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Get your free estimateLennox HVAC in Duluth, GA | Dalton Heating & Air Alpharetta
We service Lennox heating and cooling systems across Duluth, GA, from the 1990s split systems off Berkeley Hills Drive to the newer mini-splits going into Gwinnett Place townhomes. We’re an independent Lennox service provider, not a factory authorized dealer, so our experience comes from the units we actually open up in Duluth attics, crawlspaces, and backyards. Call (229) 537-2086 for Duluth AC Repair with a written price before any work starts.
Why Duluth Residents Choose Us for Lennox Service
Most Duluth homes were built between the mid-1980s and early 2000s, and a lot of them still run the original Lennox Merit series or early Elite systems. That’s the equipment our techs know best because that’s what’s actually out here. When Marco Benitez sends a tech to a Duluth home, that tech has likely worked on the same model line a dozen times this year, whether it’s an ML14 straight-cool unit or an XP16 heat pump. We carry OEM Lennox parts for critical controls and compressors, and we use proven aftermarket capacitors, contactors, and blower motors when they match or beat OEM durability. Every job gets a written price before work starts and a written one-year guarantee on the repair, so you know what you’re paying and what happens if the fix doesn’t hold. Lennox sales & service is what we do, and Duluth is where we do a lot of it.
Styles & brands we work with







Common Lennox HVAC Problems We Solve in Duluth
Here’s what we find when we open up Lennox systems in Duluth, and why it happens here specifically:
- Evaporator coil leaks on R-410A split systems. Lennox coils from the late 2000s and early 2010s develop pinhole leaks after 8 to 12 years, and Duluth’s humid crawlspaces accelerate the corrosion. We see this on Elite and Merit systems across the city, especially in two-story homes where the air handler sits in a damp crawl.
- Condensate drain clogs from pine pollen. Sweetbottom Plantation and other tree-lined Duluth neighborhoods drop a heavy pollen load every spring. On Lennox Merit units, that pollen packs into the condenser pan and clogs the drain line, which shuts the system down on a safety float switch just when cooling season ramps up.
- Faulty communication boards on Signature modulating units. Two-story Duluth homes with attic installs put real heat stress on the boards in SLP98V furnaces and XC25 air conditioners. When the board loses communication, the system either won’t start or runs at full speed and overshoots the thermostat.
- Overheating limit switch trips on SLP98V furnaces. Duluth cold snaps send those modulating furnaces into long run cycles. If the filter is restricted or the return duct is undersized, the limit switch trips and the furnace shuts down after 10 or 15 minutes, then restarts and trips again.
- Compressor failure on aging single-stage units. The original Merit ML14 and 13ACX condensers in Duluth backyards are now 15 to 20 years old. When the compressor goes, we don’t patch it. We quote a replacement with real numbers and local rebate paperwork handled.
Lennox Service in Duluth: What Local Conditions Mean for Your Equipment
Duluth’s mix of aging 1990s subdivisions and the redevelopment around Gwinnett Place creates a split workload you don’t see in most nearby cities. On one side, homeowners in Duluth’s service area still run original Merit air conditioners matched to undersized ductwork in houses built when R-22 was standard and airflow calculations were loose at best. On the other side, the new townhome and apartment projects near Gwinnett Place run Lennox mini-split and multi-zone systems on upper floors, where access is tight and board failures require a different skill set. Our techs routinely balance airflow upgrades and new indoor coil matches on a Monday in a 1990s subdivision and then swap a failed multi-zone ductless board in a Gwinnett Place townhome the same week. That range of work means we see the full span of Lennox equipment in Duluth, from obsolete single-stage condensers to current communicating systems.
Lennox Models & Products We Service in Duluth
We work on every major Lennox line installed in Duluth homes: the Merit® Series (ML14, 13ACX), the Elite® Series (XC16, XP16), and the Dave Lennox Signature® Collection (SLP98V, XC25). That includes traditional split systems, our Heat Pump Installation in Duluth, modulating gas furnaces, and the mini-split and multi-zone ductless units going into new Duluth development. For critical components we use OEM Lennox parts so the board or the compressor matches original specs. For wear items like capacitors, contactors, and blower motors, we stock proven aftermarket options that hold up as well or better than the factory part, and they cost homeowners less. That parts strategy speeds up repair turnaround in Duluth because we’re not waiting on a factory shipment for every common failure.
See the difference
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AfterLennox Service Pricing in Duluth
Here’s what Lennox work actually costs in Duluth. These are the ranges we quote, and the price is in writing before we start:
| Service | Price Range |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3500 – $7500 |
| Tune-Up | $80 – $200 |
A refrigerant recharge on a Lennox R-410A system, which means topping off the cooling fluid your system needs to hit set temperature, usually lands in the lower half of the repair range if there’s no leak. A heat exchanger issue on an SLP98V furnace will push into the higher end because the part is expensive and the labor is involved. The free estimate includes a full diagnosis with a plain-language explanation of what failed and what it costs to fix. Call (229) 537-2086 for an exact quote on your Lennox system in Duluth.
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 – Lennox HVAC in Duluth
A Lennox AC tripping its breaker in Duluth summer heat is most often a failing capacitor, a compressor drawing high amps, or a condenser coil packed with pine pollen that’s driving up head pressure. We diagnose all three before quoting anything. Often it’s the capacitor or the coil, and we can fix it for a few hundred dollars rather than replacing the unit. Call (229) 537-2086 for a written diagnosis.
We can recharge an R-22 Lennox system in Duluth, but R-22 is no longer produced and the per-pound cost is high, so a full recharge on an aging system rarely makes financial sense. If the system has a leak, we’ll find it and give you an honest repair-versus-replace quote before we sell you a pound of refrigerant. Call (229) 537-2086 and we’ll walk you through the numbers for your specific unit.
That’s a classic limit switch trip. On a Lennox SLP98V in a Duluth crawlspace, it usually means a restricted filter or undersized return duct is starving the furnace for airflow, so the heat exchanger overheats and the safety limit shuts the burners down. We’ll check airflow, static pressure, and the limit switch itself, then quote the fix in writing. Call (229) 537-2086 before the next cold snap.
We service both. Our techs work on Lennox mini-split and multi-zone ductless systems in Duluth townhomes and apartments, including failed communication boards and refrigerant leaks on upper-floor units. We also service traditional Lennox split systems, heat pumps, and gas furnaces across Duluth’s single-family neighborhoods. Call (229) 537-2086 and tell us what the system is doing.
Yes. A whole-home dehumidifier can be added to an existing Lennox system in Duluth as long as the air handler and ductwork are in decent shape. Duluth’s humid summers make dehumidification worth the install for a lot of homeowners, especially in crawlspace homes where indoor humidity sits above 60 percent. We’ll assess the ductwork, the electrical, and the condensate drain path, then quote a written price. Call (229) 537-2086 for a free estimate.
Service Areas Near Duluth
We provide Lennox service across Duluth and into the surrounding metro. That includes Lennox service in Alpharetta, Lennox service in Milton, plus Sugar Hill, Buford, and Clarkston. If you’re within a short drive of Duluth, we can usually reach you the same day you call.
Book Your Lennox Service in Duluth Today
If your Lennox system is acting up in Duluth, call (229) 537-2086. We’ll get a tech out, give you a written price, and stand behind the repair for a full year. Same-day service is available for most Duluth calls.
Written by Marco Benitez, Owner at Dalton Heating & Air Alpharetta, serving Duluth and the surrounding metro since 2003.