Heat Pump Repair in Dearborn, Michigan

Heat Pump Repair for a home in Dearborn, Michigan

Heat pump repair in Dearborn starts near $190 for a simple fix and can reach $910 for after-hours calls or major parts. A typical bill is closer to $590.

Low end$190simple part, normal hours
Typical$590where most quotes land
High end$910major part or after hours

Compare Free Quotes in Dearborn

Heat Pump Repair cost in Dearborn, MI: $190 to $910, typical $590
Dearborn price range against the U.S. range, with the climate and housing numbers behind it.

Dearborn Weather and HVAC Load

In a normal year, Dearborn racks up 6,365 heating and 735 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Dearborn put in far more hours than the air conditioner. On average, Dearborn gets 136 freezing nights and 16 days above 90°F per year. Snowfall averages about 31 inches.

Heating degree days / year6,365
Cooling degree days / year735
Nights at or below 32°F136
Days above 90°F16
Average low / high40°F / 59°F

Dearborn Housing Stock

Half the homes in Dearborn were built before 1952 (Census ACS median), so the typical house is about 74 years old. Houses that old often still have duct runs sized for an old coal or oil furnace and 60- or 100-amp electrical panels. Both can add cost when new equipment goes in. About 25,000 households here own their home, 68.2% of the occupied total. The median home value is $205,900, and median household income is $65,192. We use both figures to adjust labor and pricing for this page.

NOAA storm reports for Wayne County show 5 hail days and 30 days with damaging thunderstorm winds over the six years from 2020 to 2025. The largest hail reported was 1.5 inches across. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost. Wayne County also had 2 tornado days in that period.

Symptoms Worth a Service Call

  • The backup heat runs nonstop
  • Grinding or loud buzzing from the outdoor unit
  • Cool air coming out in heating mode
  • The system is stuck in heating or cooling

What Moves the Price

  • Which part needs replacing: a reversing valve, defrost board or sensor
  • Emergency or after-hours service
  • The diagnostic fee
  • Whether the parts warranty still covers it
  • Finding and fixing a refrigerant leak, then recharging

We raised the national figures about 8% for Dearborn 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

  • Diagnosis in both heating and cooling mode
  • A defrost cycle test
  • Checking refrigerant pressures
  • Replacing the failed parts
  • A full test run

Michigan Licensing and Efficiency Rules

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. A repair usually goes ahead without a permit, but the tech handling refrigerant must hold EPA 608 certification. Ask the company for its Michigan license or registration number before the visit.

Before You Hire

  • Light frost on the outdoor unit in winter is normal. A solid block of ice is not.
  • Book maintenance twice a year, once before summer and once before winter.
  • Keep two feet clear around the outdoor unit, including snow.

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Heat Pump Repair Questions from Dearborn Homeowners

What does heat pump repair cost in Dearborn?

Most bills land between $190 and $910, including the service call. A typical visit is about $590. Night and weekend calls cost more.

Why is my heat pump blowing cold air?

For a few minutes during a defrost cycle, that's normal. If it keeps going, the usual causes are a stuck reversing valve, low refrigerant or a thermostat set to the wrong mode.

Is it normal for a heat pump to freeze?

A thin layer of frost in winter is normal, and the defrost cycle should clear it. Heavy ice that stays usually means a defrost control or airflow problem.

Heat Pump Repair Near Dearborn

Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Dearborn; NOAA Storm Events Database 2020-2025, Wayne County. Prices are our estimates, not contractor quotes. Updated 2026.