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Furnace replacement cost
A gas furnace replacement runs $3,500–$8,000 installed depending on size and efficiency. High-efficiency (95%+ AFUE) condensing units pay back fastest in cold-climate states; warm-winter states can justify 80% units.
Price at a glance
| Item | Typical |
|---|---|
| Job price range | $3500–$8000 |
| Common variants | Oil furnaces and cold-climate installs run higher |
| Labor share | $1,200–$2,500 of the total |
| Permit | Yes |
| Duration | 1 day typical |
National job price data from the ee.ltd cost database, 2026 edition.
What drives the price
- BTU sizing and blower stage
- 80% vs 95%+ AFUE efficiency
- Venting changes (condensing furnaces use PVC)
- Oil-to-gas conversions add cost
DIY verdict
No — gas connections and venting are licensed work
Other hvac job costs
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