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 Duluth, GA
Duluth is a city where HVAC systems work hard for eight months of the year, and the rest of the time they’re dealing with pine needles, pollen, and humidity. The housing stock here, mostly single-family homes built between the mid-1980s and early 2000s, is aging into a wave of equipment failures. Original R-22 heat pumps and gas furnaces are reaching end-of-life right as Gwinnett County summers get longer and wetter. Dalton Heating & Air dispatches crews to Duluth daily from our Atlanta metro operations, and we answer the phone live around the clock at (229) 537-2086.
Why Duluth Homes Are Different
Walk through Sweetbottom Plantation or Berkeley Hills in April and you’ll see it: condenser coils packed with pine pollen and needles, units half-buried under leaf litter. Duluth’s tree-lined lots are part of the charm, but they’re hard on outdoor equipment. Those coils clog, head pressure rises, and compressors fail years early. We clean coils on a higher share of Duluth calls than almost any other market we work.
Attic heat is the second factor. Many of Duluth’s two-story homes from the 1980s and 1990s were built with the air handler or furnace installed in the attic. In July, attic temperatures regularly climb past 130 degrees. That heat cooks capacitors, blower motors, and control boards. A unit that would run 18 years in a basement finds its limit at 12 to 14 up there. We see it every summer.
The third piece is humidity. Duluth’s humid subtropical climate means cooling system sizing has to account for moisture removal, not just temperature drop. A system that’s oversized cools the air too fast and leaves the house clammy. That’s why we check static pressure and airflow on every Duluth diagnostic call, not just the refrigerant level.
Styles & brands we work with







Our Main Duluth Services
Most Duluth homeowners call us when the air stops blowing in July or the furnace won’t light in February. These are the three jobs we run most often in this city.
AC Repair in Duluth
In Duluth, AC repair calls spike after the first hard heat in June. Many of these systems are original to the home, running R-22 refrigerant that is no longer manufactured, which changes the repair math. We stock common capacitors, contactors, and fan motors on our trucks so most repairs finish in one visit. We also check the condenser coil for pine needle blockage on every call, because a clean coil is the difference between a working system and a repeat failure. See AC Repair in Duluth for pricing and what we cover.

Heat Pump Installation in Duluth
Duluth’s mix of aging split systems and newer townhome construction near Gwinnett Place means heat pump installation here runs the full spectrum: full changeouts in older two-story homes, attic replacements, and new high-efficiency installs in tighter lots. We size every Duluth heat pump against a load calculation that accounts for attic location, window area, and the humidity load. No rule-of-thumb sizing, because an oversized heat pump in Duluth leaves the house wet and musty all summer. Read Heat Pump Installation in Duluth before you get quotes.

Furnace Repair in Duluth
Duluth’s winters usually stay mild, but when the cold drops below freezing in January, furnaces get pushed harder than homeowners expect. Inducer motors, hot surface igniters, and flame sensors are the most common failures we find. On every furnace repair call in Duluth, we inspect the heat exchanger for cracks, because a failed heat exchanger is a carbon monoxide risk. The details are on our Furnace Repair in Duluth page, including our written one-year guarantee.

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 Duluth
Carrier, Trane, Lennox, and Goodman account for most of the equipment we see in Duluth, but we’re factory-trained on all nine major residential brands. Our trucks carry common boards, motors, and capacitors for these systems, which keeps most Duluth repairs to a single visit. Details are on our brands page.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Duluth, GA
| Service | Typical range in Duluth |
|---|---|
| AC repair (minor: capacitor, contactor, thermostat) | $150 – $350 |
| AC repair (major: fan motor, control board, leak repair) | $350 – $650 |
| Furnace repair (minor: igniter, flame sensor, pressure switch) | $150 – $350 |
| Furnace repair (major: blower motor, gas valve, inducer) | $350 – $700 |
| AC installation / full system changeout | $3,500 – $7,500 |
| Tune-up / maintenance visit | $80 – $200 |
Two things push Duluth pricing: attic-located equipment takes longer to service, and heavy pine debris means coil cleaning is a standard part of many repairs. Whatever the number, it is written down before any work begins, and you approve it first. No price changes at the door.
Neighborhoods We Serve in Duluth
We run calls all over Duluth, from the established subdivisions along Buford Highway to the newer developments closer to Peachtree Industrial Boulevard. Here are a few of the neighborhoods where we work most often:
- Sweetbottom Plantation
- Berkeley Hills
- Norman Downes
- Charleston Bay
- Howell Wood
Most Duluth calls get a technician within the same day. If your system is down in extreme heat, tell the dispatcher, and we prioritize accordingly.
Service Area – Cities Near Duluth
Duluth sits at the north end of Gwinnett County, and our crews regularly cross into the surrounding communities. We also serve Buford, GA to the northeast, Norcross, GA to the south, Alpharetta, GA to the northwest, and Roswell, GA further up the river. If you’re unsure whether we cover your street, call us. We’ll tell you straight.
Serving Duluth, GA - Our Local Coverage Area
We’re based in the Duluth 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 Duluth
Most Duluth calls get same-day service when you call before early afternoon. Emergency calls in extreme heat or cold are prioritized. Call (229) 537-2086 and a live person answers, day or night.
Gwinnett County requires a mechanical permit for most equipment changeouts and some repairs. We pull permits on our Duluth installation jobs and handle the inspection coordination. If a permit is needed, it’s already in the written quote. No surprises.
The price you get in writing after diagnosis is the price you pay. Phone estimates give you a range. The exact written price comes after the technician opens the unit and sees what’s actually failed. Nothing starts until you approve that number.
Yes. Several Duluth HOAs have rules about condenser placement, fence screening, and acceptable noise levels. We’ve installed in enough of these neighborhoods to know how the process works, and we’ll flag any potential conflict before you sign. Call for details.
If your system is acting up or you’re planning a replacement in Duluth, call (229) 537-2086 for a free estimate. Written price, clean work, and a full-year guarantee on repairs. That’s the standard.
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 Duluth Customers Say
"Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."
- Sandy G."Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B.