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AfterFurnace Replacement in Sandy Springs, GA
Furnace replacement in Sandy Springs typically costs between $4,200 and $9,800 depending on the size of your home, the efficiency rating you choose, and how much ductwork modification the job requires. Most replacements in this area take one full day, and the new system is usually heating the house by evening. At Dalton Heating & Air Sandy Springs, every replacement starts with a written price, a load calculation, and an explanation of what is being installed and why. Call us at (478) 400-5908 if your current furnace is past saving.
We handle furnace replacement as a core part of our Heating & Furnace in Sandy Springs work, which means your replacement is backed by the same Garrison Standard we have operated under since 2003. The price goes in writing before any work starts. The install crew arrives inside the stated window. And the work carries a 365-day written guarantee. If something is not right in that first year, we come back and fix it at no charge. That is the deal, and it does not change based on how busy the season gets.
We are a Garrison Partners company, which means we are held to a standard most contractors do not even put on paper. Every replacement job includes a load calculation sized to your house, not a rule-of-thumb guess. We service and install major brands including Carrier, Rheem, and American Standard. The installers are background-checked, uniformed, and trained to factory specifications. When they arrive, you will know their name before they step out of the truck.
When You Need Furnace Replacement
Not every furnace problem calls for a replacement. Some are heating repairs that cost a few hundred dollars and keep the old unit running for several more winters. But there is a point where repair stops making sense. These are the situations where we tell Sandy Springs homeowners to think hard about replacing the unit:
- The heat exchanger has failed or cracked. This is the metal chamber that separates burned gas from the air you breathe. A cracked heat exchanger is a carbon monoxide risk and a repair that often costs nearly as much as replacement. In older Sandy Springs homes with 15-plus-year-old furnaces, this is the most common reason we recommend replacement.
- The furnace is 15 to 20 years old and the repair estimate exceeds $800. Putting $900 into a 1998 furnace is putting money into a system with a year or two left. Most furnaces in this area live 15 to 20 years. Beyond that, parts get scarce and efficiency drops.
- The blower motor or control board has failed and the unit is out of warranty. Replacing both can run $1,200 to $2,000 on a system that is already inefficient. That is half the cost of a new entry-level furnace.
- Your gas bills have climbed noticeably over the last two winters without a change in thermostat settings. Older furnaces in Sandy Springs often run at 70% to 80% efficiency. A new 96% AFUE unit can cut gas consumption meaningfully, especially in January and February when north Georgia nights drop below freezing.
- The house cannot hold a consistent temperature. Rooms in the back of the house stay cold, the thermostat runs constantly, and the system short-cycles. This often means the furnace is oversized for the space or the heat exchanger is failing. Replacement with a correctly sized unit solves both.
- You are repairing the same part twice in three years. If the inducer motor failed in 2022 and again this winter, the furnace is telling you something. The next failure usually comes at the worst possible time.
If you are on the fence, we give you a straight answer. We do not make money telling you to replace a furnace that has good years left. When a repair is the right call, we say so and put the repair price in writing. When replacement is the honest recommendation, we explain why and show you the numbers.
Our Furnace Replacement Process
Here is how a replacement works with Dalton Heating & Air Sandy Springs, step by step:
- Call or reach us online. A live person answers at (478) 400-5908 any hour of any day. We schedule a load calculation visit at a time that works for you, including evenings and weekends.
- We do a load calculation on your house. Not a square-footage guess. We measure the conditioned space, check window and insulation levels, and factor in the construction of your home. This tells us the exact heating capacity the new furnace needs. Oversized furnaces short-cycle and waste gas; undersized ones never get the house warm. We size it right the first time.
- We walk you through two or three options with written prices. You will see the total installed cost for each system before you decide anything. We explain the difference between 80% and 96% efficiency in plain English: a 96% AFUE furnace turns 96 cents of every gas dollar into heat for the house. A higher-efficiency unit costs more up front and makes it back on gas bills over time. We help you figure out which makes sense for your home and how long you plan to live there.
- We install the furnace on the scheduled day. The crew arrives inside the stated window, in uniform, and works clean. Floors get covered, the area gets vacuumed when we are done, and the old unit is hauled away. Most replacements finish in one day. Some larger homes with complex ductwork take a day and a half, and we tell you that up front if it applies to your job.
- We test and walk you through the new system. Before we leave, the install lead runs the furnace through a full cycle, checks gas pressure, verifies the temperature rise across the heat exchanger, and shows you how to use the new thermostat if one is included. You get a written guarantee for the full installation, and that guarantee holds for 365 days.
Every replacement we install carries the same non-negotiable terms of The Garrison Code: arrive inside the window, price in writing before starting, do the job by the book, leave the site clean, and stand behind the work for a full year. Marco Benitez personally holds the Sandy Springs team to that standard on every job.
Furnace Replacement Pricing in Sandy Springs
Furnace replacement pricing in Sandy Springs breaks down by efficiency tier and system size. These are installed prices including equipment, labor, permits, haul-away of the old furnace, and a full year of warranty coverage through our 365-Day Done Right Promise:
| Furnace Type | Efficiency (AFUE) | Installed Price Range |
|---|---|---|
| 80% single-stage furnace | 80% | $4,200 – $5,600 |
| 96% two-stage furnace | 96% | $5,800 – $7,400 |
| 96%+ modulating furnace | 97-98% | $7,200 – $9,800 |
Those numbers are for typical single-family homes in Sandy Springs between 1,800 and 3,200 square feet. Larger homes, finished basements, or ductwork that needs modification will push the number higher. We tell you exactly where your job falls before you sign anything. The price in writing is the price on the final bill. There is no add-on for a part that “was not in the estimate,” no surprise disposal fee, no phantom line item. The Garrison Standard does not allow it.
What moves the price most:
- Efficiency. An 80% furnace is the cheapest to install. A 96% two-stage unit costs more but burns less gas per winter. At current natural gas rates in north Georgia, most Sandy Springs homeowners with 20-year-old furnaces recover the difference in 5 to 8 years through lower bills.
- System size. A 2,800-square-foot house needs more heating capacity than a 1,500-square-foot ranch. More BTUs means a larger, more expensive furnace cabinet and blower.
- Ductwork condition. If your ducts are leaking or undersized, we quote the ductwork repair or modification as a separate line item so you know exactly what you are paying for.
- Brand. We install Carrier, Rheem, American Standard, and Daikin, among others. Entry-level models from any of these brands land in the same general range. High-efficiency modulating units cost more regardless of brand.
Every estimate is free. The number you get is the number you pay. Call (478) 400-5908 and we will schedule a load calculation and give you a written replacement quote, usually within a day or two of the visit.
FAQs – Furnace Replacement
How much does furnace replacement cost in Sandy Springs, GA?
Furnace replacement in Sandy Springs runs $4,200 to $9,800 installed, with most homes landing between $5,500 and $7,200 for a 96% efficiency two-stage furnace. The exact price depends on home size, efficiency tier, brand, and any ductwork work needed. The estimate we give you is free, written, and final. Call (478) 400-5908 to get a number specific to your house.
Is it cheaper to repair or replace my furnace?
As a rule of thumb, if the repair costs more than one-third of the new furnace price and the unit is over 15 years old, replacement is the better financial move. A $900 repair on an 18-year-old furnace with an 80% efficiency rating usually does not make sense compared to putting that money toward a new 96% unit. We will give you the repair price and the replacement price side by side so you can decide with real numbers.
Can you install my new furnace the same week I call?
In most cases, yes. During our busiest winter weeks, installation may fall 3 to 5 days after the load calculation visit, but we tell you the date before you pay anything. If your furnace is down completely and the house is dangerously cold, we prioritize emergency replacements and can often get a crew out the same day. Call (478) 400-5908 and ask what this week looks like.
Will I need new ductwork when I replace my furnace?
Often not, but it depends on the condition and sizing of your existing ducts. If the current ducts are in good shape and properly sized for the new system, we leave them alone. If they are leaking, undersized, or in poor condition, we include that work as a separate written line item so you see it clearly. The load calculation and duct inspection tell us which situation you are in before we quote the job.
What brands of furnaces do you install?
We install and service nine major residential HVAC brands, including Carrier, American Standard, Rheem, and Daikin. Our installers are factory-trained on each brand we sell, and the equipment carries the manufacturer’s warranty in addition to our 365-day written guarantee on the installation itself. We will recommend a brand and model that fits your budget and house size, and we will show you the written price for each option.
Get a Written Furnace Replacement Estimate in Sandy Springs
If your furnace is failing, leaking carbon monoxide, or just costing too much to keep alive, call Dalton Heating & Air Sandy Springs at (478) 400-5908. We answer the phone with a live person, every hour of every day. We will schedule a load calculation, walk you through your options with real written numbers, and install the furnace on the day we say we will. The installment is guaranteed in writing for a full year through the 365-Day Done Right Promise. Marco Benitez and the team in Sandy Springs are ready to get your house warm and keep it that way.
Written by Marco Benitez, Owner at Dalton Heating & Air Sandy Springs, serving Sandy Springs.