HVAC Repair in Stonecrest, GA
Homes here need heat from November through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers DeKalb County will get in touch.
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It takes about a minute.
Eleven months of work, then a storm knocks out the power
Your system in Stonecrest is on almost all year. Heat from November through April, cooling from May through September, only one month off. Winter nights average 35°F, cold enough that the furnace cycles on and off through the night. Summer afternoons average 88°F, and the air conditioner runs long stretches to keep up. That much runtime wears on the same parts every year, the igniter, the capacitor, the contactor.
DeKalb County also sees wind. Ten years of records show 132 damaging wind events against just 3 winter storms, and statewide, close to a third of households lost power for at least a day in 2024. When power drops and comes back, most systems restart on their own, but a surge from the outage can be what finally takes out a weak capacitor or a control board already near the end. If your heat or air stopped working after the lights flickered, that is often where to look.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 35°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $180 a year off heating and cooling for a typical DeKalb County home.
Estimates for a typical DeKalb County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Georgia fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
Georgia requires HVAC contractors to hold a state license.
The State Construction Industry Licensing Board tests contractors before granting this license, and the license is on record with the state. It belongs to the contractor, not to any one job, so the same license that qualifies someone to repair a furnace in Fulton County qualifies them to repair one in DeKalb County.
Because Georgia licenses at the state level, that license is what stands behind the repair on your system. Whoever opens or reconnects a gas line, or works on the parts of your system that hold refrigerant, is doing the part of the job where a mistake matters most, and it is this same state license, and the board that issued it, that answers for how that work was done.
Source: Georgia Secretary of State
- Why is my heat not working?
- Check the thermostat first, since a dead battery or a setting bumped to cool will stop heat with nothing wrong in the furnace. If the thermostat looks right, check the breaker and the furnace switch, the one that looks like a light switch near the unit. Gas furnaces will also shut down if the pilot or igniter fails to light, and yours may show an error code by the flashing light behind the front panel. With winter nights here dropping to 35°F on average, a furnace that will not start needs a contractor out quickly rather than left overnight.
- Why is my system running but not cooling the house?
- Start with the air filter. A filter clogged with dust blocks airflow across the coil, and the coil can ice over so the air coming out feels weak or barely cool. Check that the outdoor unit is not blocked by leaves, grass clippings, or anything sitting close against it, since it needs open airflow to release heat from the house. If the filter is clean and the outdoor unit is clear but the air still is not cold, the system likely needs refrigerant or has an electrical problem a contractor will need to diagnose.
- What can I check before calling for HVAC repair?
- Check the thermostat settings and batteries, the breaker for the system, and the air filter, since these cause a real share of no heat and no cooling calls. Look at the outdoor unit for anything blocking it, and make sure vents around the house are open and not blocked by furniture or rugs. If the system runs but nothing changes after these checks, a contractor will need to look at the equipment itself. Keep in mind Georgia requires HVAC contractors to hold a state license, so ask before hiring.


