Heat Pump Repair in Mobile, Alabama
Most heat pump repair bills in Mobile come in between $170 and $830, service call included. Wait times stretch in July and August, when Mobile gets most of its 73 days over 90°F.
Mobile Weather and HVAC Load
Mobile logs 1,403 heating degree days and 2,931 cooling degree days in a normal year, based on the closest NOAA weather station. Cooling carries most of the load, which is why compressors and condenser fan motors wear out faster here than in northern cities. Count on roughly 15 nights below 32°F and 73 afternoons past 90°F in a typical year.
| Heating degree days / year | 1,403 |
|---|---|
| Cooling degree days / year | 2,931 |
| Nights at or below 32°F | 15 |
| Days above 90°F | 73 |
| Average low / high | 59.7°F / 78.5°F |
Mobile Housing Stock
Half the homes in Mobile were built before 1974 (Census ACS median), so the typical house is about 52 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. Mobile has roughly 40,000 owner-occupied homes, or 51.4% of households. Homes here have a median value of $170,300 and households a median income of $51,090. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 10 hail days and 32 days with damaging thunderstorm winds in Mobile County. The largest hail reported was 1.5 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. Mobile County also had 18 tornado days in that period.
Symptoms Worth a Service Call
- Grinding or loud buzzing from the outdoor unit
- The backup heat runs nonstop
- Ice builds up on the unit and doesn't melt off
- The system is stuck in heating or cooling
What Moves the Price
- The diagnostic fee
- Which part needs replacing: a reversing valve, defrost board or sensor
- Whether the parts warranty still covers it
- Emergency or after-hours service
- Finding and fixing a refrigerant leak, then recharging
For Mobile we kept the national figures close to unchanged, 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
- Replacing the failed parts
- A full test run
- Checking refrigerant pressures
- Diagnosis in both heating and cooling mode
- A defrost cycle test
Alabama Licensing and Efficiency Rules
Alabama is in the DOE's Southeast region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). Most repairs don't need a permit. Anyone who opens the refrigerant circuit does need EPA Section 608 certification, and in Alabama the company should carry a state license or registration. Ask for both.
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 Mobile Homeowners
What does heat pump repair cost in Mobile?
Most bills land between $170 and $830, including the service call. A typical visit is about $530. 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 Mobile
- Huntsville $180 to $870
- Birmingham $160 to $760
- Montgomery $170 to $830
- Tuscaloosa $160 to $800
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Mobile Downtown Airport; NOAA Storm Events Database 2020-2025, Mobile County. Prices are our estimates, not contractor quotes. Updated 2026.