Emergency HVAC Repair in Marietta, Georgia
Most emergency HVAC repair bills in Marietta come in between $260 and $1,040, 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
- A burning smell or smoke coming from the equipment
- No cooling during a heat wave
- The carbon monoxide alarm is going off
- Water from the system leaking into the living space
What Moves the Price
- How far the tech has to drive
- The repair itself
- The after-hours, weekend or holiday surcharge
- Whether the part is on the truck or has to be ordered
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 temporary or permanent fix
- A safety check before the tech leaves
- Fast dispatch
- On-site diagnosis
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
- If the CO alarm goes off, get everyone outside and call 911 or the gas company before you call an HVAC company.
- Keep space heaters away from curtains and bedding, and never heat the house with a gas oven.
- Ask what the emergency fee is before the truck is sent.
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Emergency HVAC Repair Questions from Marietta Homeowners
What does emergency HVAC repair cost in Marietta?
Most bills land between $260 and $1,040, including the service call. A typical visit is about $690. Night and weekend calls cost more.
What counts as an HVAC emergency?
No heat in freezing weather, no cooling in dangerous heat (especially with seniors, babies or someone with a medical condition in the house), a gas smell, a CO alarm, or an electrical burning smell.
How much more does emergency HVAC service cost?
After-hours service usually adds $100 to $300 to the bill, or 1.5 to 2 times the normal hourly rate. It depends on the company and the time of day.
Emergency HVAC Repair Near Marietta
- Smyrna $280 to $1,130
- Mableton $260 to $1,040
- Sandy Springs $310 to $1,260
- Albany $240 to $940
- Stonecrest $240 to $950
- Alpharetta $350 to $1,410
- Brookhaven $340 to $1,350
- Johns Creek $350 to $1,410
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.