Furnace Replacement Cost Calculator
Furnace replacement cost depends on fuel type, efficiency and the size of your home. Choose your furnace type to estimate the installed price.
Most homeowners pay $4,600 to $7,900 for a gas furnace, 95%+ AFUE.
Your estimate
- Materials and labor
- Add-ons
- Permit
National installed prices, materials and labor included. Your local quotes may differ.
Furnace replacement cost by option
Installed totals, with standard conditions and permit included.
| Option | Typical total |
|---|---|
| Gas furnace, 80% AFUE | $3,100 to $5,900 |
| Gas furnace, 95%+ AFUE | $4,600 to $7,900 |
| Electric furnace | $1,900 to $4,900 |
| Oil furnace | $4,600 to $8,400 |
What drives the price
- Efficiency (AFUE)A 95% AFUE furnace turns 95% of its fuel into heat. It costs more up front and saves the most in cold climates.
- Fuel typeGas is the most common. Electric furnaces are cheap to install but expensive to run. Oil costs the most.
- VentingSwitching from an 80% to a 95% furnace needs new PVC venting, since the old chimney flue can't be reused.
- SizeBigger homes need more BTUs, and variable-speed blowers add comfort and cost.
How this estimate works
The calculator starts from the installed price range for the type you pick, adjusts it for the conditions you set, then adds any extras you tick and typical permit. The headline number is the midpoint of your range. Low-end prices fit simple jobs in lower-cost areas. High-end prices fit complex jobs, premium brands and high-cost metros.
Get at least three written quotes before you hire. Ask each contractor to list materials, labor, permits and disposal separately so you can compare them line by line. Read how we build our ranges.
Common questions
How long do furnaces last?
Many gas furnaces last around 15 to 20 years with regular maintenance.
Should I replace my AC at the same time?
If both are near the end of their life, replacing them together can lower labor cost and ensure matched equipment.
Is a high-efficiency furnace worth it?
In cold climates with long heating seasons, the fuel savings usually justify the higher price.
Sources and method
Price ranges are national installed estimates maintained by the HouseMath editorial team and last reviewed September 2026. For the labor side of the job, see the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics data for heating, air conditioning, and refrigeration mechanics and installers (SOC 49-9021), which shows how trade wages differ by state.