Heat Pump Repair in Dearborn Heights, Michigan
A heat pump repair visit in Dearborn Heights, MI usually costs $180 to $880. Where you land depends on the part. A capacitor or defrost sensor sits at the low end, while a reversing valve or defrost control board pushes the bill toward the top.
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Dearborn Heights Weather and HVAC Load
In a normal year, Dearborn Heights 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 Heights put in far more hours than the air conditioner. On average, Dearborn Heights gets 136 freezing nights and 16 days above 90°F per year. Snowfall averages about 31 inches.
| Heating degree days / year | 6,365 |
|---|---|
| Cooling degree days / year | 735 |
| Nights at or below 32°F | 136 |
| Days above 90°F | 16 |
| Average low / high | 40°F / 59°F |
Dearborn Heights Housing Stock
Census figures put the median build year in Dearborn Heights at 1958, so a typical house here has about 68 years on it. 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 16,000 households here own their home, 71.6% of the occupied total. Homes here have a median value of $174,900 and households a median income of $61,035. Those two numbers drive the labor adjustment in our estimate.
Wayne County had 5 hail days and 30 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. 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
- Ice builds up on the unit and doesn't melt off
- Grinding or loud buzzing from the outdoor unit
- Cool air coming out in heating mode
What Moves the Price
- Emergency or after-hours service
- Finding and fixing a refrigerant leak, then recharging
- Which part needs replacing: a reversing valve, defrost board or sensor
- Whether the parts warranty still covers it
- The diagnostic fee
We raised the national figures about 4% for Dearborn Heights 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
- Checking refrigerant pressures
- Diagnosis in both heating and cooling mode
- A full test run
- A defrost cycle test
- Replacing the failed parts
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
- Many heat pumps carry a 10-year parts warranty if they were registered. Find out whether yours was.
- 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 Heights Homeowners
What does heat pump repair cost in Dearborn Heights?
Most bills land between $180 and $880, including the service call. A typical visit is about $570. 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 Heights
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.