Furnace Replacement Cost in Aurora, Colorado
Our 2026 estimate for furnace replacement in Aurora, CO is $4,000 to $9,800. That puts Aurora 26% above the national average, mainly because of higher incomes and home values, which push labor rates up and the bigger heating equipment this climate calls for.
Aurora Weather and HVAC Load
In a normal year, Aurora racks up 5,836 heating and 675 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Aurora put in far more hours than the air conditioner. A normal year brings 172 nights at or below freezing and 47 days over 90°F. Snowfall averages about 49 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 65,000 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 | 5,836 |
|---|---|
| Cooling degree days / year | 675 |
| Nights at or below 32°F | 172 |
| Days above 90°F | 47 |
| Average low / high | 34.7°F / 66.8°F |
Aurora Housing Stock
Census figures put the median build year in Aurora at 1985, so a typical house here has about 41 years on it. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Owners live in 63.3% of occupied homes, roughly 91,000 households. With a median household income of $84,320 and a median home value of $444,500, local labor rates come out above the national middle in our model.
Between 2020 and 2025, NOAA's Storm Events Database logged 20 hail days and 24 days with damaging thunderstorm winds in Arapahoe County. The largest hail reported was 2.5 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. Arapahoe County also had 5 tornado days in that period.
When Replacement Makes Sense
- A repair quote runs past a third of the cost of a new unit
- A tech found a cracked heat exchanger, or the CO detector has gone off
- 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
What Moves the Price
- Condition of the existing ductwork and any changes it needs
- New PVC venting if you move to a condensing model
- AFUE rating: a basic 80% unit vs. a 96% condensing furnace
- Single-stage, two-stage or modulating gas valve
- Permit and inspection fees, which the local building department sets
- BTU size, which should come from a Manual J load calculation
For Aurora we raised the national figures about 26%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- The permit and the manufacturer warranty registration
- Combustion and safety tests
- The new furnace, filter rack and thermostat wiring
- Removing and hauling away the old furnace
- Gas line and vent connections
Colorado Permits, Efficiency Rules and Rebates
Colorado 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 Aurora generally need a mechanical permit, and a reputable contractor will pull it for you. Ask for their Colorado 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
- Ask for the Manual J load calculation in writing. Oversized furnaces are the most common mistake we see.
- 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.
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Furnace Replacement Questions from Aurora Homeowners
How much is furnace replacement in Aurora?
Plan on $4,000 to $9,800, with most jobs near $7,200. 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 Aurora?
Between late spring and early fall. Aurora averages 172 freezing nights a year, and heating calls spike from November through February.
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.
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.
Furnace Replacement Near Aurora
- Denver $4,400 to $10,600
- Colorado Springs $4,000 to $9,700
- Fort Collins $4,200 to $10,200
- Lakewood $4,300 to $10,400
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Cherry Creek Dam; NOAA Storm Events Database 2020-2025, Arapahoe County. Prices are our estimates, not contractor quotes. Updated 2026.