Furnace Replacement Cost in Farmington Hills, Michigan
Expect to pay $4,200 to $10,300 for furnace replacement in Farmington Hills, MI. Most homeowners end up near $7,600, depending on the equipment tier and how much of the old setup can be reused.
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Farmington Hills Weather and HVAC Load
NOAA's 1991-2020 climate normals put Farmington Hills at 6,867 heating degree days and 572 cooling degree days per year. Heating is the bigger job here, and furnaces and heat pumps in Farmington Hills put in far more hours than the air conditioner. On average, Farmington Hills gets 146 freezing nights and 11 days above 90°F per year. Snowfall averages about 36 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 70,000 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 | 6,867 |
|---|---|
| Cooling degree days / year | 572 |
| Nights at or below 32°F | 146 |
| Days above 90°F | 11 |
| Average low / high | 37.7°F / 57.6°F |
Farmington Hills Housing Stock
Half the homes in Farmington Hills were built before 1978 (Census ACS median), so the typical house is about 48 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. About 23,000 households here own their home, 64% of the occupied total. Homes here have a median value of $333,200 and households a median income of $101,863. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 9 hail days and 41 days with damaging thunderstorm winds in Oakland County. The largest hail reported was 1.25 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. Oakland County also had 4 tornado days in that period. In Farmington Hills, 20.4% of residents are 65 or older. For older adults, a house with no heat in January or no AC during a heat wave is a medical risk. Mention it when you call, since many companies put those calls first.
When Replacement Makes Sense
- A repair quote runs past a third of the cost of a new unit
- 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
- The furnace is 15 to 20 years old or more
What Moves the Price
- BTU size, which should come from a Manual J load calculation
- Permit and inspection fees, which the local building department sets
- New PVC venting if you move to a condensing model
- AFUE rating: a basic 80% unit vs. a 96% condensing furnace
- Condition of the existing ductwork and any changes it needs
- Single-stage, two-stage or modulating gas valve
We raised the national figures about 32% for Farmington Hills 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
- Removing and hauling away the old furnace
- The new furnace, filter rack and thermostat wiring
- Combustion and safety tests
- The permit and the manufacturer warranty registration
Michigan Permits, Efficiency Rules and Rebates
Michigan 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. Plan on a mechanical permit for most replacements in Farmington Hills; the contractor normally pulls it. Before you sign, ask each bidder for their Michigan license or registration number and proof of insurance. 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
- Replace it in early fall if you can. A no-heat emergency in January costs more and leaves you fewer choices.
- 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 Farmington Hills Homeowners
How much is furnace replacement in Farmington Hills?
Plan on $4,200 to $10,300, with most jobs near $7,600. 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 Farmington Hills?
Between late spring and early fall. Farmington Hills averages 146 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 Farmington Hills
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Farmington; NOAA Storm Events Database 2020-2025, Oakland County. Prices are our estimates, not contractor quotes. Updated 2026.