Furnace Repair in Dunwoody, Georgia

Dunwoody Weather and HVAC Load

Dunwoody logs 2,980 heating degree days and 1,728 cooling degree days in a normal year, based on the closest NOAA weather station. Neither season dominates in Dunwoody. That balance is a big reason heat pumps and dual-fuel systems sell well in Georgia. Count on roughly 49 nights below 32°F and 53 afternoons past 90°F in a typical year. Snowfall averages about 1 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 45,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.

Dunwoody Housing Stock

Census figures put the median build year in Dunwoody at 1984, so a typical house here has about 42 years on it. 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 12,000 households here own their home, 54.4% of the occupied total. With a median household income of $109,116 and a median home value of $579,400, local labor rates come out above the national middle in our model.

DeKalb County had 1 hail day and 28 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 1.75 inches across. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost. DeKalb County also had 3 tornado days in that period.

Symptoms Worth a Service Call

• A yellow or flickering flame instead of a steady blue one
• The burners light, then shut off a few seconds later
• The blower won't stop running
• Cold air coming out of the vents
• The thermostat calls for heat and nothing happens

What Moves the Price

• Which part failed: a flame sensor costs far less than a control board or blower motor
• The furnace's age and brand, which affect parts availability
• Night, weekend or holiday rates
• Whether the part is still under the manufacturer warranty
• The diagnostic or service call fee

We raised the national figures about 25% for Dunwoody 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

• Replacing the part that failed
• A diagnostic check
• A test run through a full heating cycle
• A safety and combustion check

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

• Ask whether the diagnostic fee comes off the repair bill.
• Have the model and serial number from the furnace label handy. Parts get ordered faster.
• Check the filter, the thermostat batteries and the breaker first. Those three cause a surprising number of no-heat calls.

Furnace Repair Questions from Dunwoody Homeowners

More HVAC Prices in Dunwoody

• Furnace Replacement in Dunwoody
• AC Installation in Dunwoody
• AC Repair in Dunwoody
• Heat Pump Installation in Dunwoody
• Heat Pump Repair in Dunwoody
• HVAC System Replacement in Dunwoody
• Ductless Mini-Split Installation in Dunwoody
• Emergency HVAC Repair in Dunwoody
• HVAC Tune-Up & Maintenance in Dunwoody
• Boiler Replacement in Dunwoody
• Air Duct Cleaning in Dunwoody

Furnace Repair Near Dunwoody

• Sandy Springs $180 to $800
• Brookhaven $200 to $860
• Roswell $190 to $830
• Valdosta $120 to $510
• Smyrna $170 to $730
• Stonecrest $140 to $600
• Marietta $160 to $670
• Albany $120 to $510