Typical replacement prices in Indianapolis
| Job | Typical price | Average |
|---|---|---|
| New furnace | $2,818 to $6,462 | $4,626 |
| New central AC | $3,355 to $7,105 | $5,157 |
| Full HVAC replacement | $4,785 to $11,963 | $7,178 |
| Gas furnace and central AC together | $7,000 to $15,000 |
Figures from Angi's Indianapolis cost guides for furnaces, AC and full systems.
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New furnace cost by fuel type
| Furnace type | Typical price |
|---|---|
| Natural gas | $3,800 to $10,000 |
| Electric | $2,000 to $7,000 |
| Propane | $3,700 to $12,500 |
Most Indianapolis homes heat with natural gas. Higher efficiency furnaces cost more up front and less to run.
Common repair costs
| Repair | Typical price |
|---|---|
| Average HVAC repair | about $350 |
| Capacitor | $100 to $250 |
| Igniter | $150 to $300 |
| Thermostat | $150 to $350 |
| Blower motor | $200 to $700 |
| Refrigerant leak | $250 to $1,500 |
| AC compressor | $800 to $3,000 |
Repair prices are national figures from Angi, HVAC repair cost (national).
What affects the price of a new furnace or AC?
- Size: the system should be sized to the house with a load calculation, not just matched to the old unit
- Efficiency: higher AFUE furnaces and higher SEER2 air conditioners cost more but use less energy
- Ductwork and venting: leaky or undersized ducts, or a new flue for a high efficiency furnace, add to the job
- Permits: replacements usually need one, and the contractor should pull it
- Timing: spring and fall installs are easier to schedule than peak summer or winter
Should I replace the furnace and AC at the same time?
If both are near the end of their life, replacing them together usually costs less than two separate jobs and gives you matched equipment that works efficiently together. If one is fairly new, there's usually no need to replace it. A licensed technician can check both and price each option. Ask your gas and electric utilities about current rebates on efficient equipment before you buy.
How this works: Plumbers in Indianapolis Today is a referral service. When you call 317-314-8486, we connect you with an independent, licensed heating and cooling contractor who serves your area. The contractor quotes, performs and stands behind the work, not us.
Sources
- Angi, new furnace cost in Indianapolis
- Angi, AC replacement cost in Indianapolis
- Angi, HVAC replacement cost in Indianapolis
- Angi, HVAC repair cost (national)
Updated November 2, 2026. Figures are published averages, not quotes. Your price depends on the job, the equipment and access, and the contractor will quote before any work starts.
How much does a new furnace cost in Indianapolis?
Angi puts the average at $4,626, with typical prices between about $2,818 and $6,462 depending on size, efficiency and installation.
How much does it cost to replace a furnace and AC together in Indianapolis?
Angi lists $7,000 to $15,000 for a gas furnace and central AC system, and an average full HVAC replacement in Indianapolis of about $7,178.