Boiler Replacement Cost in Dunwoody, Georgia
Expect to pay $6,900 to $15,700 for boiler replacement in Dunwoody, GA. Most homeowners end up near $11,700, depending on the equipment tier and how much of the old setup can be reused.
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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.
| Heating degree days / year | 2,980 |
|---|---|
| Cooling degree days / year | 1,728 |
| Nights at or below 32°F | 49 |
| Days above 90°F | 53 |
| Average low / high | 51.1°F / 71.8°F |
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.
When Replacement Makes Sense
- The boiler is 20 to 30 years old or more
- Leaks, rust, or pressure that keeps dropping
- Fuel bills keep going up
- Some radiators stay cold
What Moves the Price
- A combi boiler that also makes your hot water
- Pumps, zone valves and the piping around the boiler
- Fuel type: gas, oil or propane
- A new chimney liner or venting
- Condensing or non-condensing boiler
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
- Removing the old boiler
- Venting and fuel hookups
- Startup and safety tests
- Flushing and refilling the system
- The new boiler and the piping around it
Georgia Permits, Efficiency Rules and Rebates
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). Equipment replacements in Dunwoody generally need a mechanical permit, and a reputable contractor will pull it for you. Ask for their Georgia license or registration number and a certificate of insurance with the quote. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- A combi boiler frees up space and replaces your water heater.
- Ask your gas or oil company about rebates on condensing boilers.
- Ask for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
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Boiler Replacement Questions from Dunwoody Homeowners
How much is boiler replacement in Dunwoody?
Plan on $6,900 to $15,700, with most jobs near $11,700. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule boiler replacement in Dunwoody?
In spring or fall. Those are the slow months between heating and cooling season in Dunwoody.
Can I replace a boiler with a heat pump?
Yes, with an air-to-water heat pump or a ductless system. The radiators may need upgrading, because heat pumps run cooler water than boilers.
How long does a boiler last?
A cast-iron boiler can last 25 to 35 years. A modern condensing boiler usually lasts 15 to 20 with yearly service.
Boiler Replacement Near Dunwoody
- Sandy Springs $6,800 to $15,400
- Brookhaven $7,300 to $16,500
- Roswell $7,000 to $15,900
- Valdosta $4,300 to $9,700
- Smyrna $6,200 to $14,100
- Stonecrest $5,000 to $11,500
- Marietta $5,700 to $13,000
- Albany $4,300 to $9,800
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Atlanta Peachtree Airport; NOAA Storm Events Database 2020-2025, DeKalb County. Prices are our estimates, not contractor quotes. Updated 2026.