Boiler Replacement Cost in Johns Creek, Georgia

Our 2026 estimate for boiler replacement in Johns Creek, GA is $7,600 to $17,200. That puts Johns Creek 38% above the national average, mainly because of higher incomes and home values, which push labor rates up.
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Johns Creek Weather and HVAC Load
In a normal year, Johns Creek racks up 2,980 heating and 1,728 cooling degree days (NOAA 1991-2020 normals). Neither season dominates in Johns Creek. That balance is a big reason heat pumps and dual-fuel systems sell well in Georgia. On average, Johns Creek gets 49 freezing nights and 53 days above 90°F per year. 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 |
Johns Creek Housing Stock
The median Johns Creek home dates to 1995, according to the Census ACS. That makes the typical house about 31 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. About 23,000 households here own their home, 79.7% of the occupied total. With a median household income of $160,185 and a median home value of $583,700, local labor rates come out above the national middle in our model.
Fulton County had 11 hail days and 52 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. Fulton County also had 3 tornado days in that period.
When Replacement Makes Sense
- Some radiators stay cold
- The boiler is 20 to 30 years old or more
- Fuel bills keep going up
- The pilot or ignition keeps failing
What Moves the Price
- A combi boiler that also makes your hot water
- A new chimney liner or venting
- Fuel type: gas, oil or propane
- Pumps, zone valves and the piping around the boiler
- Condensing or non-condensing boiler
We raised the national figures about 38% for Johns Creek 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
- Venting and fuel hookups
- Removing the old boiler
- The new boiler and the piping around it
- Flushing and refilling the system
- Startup and safety tests
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 Johns Creek 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
- For a steam system, hire a contractor who works on steam regularly.
- A combi boiler frees up space and replaces your water heater.
- Ask your gas or oil company about rebates on condensing boilers.
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Boiler Replacement Questions from Johns Creek Homeowners
How much is boiler replacement in Johns Creek?
Plan on $7,600 to $17,200, with most jobs near $12,900. 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 Johns Creek?
In spring or fall. Those are the slow months between heating and cooling season in Johns Creek.
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.
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.
Boiler Replacement Near Johns Creek
- Alpharetta $7,600 to $17,200
- Roswell $7,000 to $15,900
- Dunwoody $6,900 to $15,700
- Warner Robins $4,800 to $10,900
- Mableton $5,700 to $13,000
- Sandy Springs $6,800 to $15,400
- Albany $4,300 to $9,800
- South Fulton $5,400 to $12,300
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, Fulton County. Prices are our estimates, not contractor quotes. Updated 2026.