Boiler Replacement Cost in Alpharetta, Georgia
Expect to pay $7,600 to $17,200 for boiler replacement in Alpharetta, GA. Most homeowners end up near $12,900, depending on the equipment tier and how much of the old setup can be reused.
Compare Free Quotes in Alpharetta
Alpharetta Weather and HVAC Load
Alpharetta 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 Alpharetta. That balance is a big reason heat pumps and dual-fuel systems sell well in Georgia. A normal year brings 49 nights at or below freezing and 53 days over 90°F. 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 |
Alpharetta Housing Stock
The median Alpharetta home dates to 1996, according to the Census ACS. That makes the typical house about 30 years old. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Alpharetta has roughly 17,000 owner-occupied homes, or 68% of households. With a median household income of $146,581 and a median home value of $605,700, local labor rates come out above the national middle in our model.
Between 2020 and 2025, NOAA's Storm Events Database logged 11 hail days and 52 days with damaging thunderstorm winds in Fulton County. 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
- The boiler is 20 to 30 years old or more
- Fuel bills keep going up
- Some radiators stay cold
- Leaks, rust, or pressure that keeps dropping
What Moves the Price
- A new chimney liner or venting
- A combi boiler that also makes your hot water
- Pumps, zone valves and the piping around the boiler
- Fuel type: gas, oil or propane
- Condensing or non-condensing boiler
For Alpharetta we raised the national figures about 38%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- Removing the old boiler
- Startup and safety tests
- Flushing and refilling the system
- The new boiler and the piping around it
- Venting and fuel hookups
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). Plan on a mechanical permit for most replacements in Alpharetta; the contractor normally pulls it. Before you sign, ask each bidder for their Georgia license or registration number and proof of insurance. 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 for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
- For a steam system, hire a contractor who works on steam regularly.
Get Free Boiler Replacement Quotes in Alpharetta
Tell us where you are and up to three licensed local pros will get in touch. You don't have to hire any of them.
Boiler Replacement Questions from Alpharetta Homeowners
How much is boiler replacement in Alpharetta?
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 Alpharetta?
In spring or fall. Those are the slow months between heating and cooling season in Alpharetta.
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 Alpharetta
- Johns Creek $7,600 to $17,200
- Roswell $7,000 to $15,900
- Dunwoody $6,900 to $15,700
- Sandy Springs $6,800 to $15,400
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.