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Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable AC Installation Across Dunwoody
AC installation in Dunwoody typically runs $3,500 – $7,500, and the right system depends heavily on which era your home was built in. We also handle Furnace Repair in Dunwoody for homes of every age. We work in Dunwoody every week, from the 1970s ranches off Chamblee Dunwoody Road to the new teardown-rebuilds near the Dunwoody Country Club. Our crews know what hides in these crawlspaces, what the pollen does to outdoor coils each spring, and what a Dunwoody August does to an undersized system. Call (478) 606-5046 for a free estimate and a written price before any work starts.
Key takeaways:
- New AC installation in Dunwoody: $3,500 – $7,500, with a written price before we begin
- Your home’s era, 1970s original or recent teardown, changes what the install actually requires
- We handle load calculations, duct sealing, and zoning fixes, not just equipment swaps
- Every job backed by the 365-Day Done Right Promise and the Cedarwell Care Promise
Why Meadowsweet Heating and Air Alpharetta Is Dunwoody’s Preferred AC Installation Company
We’re part of the Cedarwell family of HVAC companies, founded in 2004, and our AC Installation team has worked on homes across Dunwoody for years. What that means here specifically: we’ve crawled under 1970s homes off Mt. Vernon Road and found rusted round metal ducts leaking conditioned air into the dirt. We’ve also opened up attic units in new builds near Perimeter Mall and found the builder’s equipment sized by square footage, not by an actual load calculation. That local pattern recognition changes what we recommend.
Every visit follows the Cedarwell Care Promise. A written price before any work starts. Shoe covers and drop cloths on every floor surface, because we know your kids play in that family room and your dog naps by the back door. A photo of the clean-up sent before the crew leaves. And if anything isn’t done right, the 365-Day Done Right Promise means we make it right, no runarounds.
Luis Serrano leads our team, and the people who show up at your door are background-checked, uniformed technicians who follow the C.A.R.E. values code: Clean up like it’s their own home, Ask before moving anything, Respect the family’s time and quiet hours, and Explain the price before the work.
Styles & brands we work with
AC Replacement in Dunwoody
AC Replacement in Dunwoody isn’t just pulling out an old condenser and bolting in a new one. On many of the older homes here, the original round metal ducts in the crawlspace have rusted through, quietly leaking up to 30% of conditioned air before it ever reaches a bedroom. A new high-efficiency condenser paired with those ducts will still underperform, and you’ll pay for it in July. We size replacements only after a manual J load calculation and a duct inspection, which is why our jobs hold temperature the way they’re supposed to. In Dunwoody, a full AC replacement typically runs $3,500 – $7,500 depending on system size, SEER2 rating, and whether duct work needs to go.
Replacing builder-grade units in newer homes
We replace a lot of equipment in Dunwoody’s recent teardown-rebuilds. The developer installs a builder-grade system sized by rule of thumb, the new owners move in, and the first summer brings short cycling and humidity upstairs. A proper replacement starts with measuring the actual load of each room, not the square footage of the whole house.
Duct sealing and replacement
When we find rusted metal ducts in a crawlspace, the replacement quote should include sealing or replacing them. Skipping this step means paying for a high-efficiency system that leaks like the original one did. We write the duct work into the fixed price up front, so there’s no surprise line item after the equipment is ordered.
Central Air Conditioning Installation in Dunwoody
Central Air Conditioning Installation in Dunwoody requires a system that can handle our May-to-September humidity load and a house that may be 40 years old. Most Dunwoody homes have ductwork, which makes a central system the practical choice. The part that gets overlooked is static pressure, especially when the original ducts are undersized for a newer, higher-efficiency blower. If the return side doesn’t match the airflow the new system needs, the blower motor works harder and fails early. In Dunwoody, central AC installation typically runs $3,500 – $7,500, and we specify the duct modifications in the written estimate.
Matching equipment to Dunwoody’s humidity
Dunwoody summers aren’t just hot; they’re humid. A system that’s oversized will cool the air quickly and shut off before it removes enough moisture, leaving the house sticky at 74°F. We size central systems with a load calculation that accounts for Dunwoody’s specific climate data, not a national average.
Zoning and return air in two-story homes
Many two-story homes here, both originals and rebuilds, lack a return on the upper floor. That’s why upstairs bedrooms run 6 – 8°F warmer in the summer. When we install central air, we check for missing returns and static pressure issues, and we include the fixes in the upfront price.
Trusted Brands We Service in Dunwoody
We install and service equipment from nine major brands, including Lennox, Goodman, Rheem, and York. For Dunwoody customers, we keep parts stocked that match what we actually see in this market, so we’re not waiting a week for a common board or blower motor. Whether you’re replacing a Goodman from a 2019 build or installing a new Lennox in a 1982 ranch, we can get the right unit ordered and scheduled quickly. We don’t push one brand; we match the system to the house and the load calculation.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Dunwoody Homes
- Rusted 1970s-80s ductwork in crawlspaces: The round metal ducts off Mt. Vernon Road and in neighborhoods like Dunwoody North have been humid, pollen-heavy air for four decades. Many have rusted pinholes or fully separated seams, leaking up to 30% of the cooled air.
- Teardown-rebuild systems sized by rule of thumb: Builders often put a 3-ton unit in a 3,500-square-foot house because the square footage looks right on a chart. No return on the upper floor, single-zone duct layout, and short cycling are the result.
- Pollinated outdoor coils in spring: The oaks and pines here release enough pollen in April and May to clog outdoor coils. A new high-efficiency system with tight fin spacing is especially vulnerable, so we recommend a tune-up each spring at $80 – $200 to keep it breathing.
- Slab foundations and missing returns: Homes on slab foundations in the Georgetown area and parts of Perimeter Center often have supply ducts embedded in concrete. Replacing those is a major job, which is why we check them before quoting an installation.
Pricing for AC Installation in Dunwoody, GA
Here’s what Dunwoody homeowners can expect to pay. These are the ranges we quote every day, and we put them in writing before any work begins.
| Service | Price Range in Dunwoody |
|---|---|
| AC Installation / Replacement | $3,500 – $7,500 |
| Annual Tune-Up | $80 – $200 |
What moves the number inside that $3,500 – $7,500 band: the SEER2 rating you choose, the size of the system, and whether we need to seal or replace ductwork, add a return, or correct zoning. A basic 14 SEER2 single-stage install with no duct work sits near the bottom of the range. A high-efficiency two-stage or variable-speed system with zoning fixes will run toward the top. The estimate is free, and the price we write is the price you pay. Call (478) 606-5046 for an exact quote on your home.
We Also Serve Cities Near Dunwoody
Our crews work throughout the northern Atlanta metro. If you’re in Alpharetta, Johns Creek, Lawrenceville, or Canton, we offer the same AC Installation service and the same written-price guarantee. Dispatch is coordinated from the brand’s Atlanta office, and crews serve Dunwoody locally.
Serving Dunwoody, GA - Our Local Coverage Area
We’re based in the Dunwoody area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Installation in Dunwoody
If your home is a teardown-rebuild or has any room that runs consistently hotter than the others, you need a manual J load calculation before anyone sizes a replacement. In Dunwoody, we see this constantly: newer two-story homes with a single-zone duct layout and no upper-floor return, so the bedrooms never cool. A load calculation measures each room’s heat gain and tells us the right equipment size and airflow, so you’re not paying for a system that short-cycles from day one. Call (478) 606-5046 and we’ll check your home.
Because the system was likely sized by square footage, not by how the house actually gains heat, and the duct layout probably lacks an upper-floor return or zoning. That’s the pattern we see in rebuilds near the Dunwoody Country Club and along Womack Road. The fix is zoning: separating the upper floor onto its own thermostat, often with a ducted mini split or a zone damper system. A new condenser alone won’t solve it.
The builder’s warranty in Dunwoody typically covers the compressor and heat exchanger for 5 – 10 years, but it does not cover the labor to replace them, and it rarely covers refrigerant, coils, or control boards. Many homeowners find out the hard way in the second summer. We register your equipment warranty and walk you through what’s covered before you sign anything, so you’re not surprised later.
No, not by itself. A new AC cannot fix hot rooms if the original round metal ducts in the crawlspace are rusted through and leaking 30% of the air before it reaches the register. The hot rooms are a symptom of duct failure, not just equipment age. We inspect the ducts, quote the sealing or replacement in the same written estimate as the new system, and the hot rooms actually cool once the air gets there.
SEER2 is the current federal efficiency rating standard, and it uses a more realistic test that reflects ducted installations. So yes, it matters, because the SEER2 number is what shows up on the 2025+ energy guide labels and what any rebate requires. In Dunwoody, with our hot, humid summers, a 16 SEER2 or higher system typically pays for itself over the equipment’s life. Call (478) 606-5046 for a free estimate and we’ll show you the numbers on your specific home.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air Alpharetta. Serving Dunwoody families with written prices, clean floors, and systems that hold temperature.