Georgia Cost GuideHow much does a full HVAC system replacement or installation cost in Georgia?
Full system replacement in Georgia: typically $6,850 to $10,400+, the middle half of the figures posted by 10 Georgia HVAC companies, collected September and October 2026.
A full replacement puts in new outdoor and indoor equipment at the same time. Here is the range Georgia HVAC companies publish for it, what moves the price and what to ask before you sign.
What a full HVAC system replacement or installation costs in Georgia
We checked 735 Georgia HVAC company websites.
Full HVAC system replacement cost
$6,850 to $10,400+
Prices from 10 Georgia HVAC companies
This is a typical range, not a quote. The sections below explain what moves the price for this job. The dot marks the middle price, and a + means some businesses charge more.
What the job involves
A full system replacement swaps both halves of your heating and cooling at once: the outdoor unit and the indoor equipment it works with. That is different from an AC unit installation, which usually replaces the cooling equipment and keeps the furnace you already have.
One reason to replace both halves together is that the new outdoor and indoor equipment can be matched to each other. The usual pairings are an air conditioner with a gas furnace, or a heat pump with an air handler. Your city or county may require a permit and an inspection for the work.
What's usually included
- Setting the new outdoor unit and the matching indoor unit
- Connecting the new equipment to power, refrigerant lines and ductwork
- Starting the system and checking that it heats and cools
What moves the price
- Replacing both halves or one
- If your furnace or air handler is fairly new, or your outdoor unit is, a quote for only the other half may make more sense. Ask whether both really need replacing.
- Switching system types
- Going from a furnace to a heat pump, or the other way, can add new wiring, a new gas line or vent changes to the cost of the equipment itself.
- Working out the size
- Some companies measure the house, its windows and its insulation to choose the size, and others match the old unit. The measured approach can land on a different size, and with it a different price.
- Ductwork at the unit
- New equipment sometimes needs the duct connections at the unit reshaped or resized to fit, even when the rest of the ducts stay as they are.
- Planned or after a breakdown
- A replacement planned ahead leaves time to compare several quotes, while one done after a breakdown in peak season often leaves less room to shop around.
- Removal and permit
- Hauling away the old equipment and pulling the permit are in some quotes and extra in others, which can make two prices look further apart than they are.
Getting a quote
Questions to ask each HVAC company before you compare prices:
- Which outdoor unit and which indoor unit are you quoting, by model, and were they made to work together?
- Did you size the equipment from measurements of this house, or from the old unit?
- Is hauling away the old equipment, the permit and a new thermostat in this price?
- Will any ductwork at the unit change, and is that in the price?
- Do the outdoor and indoor units carry the same equipment warranty, and how long is your labor covered?
Get an HVAC quote
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Where this number comes from
We collect these prices with our own crawler, which reads the public websites of Georgia HVAC companies and follows each site's robots.txt rules. It has read 735 of their websites so far. Each range is the middle half of the prices those businesses post, collected September and October 2026.
A price list is what a business says it charges; a cost guide is a business's own estimate of what the job usually runs in Georgia. We never name the businesses behind a range. How we collect and check HVAC prices.
| Job | Businesses that post a price |
|---|---|
| Full system replacement | 10 (1 price list, 9 cost guides) |
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