Furnace Replacement Cost Calculator (2026)

Estimate your furnace replacement cost

Furnace fuelGas is most common; electric units cost less upfront but more to run in cold climates.EfficiencyHigh-efficiency furnaces cost more upfront but lower energy bills and may earn rebates.Home sizeLarger homes need higher-capacity furnaces.DuctworkNew or modified ductwork adds significant labor and materials.Your ZIP code (for local pricing)We use your ZIP to adjust the estimate to local prices in your area.

Number of furnaces

Estimated cost

Get real furnace replacement quotes

Compare free, no-obligation quotes from vetted local pros near you.
Get my free quotes
Advertising disclosure: we may earn a commission from quote requests, at no cost to you.

Pricing from your areaEstimates adjust to local prices using your ZIP code.

Instant estimateAdjust options and see the cost update live.

No sign-upYour inputs stay in your browser.

Average furnace replacement cost

Scenario	Typical range (US)
Gas furnace (installed)	$3,000 – $6,000
High-efficiency gas	$4,500 – $8,000
Electric furnace	$2,000 – $4,500
Oil furnace	$4,000 – $7,500
With ductwork changes	$5,000 – $10,000

What affects furnace replacement cost

Fuel type. Gas is common; oil and electric vary in price and running cost.
Efficiency rating. Higher AFUE furnaces cost more upfront but save on energy.
Furnace size. Bigger homes need higher-BTU units.
Ductwork. New or modified ducts add cost.
Labor and permits. Licensed HVAC installation and permits add to the total.
Location. Climate and regional rates affect pricing.

Frequently asked questions

How much does a new furnace cost?

Installed, a gas furnace typically runs $3,000 to $6,000, more for high-efficiency or with ductwork.

Is a high-efficiency furnace worth it?

In colder climates, the energy savings and rebates often justify the higher upfront cost.

How long does a furnace last?

Most furnaces last 15 to 20 years with regular maintenance.

What size furnace do I need?

Sizing depends on square footage, climate, and insulation; an HVAC pro performs a load calculation.

Should I replace the AC at the same time?

If your AC is also old, replacing both together can save on labor and improve system matching.

Compare quotes

Furnace pricing depends on fuel, efficiency, and ducts. A couple of local HVAC quotes will confirm yours.

Get real furnace replacement quotes

Compare free, no-obligation quotes from vetted local pros near you.
Get my free quotes
Advertising disclosure: we may earn a commission from quote requests, at no cost to you.

Estimates are for general information only and are not professional or financial advice. Actual prices vary by home, materials, and contractor. Get a quote from a licensed pro. Last updated 2026-06-16.