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Get your free estimateLennox HVAC in Decatur, GA | Halden Heating and Air Marietta
We provide independent Lennox HVAC service across Decatur, and the short version is this: we work on Lennox equipment here daily, which means we’ve seen how Decatur’s older homes and storm-heavy summers create very specific failure patterns that generic techs miss. The thing that makes our Lennox work different in Decatur is that we measure clearances, check static pressure, and quote parts before we ever recommend a replacement. Call (229) 514-0545 and you’ll get a live person, a written price, and a tech who knows a 1930s bungalow from a 2015 infill build. We’re not authorized by Lennox, and that’s fine by us. Independence means we fix what’s broken instead of selling you a new unit.
Why Decatur Residents Choose Us for Lennox Service
Andre Fuller, Owner at Halden Heating and Air Marietta, learned HVAC the hard way, turning wrenches on rooftop package units and crawlspace air handlers for nearly two decades before building this company on one rule: put the price in writing before anyone opens a panel. That rule matters double in Decatur, where a 1950s brick ranch might hide original undersized ducts behind a wall, or a Clairemont bungalow might have a mechanical closet that can’t swallow a modern air handler. Our techs arrive in uniform, with background checks done, and you get a live arrival time you can track to the door, not a four-hour window. We prefer Lennox sales & service done right the first time, with OEM-compatible parts and a written guarantee on every repair. If the repair fails, the second visit is free. That’s automatic, not an add-on.
Styles & brands we work with
Common Lennox HVAC Problems We Solve in Decatur
- iComfort thermostat communication dropouts. Lennox XC21 and XP25 units run on low-voltage wiring that often snakes through damp Decatur crawlspaces. Humidity corrodes connections, the thermostat loses signal, and the unit won’t respond. We trace the wiring, replace corroded terminals, and get the system talking again.
- ‘Limit Circuit Fault’ codes on EL296V and SLP98V furnaces. Older Decatur homes with original undersized ducts push static pressure too high during winter cold snaps. The furnace trips its limit switch to protect the heat exchanger. We measure static pressure, then fix the airflow problem, not just the code.
- Pollen-packed condenser coils on Lennox heat pumps. Tree-shaded Decatur neighborhoods mean heavy pollen and leaf debris on outdoor coils every spring. High head pressure locks out the unit. We clean coils thoroughly and replace clogged defrost sensors when needed, a faster fix than most companies quote.
- Inverter board failures after thunderstorms. Frequent Piedmont thunderstorms send power surges through Decatur wiring. Variable-capacity outdoor units like the XP25 have inverter boards that get fried even with standard surge protectors. We stock replacement boards locally and install proper surge suppression so it doesn’t happen again next storm.
- Short-cycling from heat pump defrost issues. Lennox heat pumps in Decatur run heating and cooling year-round, so defrost sensors take a beating. When the sensor fails, the unit short-cycles and the house never holds temperature. We replace defrost sensors with quality parts and verify the cycle times before we leave.
Lennox Service in Decatur: What Local Conditions Mean for Your Equipment
In Decatur’s Clairemont Historic District, many original coal chutes were converted into tiny mechanical closets, leaving almost no side clearance for modern Lennox air handlers. Our techs measure doorways and closet depth before recommending any replacement, because a 21-inch-wide SLP98V simply won’t fit where a 17-inch EL195 slid in decades ago. That’s the kind of checkable detail that changes the whole job. We’ve walked into Clairemont homes where a homeowner was quoted a full Lennox XC21 install by another company, only for us to point out the closet door was 19 inches wide and the quote was dead on arrival. Decatur’s dense, tree-shaded neighborhoods also mean Lennox condensers sit in more shade than units in sunnier towns like Marietta, so coil cleaning matters double here. Moss, pollen, and oak tassels build up faster than you’d think. We treat every job as a Decatur job, with the specific clearances, duct sizes, and storm history that go with it.
Lennox Models & Products We Service in Decatur
We service the Lennox lines you’ll actually find in Decatur homes. That includes the XC21 two-stage air conditioner, the EL296V variable-speed gas furnace, the SLP98V variable-capacity furnace, and the XP25 variable-capacity heat pump. For variable-speed and modulating components like ECM motors, inverter boards, and gas valves, we use OEM Lennox parts because they’re calibrated to the unit’s exact algorithms. For wear items like capacitors, contactors, and defrost sensors, we lean on quality aftermarket parts when a faster, more economical fix is what a customer needs. We carry common Lennox parts on our trucks for fast Decatur turnaround, and we’ll tell you straight if a part is OEM or aftermarket before we install it. When a compressor, heat exchanger, or variable-speed drive fails out of warranty on a unit over 10 years old, we present a detailed repair estimate against a new system quote rather than pushing an expensive patch. Straight answer, written price, done right.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Decatur
| Service | Typical Price Range |
|---|---|
| Lennox AC Repair | $150 – $650 |
| Lennox Furnace Repair | $150 – $700 |
| Lennox AC Installation | $3500 – $7500 |
| Lennox Furnace Tune-Up | $80 – $200 |
A capacitor replacement on an XC21 runs on the lower end. An inverter board on an XP25 after a thunderstorm surge is on the higher end. You’ll always get a written price before any work starts, and that price doesn’t move. No door-step surprises. Call (229) 514-0545 for an exact quote on your Lennox equipment. Estimates are free.
Serving Decatur, GA - Our Local Coverage Area
We’re based in the Decatur 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 Decatur
High pressure lockouts on an XC21 usually happen because the condenser coil is packed with debris or the unit lost airflow after a storm. In Decatur, heavy thunderstorms knock down leaves, oak tassels, and pollen that clog the coil fast. The fix is a thorough coil clean plus a check of the fan motor and capacitor, which is part of our AC Repair in Decatur. Call (229) 514-0545 if it keeps locking out, we’ll get it sorted in one visit.
It depends entirely on your ductwork’s static pressure, which our techs measure on site. A 1950s Decatur ranch often has ducts sized for an old 80% furnace, not a variable-speed EL296V that needs more airflow. If static pressure is too high, we’ll recommend duct modifications or a different furnace model before any AC Installation in Decatur. Our job is to tell you what will actually work in your house.
Twice a year. Decatur’s climate means your Lennox heat pump cycles between cooling and heating constantly, so spring and fall tune-ups keep the reversing valve, coils, and defrost sensors from failing mid-season. We check subcooling, clean coils, and catch small problems before they become $600 repairs. Our tune-ups run $80 – $200, and the report tells you exactly what we found.
Short-cycling on an SLP98V during a cold snap usually means the limit switch is tripping from high static pressure. In older Decatur homes with original undersized ducts, the furnace can’t move enough air, so it shuts down to protect the heat exchanger, then restarts, then shuts down again. We measure static pressure, check the filter, and fix the airflow path. Ignoring it can crack a heat exchanger, and that’s a replacement-level repair.
Yes. The iComfort thermostat is sensitive to power surges, which Decatur sees a lot of during Piedmont thunderstorms. Often the thermostat itself is fine; the low-voltage wiring took a hit somewhere. We trace the wiring, replace damaged terminals, and install surge protection on the control circuit. Call (229) 514-0545 and we’ll walk you through it.
Service Areas Near Decatur
We run Lennox service calls all over this side of metro Atlanta. Beyond Decatur, you’ll find our trucks in Decatur service area, Marietta, Douglasville, Powder Springs, Vinings, and Fair Oaks. If you’re near one of those and need a Lennox heat pump or furnace looked at, the same written-price rule applies. Need Lennox help north of here? Try our Lennox service in Marietta page. West side? Read about Lennox service in Douglasville.
Book Your Lennox Service in Decatur Today
Call (229) 514-0545 and you’ll get a live person, a written price before work starts, and a tech who shows up on time and tracks to your door. Same-day service is available for AC and furnace failures when the heat is on, and in Decatur’s summer, that’s most days.
Written by Andre Fuller, Owner at Halden Heating and Air Marietta, serving Decatur and metro Atlanta since 2004.