How Much Does A New Furnace Cost For A 2000-Square-Foot House?

A new furnace for a 2,000-square-foot house typically costs $2,500 to $7,500 including standard gas furnace installation. Pricing varies most with equipment efficiency and the work needed to fit your home, since correct sizing is based on a load calculation—not square footage alone. We install and replace furnaces throughout the Lane area with a focus on right-size design to avoid short cycling and wasted energy. Eligible Trane heating and cooling systems may qualify for up to a $1,500 rebate if purchased before 11/15/26.

Key cost drivers to review with your estimator:

• Efficiency tier (standard vs high-efficiency) and staging/communicating controls
• Installation complexity, venting or gas line changes, and code updates
• Duct condition, airflow needs, and filter/IAQ upgrades
• Thermostat and zoning choices that affect comfort and parts

A typical install takes 4–8 hours, and final pricing is confirmed after an on-site assessment.

Updated: 2026-10-12

Need help in Lane, IL? Call 217-247-4108 or book online.