The basic cost to Install Ductwork is $15.55 - $18.63 per linear foot in January 2026, but can vary significantly with site conditions and options. Use our free HOMEWYSE CALCULATOR to estimate fair costs for your SPECIFIC project. See typical tasks and time to install ductwork, along with per unit costs and material requirements.
See professionally prepared estimates for hvac ductwork. New ductwork costs $1,400 to $5,600 to install or replace. Air duct replacement costs $25 to $55 per linear foot or $270 to $500 per duct.
Adding a vent to existing ductwork costs $250 to $500. HVAC ductwork repair costs $200 to $700 for minor leaks. Duct sealing costs $400 to $2,700.
An HVAC system's ductwork is responsible for transporting heated or cooled air throughout your home, distributing it to each room, and returning the air to the indoor unit to start the heating or cooling cycle once more. According to industry averages, the cost to install an HVAC duct system can range from a low of $1,500 to well over $20,000. The cost of installing a 3-ton HVAC system is $9,500-$13,500.
New ductwork typically costs between $2,000 and $3,000 per ton. On average, ductwork installation costs $3,000. Learn about the factors affecting your ductwork installation cost and some related services.
Split AC systems cost approximately half the price of central air conditioning while providing targeted cooling without requiring ductwork, making them ideal for older homes or specific room cooling needs. Discover the cost to install ductwork. Learn about average prices, cost factors, and tips to save money on your ductwork installation project.
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Buyers typically pay for a split-system air conditioner based on unit capacity, efficiency (SEER), and installation complexity. Key cost drivers include equipment size (tons), refrigerant needs, ductwork or zoning, and local labor rates. The following numbers reflect typical U.S.
pricing for split. Typically, the cost to replace ductwork costs between $1,856 and $17,149 on average. Some older homes have no central heating or cooling system and require adding a new ductwork system throughout.
Depending on the size of the house and the duct placement and material, adding new HVAC ductwork typically costs between $1,436 to $16,211. The average cost of ductwork installation is from $1,400 to $5,600.¹ You can expect to pay $25 to $55 per linear foot.2 No two ductwork replacement projects are identical, as every home has different requirements.