Heat Pump Repair in Billings, Montana
Most heat pump repair bills in Billings come in between $210 and $1,000, service call included. The busiest week of the year is usually the first hard freeze, when furnaces that sat idle since spring get switched on.
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Billings Weather and HVAC Load
Billings logs 6,753 heating degree days and 662 cooling degree days in a normal year, based on the closest NOAA weather station. Heating is the bigger job here, and furnaces and heat pumps in Billings put in far more hours than the air conditioner. On average, Billings gets 142 freezing nights and 32 days above 90°F per year. Snowfall averages about 57 inches.
| Heating degree days / year | 6,753 |
|---|---|
| Cooling degree days / year | 662 |
| Nights at or below 32°F | 142 |
| Days above 90°F | 32 |
| Average low / high | 37°F / 59.4°F |
Billings Housing Stock
Half the homes in Billings 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. Owners live in 64.8% of occupied homes, roughly 33,000 households. Homes here have a median value of $311,800 and households a median income of $71,855. Those two numbers drive the labor adjustment in our estimate.
Yellowstone County had 21 hail days and 32 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 2.75 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. In Billings, 18.4% 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.
Symptoms Worth a Service Call
- The backup heat runs nonstop
- Grinding or loud buzzing from the outdoor unit
- The system is stuck in heating or cooling
- Cool air coming out in heating mode
What Moves the Price
- Emergency or after-hours service
- Finding and fixing a refrigerant leak, then recharging
- The diagnostic fee
- Which part needs replacing: a reversing valve, defrost board or sensor
- Whether the parts warranty still covers it
We raised the national figures about 18% for Billings 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 full test run
- A defrost cycle test
- Replacing the failed parts
- Checking refrigerant pressures
Montana Licensing and Efficiency Rules
Montana 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 Montana 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.
- Keep two feet clear around the outdoor unit, including snow.
- Many heat pumps carry a 10-year parts warranty if they were registered. Find out whether yours was.
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Heat Pump Repair Questions from Billings Homeowners
What does heat pump repair cost in Billings?
Most bills land between $210 and $1,000, including the service call. A typical visit is about $640. Night and weekend calls cost more.
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.
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.
Heat Pump Repair Near Billings
- Bozeman $250 to $1,220
- Missoula $220 to $1,060
- Great Falls $200 to $950
- Butte $190 to $940
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Billings Logan International Airport; NOAA Storm Events Database 2020-2025, Yellowstone County. Prices are our estimates, not contractor quotes. Updated 2026.