Furnace Replacement Cost Calculator
Last updated: October 15, 2026
Estimate furnace replacement cost including equipment, labor, venting, gas or electrical upgrades, permits, removal and rebates.
Starting figures illustrate this model. Enter your own measurements, quoted costs and applicable terms; this page does not retrieve live prices or provider rates.
Estimated net furnace replacement cost
—
- Gross project cost: —
- Estimated contingency: —
- Rebates and incentives: —
- Estimated installed cost before rebate: —
On this page
Quick summary: Estimate furnace replacement cost including equipment, labor, venting, gas or electrical upgrades, permits, removal and rebates.
Read the complete guide
Updated reference sections in this guide are in English.
What this calculator estimates
Estimate furnace replacement cost including equipment, labor, venting, gas or electrical upgrades, permits, removal and rebates.
How to use it
Enter Furnace equipment cost ($); Installation labor and materials ($); Venting and duct modifications ($); Gas or electrical upgrades ($); Permits and old unit removal ($); Rebates and incentives ($); Contingency (%). Select Calculate to update the results.
How the calculation works
The calculator adds equipment, installation, venting, utility upgrades, permits and removal. It applies contingency and subtracts entered rebates.
Worked example: starting scenario
| Furnace equipment cost ($) | 4800 |
|---|---|
| Installation labor and materials ($) | 2800 |
| Venting and duct modifications ($) | 900 |
| Gas or electrical upgrades ($) | 600 |
| Permits and old unit removal ($) | 450 |
| Rebates and incentives ($) | 500 |
| Contingency (%) | 8 |
| Estimated net furnace replacement cost | $9,814.00 |
|---|---|
| Gross project cost | $10,314.00 |
| Estimated contingency | $764.00 |
| Rebates and incentives | $500.00 |
| Estimated installed cost before rebate | $9,550.00 |
Important limitations
Fuel type, efficiency, capacity, chimney or vent condition, ductwork, code upgrades and local contractor pricing affect actual cost.