Furnace & AC Replacement Cost Calculator
Estimate what a new furnace, central air conditioner, or full HVAC system swap will cost installed — based on home size, equipment tier, efficiency rating, and regional labor rates across the US.
These add-ons are common on real installs but easy to forget when budgeting.
- System Size Needed—
- Equipment Cost—
- Labor / Install—
- Ductwork—
- Removal & Permit—
- Add-Ons—
- Total Installed Cost—
Typical fully-installed price ranges reported across the US market in 2026, before regional and home-size adjustments.
| System | Builder Grade | Mid-Range | Premium |
|---|---|---|---|
| Furnace only (installed) | $3,200 – $4,800 | $4,800 – $7,000 | $7,000 – $10,500 |
| Central AC only (installed) | $3,800 – $5,500 | $5,500 – $8,000 | $8,000 – $12,000 |
| Furnace + AC combo (installed) | $6,500 – $9,000 | $9,000 – $13,500 | $13,500 – $20,000 |
| Heat pump system (installed) | $5,500 – $8,000 | $8,000 – $12,000 | $12,000 – $18,000 |
Furnace & AC Replacement Cost Calculator: Estimate Your HVAC Costs Fast
When it comes to the replacing of a furnace and air conditioner, it becomes a major home expense, but you don’t have to wait for a contractor quote to get a useful starting estimate. Because a furnace and AC replacement cost calculator can help you build a realistic budget based on your home size, equipment type, efficiency, location, and installation requirements. For U.S. homeowners, current published estimates put combined furnace and AC replacement at roughly $5,000 to $12,500, with an average around $7,500. Actual costs can be considerably higher or lower depending on the project.
To get the clarification about this, you don’t need to go anywhere. Visit All Types Calculators and get a contractor’s site-specific estimate.
Furnace and AC Replacement Cost Calculator
A practical HVAC replacement estimate can be thought of as:
Estimated Cost = Furnace + AC Unit + Installation + Additional Work − Applicable Incentives
Let’s take an overview of some cost factors and their effects.
Cost factor | What can affect the price |
Furnace | Fuel type, capacity, efficiency, brand and model |
Air conditioner | Cooling capacity, efficiency, equipment type |
Home size | Larger homes may require greater heating and cooling capacity |
Labor | Installation complexity and local labor rates |
Ductwork | Repairs, modifications or replacement |
Electrical work | Panel, wiring or disconnect upgrades |
Gas work | Gas-line or venting modifications where applicable |
Thermostat | Standard, programmable or smart thermostat |
Permits | Local permit and inspection requirements |
Removal | Hauling away existing equipment |
Incentives | Eligible federal, state, utility or local programs |
How Much Does It Cost to Replace a Furnace and AC?
Nowadays, 2026 estimates provide a useful benchmark. Angi reports a combined furnace and AC replacement range of approximately $5,000 to $12,500, while its broader HVAC replacement data gives a range of about $5,000 to $22,000 depending on equipment and project conditions. On the other hand, for individual components, a new furnace is reported at approximately $2,823 to $6,897, while professional AC replacement is estimated at approximately $3,887 to $8,073. Keep in mind that these numbers are budgeting ranges, not guaranteed quotes. Your location, home characteristics, equipment selection and installation requirements can change the final price significantly.
Example Furnace and AC Cost Estimate
Suppose a homeowner receives these estimated costs:
- Furnace: $4,000
- Central AC: $4,500
- Installation: $1,500
- Thermostat and minor materials: $300
- Permit/removal costs: $300
- Estimated project cost: $10,600
This example highlights why looking only at equipment prices can underestimate the total project budget.
What Does a Furnace Replacement Cost?
A furnace replacement cost calculator can provide a quick estimate before you request professional quotes. The following are the key factors that can have a clear impact on the replacement of furnace cost.
Furnace type
Furnace replacement costs can vary depending on the furnace type, size, brand, and installation requirements. Gas furnaces are a popular choice, while electric and high-efficiency models may have different price ranges. So, when you are planning a replacement, this calculator is helpful to consider both the upfront cost and potential long-term energy savings. Understanding these factors can make it easier to choose the right furnace for your home and budget.
Furnace efficiency
Higher-efficiency equipment may have a higher purchase price but can reduce energy consumption. Whether the additional upfront cost makes financial sense depends on your climate, energy prices, expected usage and how long you plan to stay in the home.
Furnace size
It is one of the key factors that can have a deep impact on furnace replacement cost, by heating capacity, commonly expressed in BTUs. Bigger is not automatically better. The U.S. Department of Energy notes that proper HVAC sizing should begin with accurate heating and cooling load calculations. Oversized equipment can increase costs and cause excessive cycling.
Installation requirements
Installation requirements can also affect the total cost of a furnace replacement. The price may depend on the condition of your existing ductwork, electrical connections, gas lines, and ventilation system. If any of these parts need repairs or upgrades, the installation may take more time and cost more. We suggest that you should check these requirements before installation; it can help you understand the overall furnace replacement cost.
What Factors Increase HVAC Replacement Costs?
Your HVAC replacement cost estimator may produce a higher result when the installation requires additional work. The following are the key factors that can increase the costs of HVAC replacement.
- Ductwork modifications
- Electrical upgrades
- Gas or venting modifications
- Difficult equipment access
- Thermostat replacement
- Permits and inspections
- Old equipment removal
- Higher-efficiency equipment
How to Get a More Accurate Furnace and AC Replacement Estimate?
An online furnace replacement calculator works best when you enter realistic details about your home and current HVAC system. Before starting, gather information such as your home’s square footage, ZIP code, furnace and AC types, equipment age, BTU rating, efficiency, number of floors, and ductwork condition. Include any recent insulation or window upgrades, along with possible electrical or gas-system concerns, for a more useful estimate. Use our free-to-use calculator to get a practical budget range, rather than expecting an exact installation price. Finally, compare multiple written estimates from qualified local HVAC contractors and check that each quote clearly covers equipment, efficiency ratings, labor, permits, removal, ductwork, and any additional costs.
What Should You Ask an HVAC Contractor?
- What heating and cooling load calculation was used?
- What furnace capacity and AC capacity are being recommended?
- What are the equipment efficiency ratings?
- Is the equipment properly matched?
- Does the quote include installation and removal?
- Are permits included?
- Does the price include ductwork modifications?
- What warranty applies to equipment and labor?
- Are rebates or incentives available?
- What maintenance is recommended after installation?
Benefits of Using Furnace and AC replacement cost calculator
- Get a Quick Cost Estimate
- Plan Your Budget
- Compare Equipment Options
- Understand Cost Factors
- Avoid Unexpected Costs
- Make Better Decisions
- Save Time
- Compare Contractor Quotes
- Plan for Energy Savings
Frequently Asked Questions
Furnace and ac replacement cost calculator in the USA?
In the USA, furnace and AC replacement typically costs near about $5,000–$22,000, depending on the system type, home size, equipment, and installation requirements.
Furnace and AC replacement cost calculator in California?
In California, furnace and AC replacement typically costs around $7,500–$16,500 for a complete system, depending on equipment and installation needs.
furnace and ac replacement cost calculator near Ohio?
In Ohio, furnace and AC replacement typically costs about $6,500–$13,500, depending on the equipment, home size, and installation requirements.
How much is a new furnace for a 2000 square foot home in Ontario?
For a 2,000-square-foot home in Ontario, a new furnace typically costs around CAD $4,000–$7,000 installed, depending on the furnace type, efficiency, brand, and installation requirements.