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

At Diamond Heating and Cooling, the cost to install central air with ductwork is confirmed only after an on-site assessment and duct evaluation, not a flat price. The biggest swing in pricing comes from home size and the condition or presence of existing ducts, since duct design drives both labor and materials. We install to manufacturer and local code specs, coordinate permits and inspections, and commission the system so it performs as rated. We routinely manage these steps across the Treasure Valley, which helps avoid surprises during installation. Free equipment estimates are available.

Key factors that set the price:

• Home size, layout, and room count (load calculation results)
• Ductwork scope: new runs, replacement, sealing, or repairs
• AC equipment efficiency level and matched components
• Electrical upgrades, thermostat choice, IAQ add-ons, and permit fees

Schedule an assessment to get a firm written estimate based on load calculations and a duct inspection.

Updated: 2026-04-15

Need help in Emmett, ID? Call (208) 378-6624 or book online.