If your air ducts have been damaged, you’ll need to replace them. The national average air duct replacement cost is $150-$280, which may not include materials. Factors such as duct material, labor, location of ducts and linear feet of ductwork will all affect your final costs. Labor costs will vary based on how accessible the ducts are and what material your ducts are made of. The least expensive duct material is a flexible, non-metallic ducting that costs approximately $1-$2 per linear foot. Flexible aluminum is generally more expensive and stronger than non-metallic ducting. Stainless steel ducting is the strongest, the least flexible (meaning installing it typically has higher labor rates), and usually the most expensive. An average price for air duct replacement could range between $35 and $55 per linear foot, including basic materials and labor. A typical single-family home has 6-10 duct runs; replacing or installing one duct run could average $150-$250 for labor.

The national average dryer vent cleaning costs range from $190 to $260. Dryer vent or duct cleaning costs can vary based on where you live in the country and what ductwork repairs may be required. Duct cleaning pros will use a brush cleaning method, a forced air vacuum, or a combination of the two to remove lint and other debris that can collect in your dryer duct, lint trap housing and vent. If left unchecked, this buildup of highly flammable debris can catch fire and lead to a home fire, says the U.S. Consumer Product Safety Commission. In addition to home safety, a great reason for regular cleaning is the money you’ll likely save on energy bills and improved indoor air quality. Pros may offer a lower rate on their dryer duct cleaning costs when you also hire them to clean your entire HVAC duct system. To ensure you’re working with a pro who will keep your home as safe as possible, read their reviews and check whether they have been certified by a reputable organization such as the National Air Duct Cleaners Association (NADCA) or the Chimney Safety Institute of America (CSIA). Many duct cleaning pros will also show you before-and-after photos as proof of the cleaning.

If you’re concerned about dust, allergens or mold, it may be time to have your air ducts cleaned. The national average cost for air duct cleaning ranges from $190 to $250. Air duct cleaning costs will vary based on a number of factors such as your location in the country, the age and condition of your air ducts, the number of linear feet to be cleaned, and any repairs your ducts may need. HVAC cleaning companies should clearly outline what is included in their services and at what rate, so always make sure you understand and have a written agreement before work begins. Here are some examples of average air duct cleaning costs:

• Tiered pricing for different levels of service:
• Standard cleaning: $100, which may include truck-mounted industrial vacuums, high-pressure air wands and air snakes to clean all supply and return vents, branch lines, and main trunk lines.
• Advanced cleaning: $200, which may include standard cleaning services, plus rotobrush or viper clean sweep in the main trunk lines.
• Ultimate cleaning: $400, which may include advanced cleaning, plus insertion of a viper microline into all vents to force debris down the branch lines and into the main trunk lines, to be handled by the viper clean sweep. Typically, all ductwork surface is contacted, before-and-after photos are provided, and the furnace is cleaned.
• A flat rate for unlimited vents: $289.
• Additional fees for larger houses: $20 for each additional 500 square feet over 2,500.

Here’s how duct cleaning works in a nutshell:

• A professional duct cleaner will inspect your ducts.
• They’ll use vacuums and brushes to clean up dust and debris.
• And then they’ll seal and clean everything up. 

During the inspection process, the air duct cleaner will also look for cracks or leaks. Depending on what they find, they may also recommend repairs.

To learn more about the duct cleaning process for your home, reach out to cleaners near you.

Air duct cleaning is the process of cleaning your various heating and cooling system units, parts and components. This process often includes cleaning the following, according to the EPA:

• supply and return air ducts and registers
• grilles and diffuser
• heat exchangers heating and cooling coils,
• condensate drain pans (drip pans)
• fan motor and fan housing
• air handling unit housing

For a more specific list of tasks, ask duct cleaners near you what's included in their service.