Heat Pump Repair in Houston, Texas
Heat pump repair in Houston starts near $190 for a simple fix and can reach $940 for after-hours calls or major parts. A typical bill is closer to $600.
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Houston Weather and HVAC Load
In a normal year, Houston racks up 1,222 heating and 3,279 cooling degree days (NOAA 1991-2020 normals). 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 5 nights below 32°F and 109 afternoons past 90°F in a typical year.
| Heating degree days / year | 1,222 |
|---|---|
| Cooling degree days / year | 3,279 |
| Nights at or below 32°F | 5 |
| Days above 90°F | 109 |
| Average low / high | 61.5°F / 79.6°F |
Houston Housing Stock
Half the homes in Houston were built before 1981 (Census ACS median), so the typical house is about 45 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. About 385,000 households here own their home, 42% of the occupied total. The median home value is $253,400, and median household income is $62,894. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 28 hail days and 44 days with damaging thunderstorm winds in Harris County. The largest hail reported was 2 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. Harris County also had 9 tornado days in that period.
Symptoms Worth a Service Call
- Cool air coming out in heating mode
- Ice builds up on the unit and doesn't melt off
- Grinding or loud buzzing from the outdoor unit
- The system is stuck in heating or cooling
What Moves the Price
- Finding and fixing a refrigerant leak, then recharging
- Emergency or after-hours service
- Which part needs replacing: a reversing valve, defrost board or sensor
- Whether the parts warranty still covers it
- The diagnostic fee
For Houston we raised the national figures about 10%, 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 defrost cycle test
- A full test run
- Replacing the failed parts
- Checking refrigerant pressures
- Diagnosis in both heating and cooling mode
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). Most repairs don't need a permit. Anyone who opens the refrigerant circuit does need EPA Section 608 certification, and in Texas the company should carry a state license or registration. Ask for both.
Before You Hire
- Light frost on the outdoor unit in winter is normal. A solid block of ice is not.
- 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 Houston Homeowners
What does heat pump repair cost in Houston?
Most bills land between $190 and $940, including the service call. A typical visit is about $600. 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 Houston
- San Antonio $180 to $900
- Dallas $200 to $960
- Fort Worth $200 to $970
- Austin $240 to $1,160
- El Paso $170 to $840
- Arlington $190 to $950
- Corpus Christi $190 to $930
- Plano $230 to $1,120
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Houston-Port; NOAA Storm Events Database 2020-2025, Harris County. Prices are our estimates, not contractor quotes. Updated 2026.