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Get your free estimateLennox HVAC in Roswell, GA | Cold Harbour Heating and Air Marietta
We provide independent Lennox HVAC service across Roswell, and the work here has a particular flavor: old homes with tight mechanical spaces, pine-heavy air, and equipment that’s been pushed hard by Georgia humidity. When summer hits, homeowners often need our AC Repair in Roswell to get through the worst of it. We are not a Lennox factory branch or an authorized dealer, and that independence is precisely why homeowners call us. We troubleshoot what’s actually failing and fix it without pushing a replacement you don’t need. If your Lennox system is acting up, call (762) 240-5599 and tell us what it’s doing.
Our technicians have serviced Lennox equipment across Roswell for more than a decade, from 1990s builder-grade systems to modern variable-speed units, and we stay current on Lennox-specific diagnostic procedures and control board logic without being bound by manufacturer restrictions. That means straight answers and repairs that fit the equipment, the house, and the budget. Whether you’re near Canton Street or out toward Martins Landing, we show up when we say we will, with a written price before the work starts.
Why Roswell Residents Choose Us for Lennox Service
Most of our calls in Roswell come from neighbors referring neighbors, and that does not happen by accident. Victor Mancini grew up learning the trade at Los Angeles Trade-Technical College before spending the better part of two decades doing HVAC work across the Southeast, and he built this crew around one habit: a homeowner gets a plain-English explanation and a written price before a single tool comes out. That’s the Kingswell Way, and we put it on paper every single job.
We service all major residential brands, but Lennox has been a steady share of our work in Roswell for years. The communicating systems, the variable-speed furnaces, the heat pumps with defrost quirks, we know them. More importantly, we know which failures are worth repairing and which ones mean it’s time to have the replacement conversation. Our Lennox sales & service work is anchored in that repair-versus-replace honesty. Every repair comes with our 365-Day Done Right Promise in writing: if it fails within a year, we come back and correct it at no charge.
Styles & brands we work with
Common Lennox HVAC Problems We Solve in Roswell
- iComfort communicating systems throwing false error codes. Roswell’s muggy summers cause humidity sensor drift, and we regularly see “communication error” codes that are actually a thermostat calibration issue, not a failed control board. We recalibrate before we replace, which saves real money.
- Evaporator coil leaks on older R-22 units including HS26 and HSXA16. Historic Roswell homes often have attics that run brutally hot in July, accelerating coil corrosion. We’ll test for leaks and walk through whether a repair or a system replacement makes sense for a home that still relies on obsolete R-22 refrigerant.
- Cracked heat exchangers on Lennox G40 and G50 gas furnaces. Homes near the Chattahoochee sit in high winter humidity, and the freeze-thaw cycles stress metal fatigue more than you’d see in drier parts of metro Atlanta. A cracked heat exchanger is a safety issue, and we treat it that way.
- Condenser fins packed with pine needles and pollen on XC13 and XC21 models. Roswell’s tree canopy is beautiful and relentless. We pull enough pine debris out of condenser coils to fill a five-gallon bucket on a bad call, and that clogged coil is what’s driving head pressure high enough to short-cycle a compressor.
- Weak run capacitors that knock out cooling on the hottest afternoons. We replace capacitors frequently across Roswell, and on Lennox units in particular a weak capacitor reads like a broader electrical fault if you don’t test first. Saves homeowners a lot of misdiagnosis.
Lennox Service in Roswell: What Local Conditions Mean for Your Equipment
Roswell’s historic district homes, many built before 1940 with pier-and-beam foundations, often have Lennox condensers installed in tight crawlspaces or on original brick piers. That is not a setup you see in Woodstock or Marietta to the same degree. Getting a modern high-efficiency unit into those spaces means custom line set routing, careful vibration isolation so the old brick doesn’t crack, and a lot of patience. The structure comes first, codes second, and the equipment has to fit both. We’ve done enough of these to know that a cookie-cutter install plan does not survive contact with a 1920s crawlspace in Roswell.
Then there’s the other half of the city: the subdivisions from the 1980s and 1990s with slab foundations and attic systems, many still running original R-22 Lennox equipment. Those systems are at the end of the road, and Roswell’s summers don’t grant extensions. We help homeowners there run the numbers on repair versus replacement, because an R-22 recharge on a 14-year-old unit is often throwing good money after a compressor that’s already tired.
Last July, our tech responded to a no-cool call on Canton Street in Roswell’s historic district. The homeowner had a Lennox XC16 air conditioner, and we found the outdoor unit cycling on high pressure due to pine needle buildup in the condenser coil. After a thorough coil cleaning and replacing a weak run capacitor, the system held a 20-degree temperature split, and the homeowner’s upstairs guest room finally cooled to 72 degrees. That’s Roswell work in a nutshell.
Lennox Models & Products We Service in Roswell
We service the full Lennox range. That includes the Elite Series like the EL296V and XC16, the Merit Series like the ML14XC1 and ML180, and the higher-end Signature Collection like the XC25 and SLP98V, along with Dave Lennox Signature Collection heat pumps like the XP25. On parts, we use OEM Lennox components for critical pieces like control boards and variable-speed motors, because compatibility matters when a communicating system is involved. For wear items like capacitors and contactors, quality aftermarket parts keep the repair cost reasonable. We stock the common Lennox service parts so Roswell calls don’t wait on shipping, and anything specialized gets ordered the same day.
See the difference
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After
Before
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Before
AfterLennox Service Pricing in Roswell
Here’s what Lennox service typically costs in the Roswell market, parts and labor included:
| Service | Typical Price Range |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3500 – $7500 |
| Tune-Up | $80 – $200 |
| Capacitor Replacement | $150 – $350 |
| Refrigerant Recharge (R-410A) | $200 – $600 |
What drives the cost is the specific failure, the age of the Lennox unit, and how hard the parts are to reach in your particular home. A capacitor on an easy-access condenser is quick. A heat exchanger inspection in a tight attic is slower. You’ll have a written price before we start, every time. If you want an exact quote for your Lennox system, call (762) 240-5599. Estimates are free, and nobody will pressure you into a job that doesn’t need doing.
Serving Roswell, GA - Our Local Coverage Area
We’re based in the Roswell 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 Roswell
The cause is usually humidity sensor drift inside the thermostat, which throws a false communication error code in muggy conditions. We recalibrate the thermostat and cycle the system to confirm. It’s a service call, not a control board replacement, in most Roswell cases. If your iComfort is misbehaving, call (762) 240-5599 and we’ll sort it out.
We can often repair it, especially for leaks and electrical faults. The catch is refrigerant cost: R-22 is out of production, and recharging gets more expensive every year. If your Lennox is over 12 years old with a compressor or coil failure, we’ll run the repair-versus-replace numbers with you honestly. Call (762) 240-5599 and we’ll test it before anyone recommends spending thousands.
Short-cycling near the Chattahoochee usually points to a dirty flame sensor or an overheating limit switch tripping from restricted airflow, both common in humid river air that carries more particulate. These are issues we address with Roswell Furnace Repair that targets the actual cause, not the symptom. It can also be a thermostat calibration issue. We’ll pin down the exact cause before quoting a fix. Call (762) 240-5599 and we’ll come take a look.
Every six months, once before summer and once before winter. Roswell’s heavy cooling season from May through September puts real hours on a heat pump, and the pollen and pine debris here clog outdoor coils faster than in less wooded cities. A twice-a-year tune-up catches wear items before they become breakdowns. We’ll give you a written report of what we find, not a sales pitch.
Usually yes, with the right approach. High-efficiency Lennox furnaces are not dramatically larger than their older counterparts, but the venting and condensate drainage have to be routed carefully in a tight crawlspace or pier-and-beam foundation. We’ve done this work throughout Roswell’s historic district, and we’ll assess your specific space before quoting. Call (762) 240-5599 and we’ll take the measurements.
Service Areas Near Roswell
From our base in Marietta, we’re out to Roswell regularly, and we cover the surrounding communities too: Woodstock, Holly Springs, Dallas, and North Decatur. Our Roswell service area spans the full city, from the historic district to the newer subdivisions, and our territory keeps us close when a Lennox system quits in the heat. We also provide Lennox service in Woodstock and Lennox service in Marietta for homeowners just down the road.
Book Your Lennox Service in Roswell Today
If your Lennox system is struggling in Roswell, call (762) 240-5599. A live person answers, 24 hours a day, 7 days a week. We’ll schedule a firm arrival window, give you a written price before the work starts, and back the repair in writing for 365 days.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Marietta, serving Roswell since 2003.