or cooling in different areas of your home.
• Punctures and Holes: Sharp objects, rodents, or other pests can cause punctures or holes in your ductwork. These openings allow air to leak out and can also contaminate your home’s air supply
• Collapsed Ducts: Flexible ducts, in particular, are prone to collapsing under pressure or if they are improperly supported. A collapsed duct restricts airflow, reducing the system’s ability to properly heat or cool your home.
• Blockages: Debris, dust, or small animals can block your ducts, restricting airflow and forcing your HVAC system to work harder. This added strain can cause more wear and tear on the system.

Recognizing and fixing these issues early helps keep your home comfortable, your HVAC system running smoothly, and your energy bills in check.

Factors Influencing Air Duct Repair Costs

The cost of air duct repair can vary widely depending on several factors, including:

Extent of Damage

Minor repairs, like sealing small leaks or tightening loose connections, usually cost less. However, if your ducts are badly damaged and need sections replaced, the repair cost will go up.

Accessibility

The location of your ducts can greatly affect the repair cost. If they’re easy to access in a basement or attic, repairs will be cheaper. But if they’re hidden behind walls or ceilings, the repairs will be more complicated and costly.

Type of Ductwork

The type of ductwork you have can also impact the cost. Flexible ducts, for example, are easier and cheaper to repair than rigid metal ducts. Additionally, older duct systems may require more extensive repairs or even replacement, driving up costs.

Size of the System

Larger homes with more extensive and complex ductwork typically cost more to repair because of the increased labor and materials required.

Inspection and Diagnostic Fees

Before starting any repairs, your contractor might check for leaks or use special cameras to see inside. These inspections can add to the total cost.

Average Costs for Air Duct Repair

While the best way to determine the cost of air duct repairs is to get a quote from an HVAC contractor, on average you can expect to pay:

• Minor Repairs: For small leaks or loose connections, you can expect to pay between $150 and $300. This usually covers the labor and materials for simple fixes.
• Moderate Repairs: If your ducts have more serious issues, like bigger leaks, the cost can range from $300 to $700. This might involve sealing, insulating, or replacing small sections of ductwork.
• Major Repairs: For extensive damage that needs significant repairs or duct replacement, costs can range from $700 to $1,500 or more. If your ductwork is difficult to access or requires complex work, the price will be higher.

Keep in mind that these are average estimates. The final cost will vary based on your specific situation and the details of the repair.