How Much Does Air Duct Replacement Cost in Charlotte? [2025 Data]

If your HVAC system is struggling to keep your home cool in the Charlotte heat, it’s time to inspect your ductwork. Aging or leaky ducts can waste energy and compromise indoor air quality. On average, air duct replacement in Charlotte costs $937, with most homeowners spending between $401 and $1,573. Your final price will depend on the size of your home, the type of duct materials used, and the complexity of the installation. Here's what to expect when making this cool upgrade (see what we did there?).

Air Duct Replacement Cost Factors 

Charlotte, NC’s mix of modern homes and historic properties means ductwork replacement costs can vary widely. From high humidity in the summer to occasional winter freezes, both climate and construction styles impact the scope of your project. Whether you live in a ranch home in SouthPark or a bungalow in NoDa, understanding these cost factors can help you plan your upgrade.

Size

The size of your home directly affects air duct replacement costs. Larger homes require more materials and labor to replace the entire duct system. On average, the price ranges from $2,000 to $5,000 for a small- to medium-sized home. However, duct replacement can run as low as $1,400 for smaller homes and as high as $9,000 for larger homes. Here’s how the size of your home affects duct replacement costs:

Duct Location

If only specific sections of your ductwork need replacement, such as in a renovation project, costs will depend on the location of the damaged or worn ductwork. Replacing ducts in hard-to-reach or concealed areas—like attics, basements, ceilings, walls, or crawl spaces—can increase labor costs. Here’s how the location of the ducts could affect their cost:

Duct Material

The material you choose for your replacement ducts affects both their cost and longevity. Flexible ducts are popular in Charlotte for retrofits, while new builds in areas like Steele Creek often use durable sheet metal for longevity and airflow control.

Sheet metal ducts are durable but pricey. Flexible ducts, on the other hand, are more affordable but may need to be repaired or replaced sooner. Here’s a breakdown of air duct replacement costs based on different types of air ducts:

HVAC Pro Costs

Charlotte HVAC contractors charge between $75 and $125 per hour, depending on their experience, the complexity of the job, and demand—especially during peak cooling months. Duct replacement often requires the assistance of two or more technicians and can take up to three days, especially in older homes or those with limited attic access.

Some Charlotte HVAC companies also offer energy audits or ductwork inspections, which may cost extra but can help you pinpoint inefficiencies. For the most accurate pricing, get multiple quotes from licensed HVAC pros in Charlotte.

Labor Costs

Most HVAC pros in Charlotte charge $75 to $125 per hour, with minimum service calls often starting around $100. Labor rates may increase during peak cooling months (July and August) or if weekend or after-hours service is required. Larger homes or complex duct layouts may also need more crew hours, raising the final bill.

Permits and Regulations

In Charlotte and throughout Mecklenburg County, a mechanical permit is required for any duct replacement or HVAC modifications involving "the addition, replacement or change in the design of a heating or air conditioning system," regardless of project cost. Permits are issued through Mecklenburg County Code Enforcement's Land Use & Environmental Services Agency (LUESA).

However, permits may not be required for general residential work for projects costing $40,000 or less. Permit fees vary based on project scope and can be estimated through Mecklenburg County's online permit portal. Mechanical permits ensure work meets local building and energy efficiency codes. If you’re considering selling in the near future, remember that unpermitted work can create issues during inspections.

Licensing and Insurance

North Carolina requires HVAC contractors to be licensed through the State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors. Licensed professionals must meet training and testing requirements and carry liability insurance. Many reputable Charlotte companies also hold workers’ compensation coverage to protect homeowners in case of on-site accidents. Before hiring, always ask your contractor for proof of license and insurance.

Local Climate Considerations

Charlotte’s hot, humid summers and damp winters can be tough on duct systems. Crawl spaces are common in North Carolina homes, and without proper sealing and insulation, they can harbor moisture, mold, or pests. Many local HVAC pros recommend wrapping new ducts in insulation and sealing joints with mastic or foil-backed tape to improve energy efficiency and indoor air quality.

Additional Pros to Consider Hiring 

In Charlotte, ductwork replacement may require additional contractors, especially in homes with finished basements or sealed crawl spaces. Here’s who else you might need:

• General contractors: To remove drywall or ceiling finishes in homes with ducts hidden behind structural elements. Mold remediation specialists: Charlotte’s humid climate can lead to moisture issues in crawl spaces or near HVAC units, requiring mold cleanup in dirty air ducts before replacement. Insulation contractors: To wrap ducts and prevent energy loss—especially in unconditioned attic spaces.

• Electricians: Needed if your ductwork intersects with electrical wiring or smart HVAC components.

• Asbestos abatement teams: In pre-1980 homes in neighborhoods like Elizabeth or Cotswold, asbestos insulation around old ducts may require professional removal.

Does Air Duct Replacement Increase Home Value?

Charlotte homeowners can recoup a 30% return on investment (ROI) by installing new ductwork because it adds appeal for Charlotte buyers seeking energy-efficient, low-maintenance properties. In hot, humid regions like the Carolinas, efficient HVAC systems are a top priority. Well-sealed ducts improve airflow, reduce utility costs, and enhance comfort—key features in competitive real estate markets such as Dilworth or the South End.

If your ducts are noisy, poorly insulated, or pushing stale air, replacement can be a smart upgrade to consider before listing your home or investing in a full HVAC system.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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