Heat Pump Repair in Marietta, Georgia
Most heat pump repair bills in Marietta come in between $180 and $880, 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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Marietta Weather and HVAC Load
In a normal year, Marietta racks up 3,050 heating and 1,309 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Marietta put in far more hours than the air conditioner. Count on roughly 64 nights below 32°F and 10 afternoons past 90°F in a typical year. Snowfall averages about 1 inches.
| Heating degree days / year | 3,050 |
|---|---|
| Cooling degree days / year | 1,309 |
| Nights at or below 32°F | 64 |
| Days above 90°F | 10 |
| Average low / high | 50.1°F / 70.2°F |
Marietta Housing Stock
The median Marietta home dates to 1986, according to the Census ACS. That makes the typical house about 40 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Owners live in 47.2% of occupied homes, roughly 12,000 households. The median home value is $401,100, and median household income is $70,086. We use both figures to adjust labor and pricing for this page.
Cobb County had 9 hail days and 27 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 1.75 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. Cobb County also had 3 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
- The backup heat runs nonstop
- Grinding or loud buzzing from the outdoor unit
What Moves the Price
- Whether the parts warranty still covers it
- Which part needs replacing: a reversing valve, defrost board or sensor
- Finding and fixing a refrigerant leak, then recharging
- Emergency or after-hours service
- The diagnostic fee
We raised the national figures about 4% for Marietta 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 full test run
- A defrost cycle test
- Diagnosis in both heating and cooling mode
- Replacing the failed parts
- Checking refrigerant pressures
Georgia Licensing and Efficiency Rules
Georgia 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 Georgia 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.
- 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 Marietta Homeowners
What does heat pump repair cost in Marietta?
Most bills land between $180 and $880, including the service call. A typical visit is about $570. 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 Marietta
- Smyrna $200 to $960
- Mableton $180 to $880
- Sandy Springs $220 to $1,070
- Albany $160 to $800
- Stonecrest $170 to $810
- Alpharetta $250 to $1,200
- Brookhaven $240 to $1,150
- Johns Creek $250 to $1,200
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Mableton; NOAA Storm Events Database 2020-2025, Cobb County. Prices are our estimates, not contractor quotes. Updated 2026.