How accurate is this furnace replacement calculator?

It gives a solid ballpark based on your furnace type, home size, the work needed, and how soon. It’s an estimate, not a quote — venting, gas lines, and local code can shift the final number, which your pro confirms at no obligation.

Is a high-efficiency furnace worth the extra cost?

A 95%+ AFUE furnace costs more upfront but turns more of your fuel into heat, which lowers monthly bills in cold climates and may qualify for rebates or tax credits. In milder climates the payback is slower.

Should I replace the furnace and AC at the same time?

If both are near the end of their life, a combo replacement is usually cheaper than two separate jobs and keeps the system matched for efficiency. Your pro can price a furnace + AC combo on-site.

How long does a furnace last?

A gas furnace typically lasts 15–20 years; electric furnaces often last longer. If yours is past that age, the heat exchanger cracks, or repairs keep adding up, replacement usually beats repair.

Instant tool · Updated 2026

Furnace Replacement Cost Calculator

Estimate your new furnace cost in under a minute. Pick your furnace type, home size, and the job — the calculator below adjusts the price live for your situation. Then talk to a licensed pro for an exact, no-obligation quote.

Start the calculator Call: (855) 321-3116

Interactive estimate

Build your furnace replacement estimate

Every choice updates the price instantly, with a clear equipment / labor / add-ons breakdown — no email required.

Which system?

System size by home

What’s the job?

Add-ons you’ll likely need

Where are you?

Timeline

Your estimate

$4,100–$5,300

Installed price (parts + labor). Updated live.

Equipment (system)$3,000
Labor & installation$1,200
Add-ons$350

Call: (855) 321-3116

No obligation Licensed pros

Estimate only — refrigerant, ductwork, and local code can shift the final number. A pro confirms it on-site.

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National averages · 2026

Average furnace replacement costs

Installed price ranges across the US. Open your city for a locally adjusted estimate.

Gas furnace (80% AFUE)$3,000 – $5,500
High-efficiency gas (95%+ AFUE)$4,000 – $7,500
Electric furnace$2,000 – $4,500
Furnace + AC combo$6,500 – $12,000
Furnace repair (per visit)$150 – $1,800

* Installed (equipment + labor). Permits, gas line, and code upgrades may be added separately.

Behind the numbers

What affects your furnace replacement cost

Fuel & type

A gas furnace, an electric furnace, or a heat pump each price differently. Gas is the most common; electric is cheaper to install but costs more to run.

Efficiency (AFUE)

A standard 80% AFUE furnace costs less upfront; a 95%+ high-efficiency model costs more but cuts fuel use and may qualify for rebates.

Size (BTU)

A bigger or colder home needs more heating output (BTUs). Right-sizing matters — an oversized furnace short-cycles and wastes fuel.

Venting & gas line

High-efficiency furnaces need different venting, and a new or extended gas line adds labor. Reusing existing venting keeps a swap affordable.

Permits & code

Most jurisdictions require a permit, inspection, and a combustion-safety check on gas equipment. Some areas add duct sealing requirements.

Local labor

Labor rates swing by metro. The calculator anchors to national averages; your city page adjusts for local rates.

FAQ

Furnace replacement calculator FAQs

In 2026, a standard 80% AFUE gas furnace runs about $3,000–$5,500 installed, a high-efficiency 95%+ AFUE model $4,000–$7,500, and an electric furnace $2,000–$4,500. Replacing the furnace and AC together runs $6,500–$12,000. Use the calculator above and a pro confirms it on-site.

Got your estimate? Lock in the real price.

Talk to a licensed furnace pro now — no obligation, no pressure.

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