Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateHVAC Company in Dunwoody, GA
Dalton Heating & Air handles HVAC work across Dunwoody, GA, and this page is the quick way to understand what that looks like here. Dunwoody’s housing stock runs heavily to 1970s and 1980s colonials and brick-front traditionals, many still running original ductwork and equipment that predates current efficiency standards. Combined with Georgia humidity, heavy spring pollen, and mature tree canopies over most lots, Dunwoody jobs tend to involve retrofits, duct sealing, and dehumidification more than brand-new construction. We answer the phone around the clock at (478) 400-5908, and every job starts with a written price.
Why Dunwoody Homes Are Different
Most of Dunwoody’s single-family homes were built between the 1970s and early 1990s. That means crawlspaces or slab foundations, attic or basement mechanical rooms, and ductwork that has been absorbing Georgia humidity for three or four decades. We routinely find return-air sizing that was marginal when the house was new and is now undersized for the load. Homes in the Georgetown area, in particular, come up often: original Carrier and Trane units from the 1980s paired with undersized returns in upstairs bedrooms, producing chronic hot spots in second-floor rooms that never quite cool in August.
The tree canopy is both a blessing and a variable. Heavily shaded lots reduce direct solar gain but dump pollen, seed pods, and leaf debris into outdoor condensers. HOA landscaping norms in Dunwoody can also restrict where a new outdoor unit can sit, how it’s screened, or whether a pad can extend past a certain footprint. Add the high humidity from late spring through early fall, and many Dunwoody systems need dehumidification or whole-home IAQ work that isn’t part of the conversation in drier cities.
Styles & brands we work with







Our Main Dunwoody Services
Most Dunwoody calls fall into one of three categories: cooling failures during summer, heating failures during the short but real cold snaps, and heat pump replacements when an aging system gives out. Each service has its own Dunwoody page with full pricing and detail.
AC Repair in Dunwoody
Dunwoody AC failures rarely announce themselves early. A condenser packed with pollen, a failing capacitor, or low refrigerant from a pinhole leak all show up as a house that can’t hold 72 degrees on a 94-degree afternoon. Our technicians start with a written diagnostic, identify the failing component, and quote the repair before touching a tool. For homes with original 1980s ductwork, we check static pressure and return sizing, since fixing the unit without addressing airflow just moves the problem a few weeks down the road. Full detail on AC Repair in Dunwoody.

Heat Pump Installation in Dunwoody
Dunwoody’s mild winters make a heat pump a sensible replacement for many older split systems. A properly sized heat pump handles both cooling and the moderate heating load, and current models run efficiently enough to matter on a Georgia power bill. We size the system with a Manual J load calculation, not a rule of thumb, because two Dunwoody homes on the same street can need different capacities depending on tree shade, window count, and insulation. Install date is set in writing, and the full price is on paper before equipment is ordered. Full detail on Heat Pump Installation in Dunwoody.

Furnace Repair in Dunwoody
Dunwoody furnaces get light use compared to northern systems, but that creates its own failure pattern. Ignition components, flame sensors, and control boards degrade from disuse and humidity, so the first overnight freeze is when furnaces fail. We diagnose the specific fault, quote the repair in writing, and carry common control parts on the truck so most repairs finish in one visit. The repair guarantee is written for a full year, and if the same fault returns, so do we at no charge. Full detail on Furnace Repair in Dunwoody.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Dunwoody
Our technicians are factory-trained on nine major residential brands, and in Dunwoody that means a lot of legacy Carrier, Trane, and Rheem equipment from the 1980s and 1990s, plus newer Daikin and Bryant systems. We stock common control boards, capacitors, and igniters locally, which cuts turnaround on most repairs. See the full line on our brands page.
See the difference
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After
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AfterPricing for HVAC Company in Dunwoody, GA
| Service | Typical Range in Dunwoody |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Heat Pump Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
What pushes a Dunwoody repair toward the high end of these ranges is usually access: crawlspace duct runs, attic units reachable only by a narrow pull-down ladder, or a condenser squeezed against a fence line by HOA setback rules all take longer. The price is written before any work begins, and it does not change at the door.
Neighborhoods We Serve in Dunwoody
We run calls across the full city, from the colonials around Georgetown and the tree-lined streets of Dunwoody Club Forest to the subdivisions near Mount Vernon and the Perimeter-area townhomes. Response time for non-emergency calls is typically same-day when called in before noon; emergency cooling calls during summer heat waves get priority routing.
- Georgetown
- Dunwoody Club Forest
- Mount Vernon
- Perimeter Center area
- Kingsley
Service Area – Cities Near Dunwoody
Along with Dunwoody proper, our crews regularly handle work in Sandy Springs, GA directly to the west, Kennesaw, GA to the northwest, and south toward Candler-McAfee, GA. We also cover parts of Druid Hills, GA for homeowners with older single-family systems that need the same retrofit work as Dunwoody’s housing stock. Dispatch and scheduling are coordinated from our Atlanta area office; 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 HVAC Company in Dunwoody
For cooling failures between May and September, we route emergency calls same-day and prioritize homes without cooling when outdoor temperatures are dangerous. Non-emergency tune-ups and routine diagnoses are typically scheduled within a few days. Call (478) 400-5908 and a live person answers, 24/7.
Some Dunwoody HOAs, particularly those with strict landscaping and exterior appearance rules, require written notice or approval before a new outdoor condenser is placed or a pad is extended. Before a heat pump or AC installation, we confirm setback and screening requirements with the HOA so the work does not create a compliance problem later.
Yes, mechanical permits are required for full system replacements and many duct modifications. We pull the permit, schedule the inspection, and handle the paperwork as part of the installation. Repair work that replaces a failed component does not typically require a permit.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Dunwoody Customers Say
"Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Furnace tune-up. He cleaned the burners and flame sensor, tested for carbon monoxide, and gave me a clear report."
- Lisa M."Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J.