How much does it cost to replace a furnace?
Furnace replacement runs $2,500 for a basic 80% AFUE single-stage gas unit, $4,500 for a typical 95% AFUE two-stage install, and $7,500+ for a modulating high-efficiency furnace with new venting and gas line work.
Quick price points (2026)
| Tier | Cost | Unit |
|---|---|---|
| Low | $2,500 | unit installed |
| Typical | $4,500 | unit installed |
| High | $7,500 | unit installed |