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

Installing central air with new ductwork is a custom project priced after an in-home assessment, and your final cost is confirmed with a flat-rate quote. The largest variable is the scope and accessibility of the new ductwork; equipment size and efficiency also matter because the system must match your home’s cooling load. Our team installs full ducted systems in the Lafayette area and manages permits, testing, and commissioning. In many older homes, tight chases or crawlspaces drive more labor than the condenser itself.

Key factors that shape the quote include:

• Home size and calculated load (tonnage needed)
• Ductwork design, material, number of runs, and access points
• Efficiency rating and system type, plus thermostat or accessory choices
• Electrical upgrades, permits, and removal of old equipment

Book a free in-home consultation to receive a firm, flat-rate installation estimate for your specific home.

Updated: 2026-06-21

Need help in Lafayette, CO? Call (720) 577-4266 or book online. "Every technician who came to our home was courteous, efficient, and clearly experienced in their trade. The scheduling process was seamless, and they kept us updated every step of the way." — Elliot L.