How much does it cost to install a new AC and furnace?

The cost to install a new central AC and furnace as a full HVAC system varies by home and equipment; final pricing is confirmed after an in‑home estimate. The biggest driver is the system size and efficiency needed to meet your home’s heating and cooling load.

A full replacement price also reflects installation scope and any upgrades needed for safe, efficient operation. Our team frequently installs complete systems in the Lafayette area, and we provide free estimates, financing options, and current offers like $1,000 OFF qualifying full AC & furnace installations. If both units are aging or mismatched, a combined replacement often delivers better performance per dollar than piecemeal swaps.

• Equipment tier and efficiency levels selected
• Ductwork condition or modifications
• Electrical/refrigerant line work and thermostat upgrades
• Removal of old equipment, commissioning, and testing

Schedule a free estimate to compare system options and confirm an exact price.

Updated: 2026-05-04

Need help in Lafayette, CO? Call (720) 577-4266 or book online. “Ben was able to help me get a new system.” — Gaspar L.