Lennox AC Installation Nationwide

Lennox AC Installation in Alpharetta: What to Know First

Lennox AC installation in Alpharetta typically costs between $3,500 and $7,500, depending on the model line, the size of your home, and whether existing ductwork can be reused. Most installations take one full day, and we always provide a written price before any work starts, so there are no surprises when the crew arrives. As an independent Lennox service provider, we install and service the full Lennox lineup, but we are not affiliated with or authorized by Lennox, which means we answer to you, not a corporate warranty department.

Call (478) 606-5046

This page is for Alpharetta homeowners who already own a Lennox system, or who are considering one, and want a straight answer about installation cost, timing, and what to expect from the crew who shows up. If you’re ready to talk specifics, call (478) 606-5046 and a live person will pick up, day or night.

Key takeaways:

• Lennox AC installation in Alpharetta runs $3,500 to $7,500 on average, with a written quote before work begins.
• We install the full Lennox line, including Merit, Elite, and Signature series, plus heat pumps and mini splits.
• Every job is backed by our 365-Day Done Right Promise and the Cedarwell Care Promise.
• A live person answers our phone 24/7. No voicemail queue, no call center.

How Lennox Products Fail, and How We Fix Them

Lennox builds solid equipment, but every brand has its patterns. After years of working on Lennox systems in Alpharetta homes, here’s what we see most often, and what we do about it.

• Merit Series evaporator coil leaks. The Merit line (ML14XC1, ML17XC1) is Lennox’s entry-level offering, and it does a fine job for the price. But the aluminum evaporator coils can develop pinhole leaks, especially in Alpharetta’s humidity, where coils run wet for months at a time. When a Merit coil leaks, we usually replace the coil under the parts warranty and recharge the system. If the unit is past warranty, we’ll give you a straight comparison: coil replacement versus a new condenser, with real numbers for both.
• Elite Series compressor failures after power surges. The Elite line (EL18XCV, EL296V) uses variable-speed compressors that are efficient but sensitive to voltage spikes. Alpharetta sees plenty of summer thunderstorms, and a nearby lightning strike can take out a compressor even with a surge protector on the panel. We install surge protection at the disconnect and recommend it be part of any new Lennox installation in this area.
• Signature Series communication board faults. The top-end Signature line (XC25, SL28XCV) uses a proprietary communicating thermostat and control board. When that board throws a fault code, the system can lock out entirely, and the fix is not a generic part. We carry or can source genuine Lennox boards quickly, and we test the entire communication loop before we call the job done.
• Drain pan corrosion on older R-22 Lennox units. Homes built before 2005 in Alpharetta often still have R-22 Lennox systems. Those drain pans rust through, especially in crawlspaces where humidity sits high. If you’re seeing water around the air handler, that’s usually the culprit. It’s also a good moment to talk about replacement, since R-22 refrigerant is no longer produced in the U.S., and recharging an old system gets more expensive every year.
• Expansion valve sticking on heat pump models. Lennox heat pumps (XP14, XP25) can develop a sticking thermal expansion valve, which causes uneven cooling and frost on the outdoor coil. This one is easy to misdiagnose as low refrigerant. We check superheat and subcooling before adding anything, because adding refrigerant to a stuck TXV makes the problem worse.

Our Lennox AC Installation Process

When you call us for Lennox AC installation in Alpharetta, here’s how the job goes, step by step.

1. 1
   Call and schedule. A live person answers the phone 24/7 and books your visit. We confirm the address, the equipment you have now, and any comfort issues you’ve noticed, so the right tech shows up with the right tools.
2. 2
   On-site evaluation and written quote. Our technician walks the whole system: outdoor unit, indoor coil, duct connections, thermostat wiring, and the electrical disconnect. Then they sit down with you and explain what they found, what your options are, and hand you a written price before any work is approved. No verbal ballparks that change later.
3. 3
   Parts and equipment decision. If you need a new Lennox system, we discuss which model fits your home and budget, whether the existing ductwork is adequate, and any rebates or financing paperwork we can help with. We use genuine Lennox equipment for full installations and OEM or high-quality aftermarket parts for repairs, depending on what’s still under warranty and what makes financial sense.
4. 4
   Installation day. The crew arrives on time, lays down drop cloths from the entry to the work area, and puts on shoe covers before stepping inside. We protect floors around the air handler and the path to the outdoor unit. If you have pets or kids at home, we keep the noise to reasonable levels and secure all tools and fasteners when we move between indoors and out.
5. 5
   System start-up and testing. We evacuate the lines with a vacuum pump, charge the system to manufacturer spec, check airflow and temperature drop across the coil, and verify the thermostat is communicating correctly with the new equipment.
6. 6
   Clean-up and photo. Before we leave, we clean the work areas, remove all packaging and old parts, and take a photo of the clean-up. That photo is part of the job, not an add-on. Then we walk you through what we did, what to watch for, and how the warranty works. Every installation is covered by our 365-Day Done Right Promise.

What Lennox AC Installation Costs in Alpharetta

Here’s what you can expect to pay for a Lennox AC installation in Alpharetta, based on the jobs we do most often.

• Merit Series AC Installation (ML14XC1 or similar): $3,500 to $5,000. This is the budget-conscious choice, and it cools fine, but it lacks the efficiency and noise reduction of higher lines.
• Elite Series AC Installation (EL18XCV or similar): $5,000 to $6,500. Variable-speed comfort, quieter operation, and better humidity control, which matters a lot in Alpharetta summers.
• Signature Series AC Installation (XC25 or SL28XCV): $6,500 to $7,500 or more. Top efficiency, near-silent operation, and the best humidity management Lennox offers.
• Complete system replacement with furnace or air handler: Usually adds $2,000 to $4,000, depending on the indoor unit and any duct modifications.

What moves the price is the size of the system, the length of the lineset, whether the electrical panel needs updating, and whether your ductwork is in good enough shape to reuse. We give you a written, itemized quote before you commit to anything, and the estimate is free. Call (478) 606-5046 and we’ll get you real numbers for your specific home.

Why Alpharetta Homeowners Call Meadowsweet Heating and Air for Lennox Work

Alpharetta is full of competent HVAC companies, so what makes us different? Luis Serrano, our owner, puts it this way: the work should be done right, and the house should look like we were never there when we leave. Every job includes the Cedarwell Care Promise, which means a written price before any work starts, background-checked uniformed technicians, and a 365-Day Done Right Promise that covers every Lennox installation and repair we do. If it’s not done right, we make it right, no runarounds and no fine print.

Our techs follow the C.A.R.E. values code: Clean up like it’s their own home, Ask before moving anything, Respect the family’s time and quiet hours, and Explain the price before the work. We service nine major equipment brands, including Carrier and Trane, so if a Lennox system is beyond saving and a different brand fits your needs better, we’ll tell you straight instead of forcing a sale. And a live person answers our phone 24 hours a day, 7 days a week, nights, weekends, and holidays included. No voicemail queue.

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