“How much is a new AC going to cost me?” is the first question every homeowner asks, and most HVAC websites dodge it. Here’s a straight answer for homes in Winder, Gwinnett County, Athens and the rest of Northeast Georgia — plus the factors that move the number and how financing works. For an exact figure, we’ll come out and give you a free written estimate: call 678-203-6336.
Typical AC replacement cost in Northeast Georgia
For a standard single-family home in our area, replacing a complete split system (outdoor unit plus indoor coil or air handler) most often lands in these ranges, installed:
- Basic single-stage AC with matching coil: the lowest-cost route, usually chosen when a gas furnace stays in place.
- Two-stage or heat pump system: a mid-range investment with noticeably lower power bills and better humidity control.
- Variable-speed inverter system (such as the GE side-discharge NS18H): the highest efficiency and quietest operation, and the best long-term operating cost.
Across those tiers, most full-system replacements we perform fall somewhere in the mid four figures to low five figures. Anyone quoting a firm price over the phone without seeing the house is guessing — the items below can swing the total by thousands.
What changes the price
- Size (tonnage). A 1,600 sq ft ranch in Winder needs a very different system than a 3,800 sq ft two-story in Suwanee. We run a Manual J load calculation instead of copying the old unit’s label.
- Efficiency rating (SEER2). Higher efficiency costs more up front and less every month. Georgia Power rates make the payback on a variable-speed system faster than most people expect.
- AC only vs. full system. Replacing just the outdoor unit on a 15-year-old air handler is a false economy; mismatched equipment loses efficiency and warranty coverage.
- Ductwork. Leaky, undersized or crushed ducts are common in attics across Gwinnett and Barrow County. Duct testing and sealing may be the best money you spend.
- Electrical and access. Panel upgrades, new disconnects, line-set replacement, attic or crawlspace access and pad or stand work add labor.
- Thermostat and indoor air quality add-ons. Smart thermostats, media filters, UV lights and dehumidifiers are optional but popular.
HVAC financing in Winder & Gwinnett County
Most of our customers finance their new system. We offer financing with approved credit, including promotional plans that let you spread the investment into a predictable monthly payment — often close to what the old system was costing in extra electricity and repairs. Applying takes a few minutes and doesn’t obligate you to anything. Ask about current promotions and rebates too; manufacturer and utility incentives change through the year.
Repair or replace?
Replace when the system is 12–15+ years old, uses R-22 refrigerant, needs a compressor or coil, or the repair estimate is more than a third of a new system. Repair when the unit is under about 10 years old and the fix is a capacitor, contactor, fan motor or drain issue. Either way, our technician gives you both numbers on the same visit so you can decide with real information. Need it fixed tonight? See 24/7 emergency AC repair.
What’s included in an American Comfort installation
- Manual J load calculation and written good / better / best proposal
- Removal and proper recovery of the old equipment and refrigerant
- New pad or stand, line-set flush or replacement as needed, new drain line and float switch
- Permit, inspection and manufacturer warranty registration handled for you
- Full commissioning: refrigerant charge, airflow and static pressure checked and documented
- 24/7 support after the install and optional USA Club maintenance plan
AC replacement cost FAQs
Is the estimate really free?
Yes. Replacement estimates are free and in writing, with no obligation. Diagnostic visits for repairs carry a diagnostic fee that is quoted when you book.
How long does an AC replacement take?
Most complete system replacements are finished in one day. Jobs involving ductwork, electrical upgrades or attic air-handler relocation can take two.
Which brands do you install?
We are a GE Authorized HVAC Pro and also install Bryant, Lennox, Goodman and other major brands. We match the brand and tier to your home and budget rather than pushing one line.
Do you offer financing with monthly payments?
Yes, with approved credit. Promotional plans and terms vary; your comfort advisor will walk you through current options during the free estimate.
Get your free AC replacement estimate: call 678-203-6336 or request it online.

