Heat Pump Repair in Flower Mound, Texas
Most heat pump repair bills in Flower Mound come in between $270 and $1,300, service call included. Summer and winter peaks both bring longer wait times. Spring and fall are the slow seasons.
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Flower Mound Weather and HVAC Load
In a normal year, Flower Mound racks up 2,437 heating and 2,625 cooling degree days (NOAA 1991-2020 normals). Neither season dominates in Flower Mound. That balance is a big reason heat pumps and dual-fuel systems sell well in Texas. On average, Flower Mound gets 44 freezing nights and 104 days above 90°F per year.
| Heating degree days / year | 2,437 |
|---|---|
| Cooling degree days / year | 2,625 |
| Nights at or below 32°F | 44 |
| Days above 90°F | 104 |
| Average low / high | 54.7°F / 76.2°F |
Flower Mound Housing Stock
The median Flower Mound home dates to 1997, according to the Census ACS. That makes the typical house about 29 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. About 23,000 households here own their home, 82.3% of the occupied total. With a median household income of $157,737 and a median home value of $514,100, local labor rates come out above the national middle in our model.
Denton County had 53 hail days and 31 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 5.9 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. Denton County also had 4 tornado days in that period.
Symptoms Worth a Service Call
- The system is stuck in heating or cooling
- Ice builds up on the unit and doesn't melt off
- Cool air coming out in heating mode
- The backup heat runs nonstop
What Moves the Price
- Emergency or after-hours service
- Whether the parts warranty still covers it
- The diagnostic fee
- Finding and fixing a refrigerant leak, then recharging
- Which part needs replacing: a reversing valve, defrost board or sensor
We raised the national figures about 54% for Flower Mound 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
- A defrost cycle test
- Diagnosis in both heating and cooling mode
- A full test run
- Replacing the failed parts
- Checking refrigerant pressures
Texas Licensing and Efficiency Rules
Texas 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). A repair usually goes ahead without a permit, but the tech handling refrigerant must hold EPA 608 certification. Ask the company for its Texas license or registration number before the visit.
Before You Hire
- Book maintenance twice a year, once before summer and once before winter.
- Many heat pumps carry a 10-year parts warranty if they were registered. Find out whether yours was.
- Keep two feet clear around the outdoor unit, including snow.
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Heat Pump Repair Questions from Flower Mound Homeowners
What does heat pump repair cost in Flower Mound?
Most bills land between $270 and $1,300, including the service call. A typical visit is about $840. 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 Flower Mound
- Grapevine $230 to $1,140
- Mansfield $230 to $1,130
- Missouri City $210 to $1,040
- Pharr $180 to $870
- Cedar Park $250 to $1,200
- Longview $180 to $860
- San Marcos $180 to $880
- Baytown $180 to $870
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Grapevine Dam; NOAA Storm Events Database 2020-2025, Denton County. Prices are our estimates, not contractor quotes. Updated 2026.