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

Installing a new AC and furnace is priced after an in-home evaluation because equipment size, efficiency, and site conditions vary by home. The biggest driver is selecting a properly matched system that meets your comfort needs without oversizing. We assess your current setup, discuss goals, and provide a clear, line-item proposal. Our teams frequently handle replacements across the Boulder–Denver area, which helps us anticipate common layout challenges.

Key factors that change total price include:

• Ductwork repairs or modifications and airflow balancing
• Location and access for the indoor/outdoor units and line-set length
• Electrical or gas upgrades, condensate drainage, and venting needs
• Add-ons such as smart thermostats or indoor air quality equipment

We offer a free install estimate, with financing available subject to approved credit. To avoid surprises, book an on-site visit so a licensed tech can size the system and confirm any needed upgrades.

Updated: 2026-05-04

Need help in Boulder, CO? Call 720-613-8880 or book online. “After having so much patience with us thawing out our AC system, he educated and installed a new AC outside unit the same day.” — Ian J.