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Before
AfterAC Installation in Alpharetta, GA
A new AC installation in Alpharetta typically runs $6,500 – $14,500 depending on home size, efficiency rating, and ductwork condition, with most mid-size homes landing around $8,000 – $11,000. Dalton Heating & Air does our ac repair installation services the same way we do repair work: a written price goes in your hand before anything gets unboxed, and your system is covered by our 365-Day Done Right Promise for a full year. Call (229) 537-2086 and you’ll reach a live person who can schedule a free in-home estimate, not a voicemail tree.
If your current system is getting patched up more than it’s worth, it’s time to look at replacement seriously. Our AC Repair & Installation in Alpharetta page explains the full scope of what we handle, from compressor swaps to full-system changeouts. This page is about installation specifically: what it costs, how we do it, and why Alpharetta homeowners call us when they’re finished with half-answers.
Key Takeaways
- Full-system AC installation in Alpharetta runs $6,500 – $14,500; most homes fall between $8,000 and $11,000.
- You get a written price before any work starts, on every job, no exceptions.
- Every install includes a 365-Day Done Right Promise and a free second visit if anything fails within the year.
- We install and service Lennox, Goodman, Rheem, and York systems, plus five other major brands.
- Call (229) 537-2086 for a free estimate. A live person answers, 24/7.
When You Need AC Installation
Not every cooling problem calls for a new unit. But in Alpharetta’s climate, where June through September regularly pushes 90°F with humidity to match, there’s a point where AC Replacement makes more sense than repair money. Here’s what tells us replacement is the right call:
- Your system is 12 – 15 years old and the compressor failed. A compressor replacement on a decade-old unit is often $2,500 – $3,500 to keep a system alive that’s already past its expected service life. That money is usually better placed toward a new install.
- You’re on your third or fourth major repair in two years. If refrigerant leaks, capacitor failures, or blower motor issues keep stacking up, you’re financing a dying system one service call at a time.
- Your energy bills climb every summer while the house struggles to hold temperature. Older units lose efficiency as coils corrode and refrigerant slowly leaks. A modern 16 – 17 SEER2 install can cut cooling costs 20 – 30% over a 10 SEER unit from the mid-2000s.
- The system still runs R-22 refrigerant. R-22 was phased out of production in 2020, which means every pound now costs hundreds of dollars. Homes in Windward, Crabapple, and downtown Alpharetta with original R-22 systems are the most common installation jobs we quote.
- Rooms are wildly uneven in temperature. If your upstairs feels like July and your downstairs feels like October, the system may be undersized or the ductwork may be failing. A correct install solves both.
- You’re planning to stay in the home 5+ years. A new high-efficiency install pays for itself over time and you get the warranty instead of inheriting another homeowner’s worn-out unit.
Our AC Installation Process
Here’s exactly how a Dalton Heating & Air installation goes from first call to final walkthrough. No surprises between steps.
- You call and we schedule the free estimate. A live person answers (229) 537-2086 and puts you on the schedule for a time that works, including evenings and weekends. We show up inside the stated window. That’s part of The Garrison Code, and it’s not optional for us.
- We do a full load calculation, not a guess. A technician measures your home’s square footage, ceiling height, window exposure, insulation level, and duct condition. We don’t size a unit off a rule of thumb. In Alpharetta’s hot, humid summers, an oversized unit short-cycles and leaves humidity in the house. An undersized unit can’t hold 72°F in August. The load calculation is what keeps either from happening.
- You get a written price for the entire job. Equipment, labor, refrigerant, new line set if needed, permits, disposal of the old unit, everything. The number does not change at the door. This is the no-hassle upfront pricing standard every Garrison Partners location operates under, and it’s been our way since 2003.
- We install the system and pull permits. Our technicians are background-checked, uniformed, and factory-trained to install and service nine major brands, including Lennox, Goodman, and Rheem. The crew runs new copper lines where needed, sets the unit on a level pad, connects the electrical properly, and charges the refrigerant to the manufacturer’s exact spec.
- We test, clean, and walk you through the system. We run the unit in both heating and cooling, measure the temperature split at the supply and return to confirm proper charge, and verify airflow at every register. Then we clean the work area, haul off the old equipment, and show you how to use the thermostat and change the filter yourself.
- Your 365-Day Done Right Promise starts that day. If anything about the installation isn’t done right in the first year, we come back and fix it at no charge. That’s in writing, not implied.
AC Installation Pricing in Alpharetta
Alpharetta installation pricing follows a pretty predictable set of variables. Here’s the honest range so you can budget before we even step in the door:
| Installation Scope | Typical Price Range |
|---|---|
| Basic 14 SEER2 single-stage system, 2 – 2.5 ton, accessible attic/mechanical room | $6,500 – $8,500 |
| Mid-efficiency 16 SEER2 two-stage system, 3 – 4 ton, includes new pad and line set | $8,000 – $11,000 |
| High-efficiency 18+ SEER2 variable-speed system with smart thermostat | $11,000 – $14,500 |
| Full ductwork replacement (add-on to any install) | $4,000 – $9,000 depending on square footage and accessibility |
What moves the number:
- Ton size. A 3,500 sq ft two-story in Windward needs more tons than an 1,800 sq ft ranch in Hollyberry. More tons, more equipment cost.
- SEER2 rating. Minimum legal efficiency in 2025 is 14.3 SEER2 in Georgia, but units up to 20 SEER2 cost more upfront and save more every month. The sweet spot for most Alpharetta homes is 15 – 17 SEER2.
- Ductwork condition. If your ducts are leaky, crushed, or original to a 1980s build, a new unit alone won’t fix comfort. We’ll tell you straight if ducts need repair or replacement before we quote an install.
- Access. Attic installs in tight trusses or outdoor units that need a crane lift run higher than ground-level, walk-up installs.
- Brand and warranty. A Goodman base model costs less than a Lennox variable-speed flagship, but both come factory-backed. We don’t push you toward a more expensive brand to pad the invoice. We quote what fits your home and your budget.
Every quote is free, and the price is locked in writing before any work starts. Call (229) 537-2086 and we’ll schedule the estimate, walk the home, and get you a number you can actually plan around.
FAQs – AC Installation
How much does AC installation cost in Alpharetta?
AC Repair & Installation Near Me in Alpharetta, GA typically costs $6,500 – $14,500, with most homes falling between $8,000 and $11,000 for a complete system replacement including labor, refrigerant, and disposal of the old unit. Your exact number depends on home size, SEER2 rating, duct condition, and access. Call (229) 537-2086 for a free in-home estimate with a written price.
Is it cheaper to repair or replace my AC?
As a rule, if the repair costs more than 30 – 35% of the price of a new system and the unit is over 12 years old, replacement is the smarter call. A $2,800 compressor swap that buys you two more summers on a 2009 unit rarely beats putting that money toward a new install with a full warranty. Our AC Repair & Installation team will give you the repair quote and the replacement quote side by side and let you decide with real numbers, not a sales pitch.
How long does an AC installation take?
A standard full-system changeout in Alpharetta takes one day, usually 6 – 8 hours, including removal of the old equipment and cleanup. Jobs that require ductwork replacement or major electrical work can run two days. We’ll tell you the timeline before work starts, and it’s part of the written quote.
Do you install all the major AC brands?
We install and service nine major residential brands, including Lennox, Goodman, Rheem, and York. Our technicians are factory-trained on each of them, which means we pull proper spec sheets, charge refrigerant to manufacturer numbers, and register warranties correctly the first time. We don’t just “wing it” on any brand.
Can you install an AC same week in Alpharetta?
In most cases, yes, especially outside the June-through-August peak. During summer heat waves in Alpharetta, lead times stretch to 7 – 10 days because every HVAC company in Fulton County is booked out. Call (229) 537-2086 and we’ll give you the earliest available slot honestly. If your AC is out and it’s 90° outside, tell us that first and we’ll see how fast we can move you up.
Is a new AC installation covered by a warranty?
Yes on two levels. The equipment carries a manufacturer warranty, typically 10 years on the compressor and major parts when registered properly, which we do for you. And our workmanship carries the 365-Day Done Right Promise: if anything about our installation isn’t done right within the first year, we come back and fix it at no charge. If a repair fails in that window, the second visit is free too. That’s The Garrison Standard, and it’s in writing on every job.
Call Dalton Heating & Air Alpharetta for a Straight Answer
Whether you’re in Windward, Crabapple, downtown Alpharetta, or anywhere else in the 30004/30005 area, the process starts the same way: call (229) 537-2086, tell us what’s going on, and we’ll put a real person on the line who can set up a free estimate. Written pricing, on-time arrival, background-checked technicians, and a full-year guarantee on every install. That’s the job, and we’ve been doing it since 2003 as a Garrison Partners company held to The Garrison Standard. From our home base in Alpharetta, we handle installations in Milton, Roswell, Cumming, Johns Creek, and nearby communities too.
Written by Marco Benitez, Owner at Dalton Heating & Air Alpharetta, serving Alpharetta.