Furnace Replacement Cost in Indianapolis, Indiana
Furnace replacement in Indianapolis runs about $5,900 for a typical job. Basic installs start near $3,300. High-efficiency equipment with duct or electrical work can reach $8,100.
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Indianapolis Weather and HVAC Load
In a normal year, Indianapolis racks up 5,703 heating and 946 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Indianapolis put in far more hours than the air conditioner. On average, Indianapolis gets 120 freezing nights and 13 days above 90°F per year. Snowfall averages about 26 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 60,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.
| Heating degree days / year | 5,703 |
|---|---|
| Cooling degree days / year | 946 |
| Nights at or below 32°F | 120 |
| Days above 90°F | 13 |
| Average low / high | 42.4°F / 61.3°F |
Indianapolis Housing Stock
The median Indianapolis home dates to 1972, according to the Census ACS. That makes the typical house about 54 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Owners live in 55.3% of occupied homes, roughly 199,000 households. Homes here have a median value of $207,000 and households a median income of $62,995. Those two numbers drive the labor adjustment in our estimate.
NOAA storm reports for Marion County show 17 hail days and 36 days with damaging thunderstorm winds over the six years from 2020 to 2025. The largest hail reported was 2 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage.
When Replacement Makes Sense
- Gas or electric bills keep climbing even though usage hasn't changed
- Some rooms stay cold, the burner short-cycles, or the ignitor keeps failing
- A tech found a cracked heat exchanger, or the CO detector has gone off
- A repair quote runs past a third of the cost of a new unit
What Moves the Price
- Permit and inspection fees, which the local building department sets
- Single-stage, two-stage or modulating gas valve
- BTU size, which should come from a Manual J load calculation
- AFUE rating: a basic 80% unit vs. a 96% condensing furnace
- New PVC venting if you move to a condensing model
- Condition of the existing ductwork and any changes it needs
We raised the national figures about 4% for Indianapolis using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Gas line and vent connections
- The permit and the manufacturer warranty registration
- Removing and hauling away the old furnace
- Combustion and safety tests
- The new furnace, filter rack and thermostat wiring
Indiana Permits, Efficiency Rules and Rebates
Indiana falls in the DOE's North region. New split central air conditioners must meet at least 13.4 SEER2, and heat pumps sold anywhere in the U.S. need 14.3 SEER2 and 7.5 HSPF2. Equipment replacements in Indianapolis generally need a mechanical permit, and a reputable contractor will pull it for you. Ask for their Indiana license or registration number and a certificate of insurance with the quote. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- Look up utility rebates on 95%+ AFUE units before you buy.
- Make sure all three quotes are for the same AFUE and staging, or you can't compare them.
- Replace it in early fall if you can. A no-heat emergency in January costs more and leaves you fewer choices.
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Furnace Replacement Questions from Indianapolis Homeowners
How much is furnace replacement in Indianapolis?
Plan on $3,300 to $8,100, with most jobs near $5,900. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule furnace replacement in Indianapolis?
Between late spring and early fall. Indianapolis averages 120 freezing nights a year, and heating calls spike from November through February.
How long does a furnace replacement take?
A straight swap is usually done in one day, somewhere between 4 and 10 hours. Moving to a condensing furnace with new PVC venting can add a few more.
Is a high-efficiency furnace worth it?
In cold climates, a 95%+ AFUE furnace usually earns back the price difference in lower gas bills. Where winters are mild, the payback can take a very long time.
Furnace Replacement Near Indianapolis
- Greenwood $3,600 to $8,700
- Carmel $4,600 to $11,300
- Fort Wayne $3,300 to $7,900
- Evansville $2,800 to $6,800
- Fishers $4,400 to $10,800
- South Bend $3,100 to $7,600
- Bloomington $3,200 to $7,900
- Hammond $3,200 to $7,700
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Indianapolis Side; NOAA Storm Events Database 2020-2025, Marion County. Prices are our estimates, not contractor quotes. Updated 2026.