How much does it cost to install central air with ductwork?

The cost to install central air with new ductwork is set after an on-site evaluation because duct design, home size, and equipment choices determine the price. The biggest driver is usually how much new ductwork your home needs and where it can be routed, followed by the system’s capacity and efficiency level. Our team regularly installs systems across the Atlanta area, including homes near Buckhead, Decatur, and Marietta, and we right-size equipment and ducts to match the house. On many retrofits, the return air path ends up steering both comfort and price more than people expect.

What affects your final quote:

• Ductwork complexity, material, and access points
• Home square footage, layout, and number of rooms
• AC vs. heat pump choice, efficiency rating, and thermostat controls
• Electrical upgrades, code items, and permit requirements

Schedule a free in-home evaluation to receive a firm, itemized installation quote.

<br />

Updated: 2026-04-08

<br />

Need help in Decatur, GA? Call 770-341-2178 or book online. “The Moncrief team replaced my HVAC unit and could not have been more professional, efficient, and informative.” — Lauren L.