Heat Pump Repair in Madison, Wisconsin
A heat pump repair visit in Madison, WI usually costs $220 to $1,050. 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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Madison Weather and HVAC Load
In a normal year, Madison racks up 7,096 heating and 639 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Madison put in far more hours than the air conditioner. On average, Madison gets 157 freezing nights and 10 days above 90°F per year. Snowfall averages about 39 inches.
| Heating degree days / year | 7,096 |
|---|---|
| Cooling degree days / year | 639 |
| Nights at or below 32°F | 157 |
| Days above 90°F | 10 |
| Average low / high | 37.3°F / 57.1°F |
Madison Housing Stock
Half the homes in Madison were built before 1979 (Census ACS median), so the typical house is about 47 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. Madison has roughly 59,000 owner-occupied homes, or 46.6% of households. Homes here have a median value of $346,900 and households a median income of $76,983. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 24 hail days and 30 days with damaging thunderstorm winds in Dane 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. Dane County also had 7 tornado days in that period.
Symptoms Worth a Service Call
- The system is stuck in heating or cooling
- Grinding or loud buzzing from the outdoor unit
- Ice builds up on the unit and doesn't melt off
- Cool air coming out in heating mode
What Moves the Price
- Finding and fixing a refrigerant leak, then recharging
- The diagnostic fee
- Emergency or after-hours service
- Whether the parts warranty still covers it
- Which part needs replacing: a reversing valve, defrost board or sensor
For Madison we raised the national figures about 24%, 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
- A full test run
- Replacing the failed parts
- Diagnosis in both heating and cooling mode
- Checking refrigerant pressures
- A defrost cycle test
Wisconsin Licensing and Efficiency Rules
Wisconsin 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. Most repairs don't need a permit. Anyone who opens the refrigerant circuit does need EPA Section 608 certification, and in Wisconsin the company should carry a state license or registration. Ask for both.
Before You Hire
- Book maintenance twice a year, once before summer and once before winter.
- Keep two feet clear around the outdoor unit, including snow.
- Light frost on the outdoor unit in winter is normal. A solid block of ice is not.
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Heat Pump Repair Questions from Madison Homeowners
What does heat pump repair cost in Madison?
Most bills land between $220 and $1,050, including the service call. A typical visit is about $680. 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 Madison
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Uw Arboretum Madison; NOAA Storm Events Database 2020-2025, Dane County. Prices are our estimates, not contractor quotes. Updated 2026.