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

A new furnace for a 2,000 sq ft home doesn’t have a one‑size price; Golden West provides a firm, written estimate after an in‑home sizing and installation review. The biggest cost driver is the required furnace size (BTUs) and efficiency rating needed to heat the space safely and evenly. We regularly install properly sized furnaces for homes around Louisville, ensuring the design matches ducts, venting, and electrical or gas connections. A tech insight: the quietest, most comfortable systems are usually the ones that were sized from a real load calculation, not just the old nameplate.

Key factors that set the final price:

• Equipment size and efficiency (standard vs high‑efficiency)
• Scope of installation (ductwork changes, venting, gas/electrical upgrades)
• Add‑ons (smart thermostat, air quality, zoning)
• Permit, code, and access constraints

If your current unit has a cracked heat exchanger or repeated major failures, replacement is typically the safer and more cost‑effective path; otherwise, a targeted repair may be reasonable. Schedule an in‑home assessment to verify load, code requirements, and receive a firm price before any work begins. <br/> Updated: 2026-04-06 <br/> Need help in Louisville, CO? Call 7206138880 or book online. “Carlos did an outstanding job fixing my furnace. He was friendly, professional and was very skilled.” — Scott P.