How much does a new furnace cost for a 2000 square-foot house?

A new furnace for a 2,000-square-foot house is priced after an in-home assessment because total cost depends on equipment size, efficiency, and installation scope. Most price differences come from right-sizing the unit (so it’s not too big or small) and the efficiency rating you select.

We install and replace furnaces throughout the Commerce City area with upfront, itemized quotes. Free quotes for furnace replacement and financing options are available.

When we price a replacement, we look at:

• Ductwork condition and airflow needs
• Venting and flue requirements
• Gas or electrical upgrades and code updates
• Installation access (attic, crawlspace, closet) and thermostat/IAQ add-ons

Schedule an on-site assessment to lock in an accurate price and proper sizing.

Updated: 2026-03-31

Need help in Commerce City, CO? Call (720) 994-7055 or book online. “He and his teammate were on time, efficient and extremely helpful.” — Kathrine G.