Furnace Replacement Cost in 2025: What to Budget
Average furnace replacement cost in 2025
Replacing a home furnace in the United States typically costs $2,500 to $7,500 installed, with most homeowners landing between $3,500 and $5,500 for a mid-range unit with standard installation. The wide range reflects differences in furnace size, efficiency rating, fuel type, and local labor rates.
Equipment alone accounts for $1,200 to $4,500 of the total, depending on brand and efficiency. Labor, permits, and miscellaneous materials make up the rest. Use our furnace replacement cost calculator to get a tailored estimate based on your home size, fuel type, and zip code.
Cost breakdown by component
| Component | Typical cost range |
|---|---|
| Furnace unit (80% AFUE gas) | $1,200 to $2,200 |
| Furnace unit (96% AFUE gas) | $1,800 to $3,500 |
| Labor and installation | $800 to $2,000 |
| Permit fees | $50 to $400 |
| Duct modifications (if needed) | $200 to $1,500 |
| Disposal of old unit | $50 to $200 |
What drives the price up or down
- Furnace size (BTUs). A larger home requires a higher-capacity unit. A 60,000 BTU furnace for a small home costs less than a 120,000 BTU unit for a large two-story house.
- Efficiency rating (AFUE). High-efficiency furnaces (90 to 98% AFUE) cost more upfront but save on monthly gas bills. The premium over an 80% model is typically $400 to $1,200.
- Fuel type. Natural gas is the most common and usually least expensive to operate. Propane and oil systems can cost more to install because of tank or line considerations.
- Labor market. HVAC labor rates vary significantly by region. Contractors in major metro areas charge $75 to $150 per hour compared to $50 to $90 in rural markets.
- Emergency vs. scheduled replacement. Scheduling a replacement before your furnace fails gives you time to shop quotes. Emergency winter installs can add $200 to $600 in rush charges.
- Brand. Carrier, Lennox, and Trane command higher prices than budget brands like Goodman or Ducane, though mid-tier brands like Rheem and American Standard offer solid value.
Cost by home size
| Home size | Furnace capacity needed | Installed cost estimate |
|---|---|---|
| Under 1,000 sq ft | 40,000 to 60,000 BTU | $2,500 to $4,000 |
| 1,000 to 1,800 sq ft | 60,000 to 80,000 BTU | $3,000 to $5,000 |
| 1,800 to 2,600 sq ft | 80,000 to 100,000 BTU | $3,500 to $5,500 |
| 2,600 to 3,500 sq ft | 100,000 to 120,000 BTU | $4,500 to $7,000 |
| Over 3,500 sq ft | 120,000 BTU or two units | $6,000 to $10,000+ |
How to save money on a furnace replacement
Getting at least three quotes from licensed HVAC contractors is the single most effective way to reduce cost, with variations of $500 to $1,500 common for the same scope of work. Replacing in the off-season (late spring or early fall) often means faster scheduling and sometimes lower labor rates. Ask about manufacturer rebates and federal tax credits: the Inflation Reduction Act allows a 30% tax credit (up to $600) for qualifying high-efficiency furnaces installed through 2032. Your gas utility may also offer a rebate of $50 to $300 for upgrading to a high-efficiency unit.
Always get quotes from a licensed HVAC professional before committing to any replacement project.
Frequently asked questions
What is the average cost to replace a furnace in 2025? Most homeowners pay $3,500 to $5,500 for a gas furnace replacement including installation. Very large homes or high-efficiency upgrades can push the total to $7,500 or more.
How long does furnace installation take? A straightforward swap-out takes 4 to 8 hours. If ductwork modifications or gas line work are needed, the job can extend to a full day or more.
Is it cheaper to repair or replace a furnace? A common rule of thumb: if the repair cost exceeds 50% of what a new furnace would cost, and the unit is more than 10 years old, replacement usually makes more financial sense long-term.
Bottom line
Budget $2,500 to $7,500 for a furnace replacement, with most homes landing near $4,000 to $5,500 for a mid-range gas unit. Get at least three quotes from licensed HVAC pros to find the best price in your area. Use our furnace replacement cost calculator for a more precise estimate based on your home and location.
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