5 out of 5 stars - 164 votes

5 Stars (164 Reviews)

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Lennox HVAC Repair in Atlanta, GA

Lennox Repairs Done Right by a Team North Georgia Trusts

✔ Family Owned & Operated
✔ We Service All Major HVAC Brands
✔ Financing Options
✔ Same-Day & Emergency Service Available

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No matter what's on your unit, we can fix it.

Honest, Reliable, Trustworthy

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Our Story
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5.0 Rating

★ ★ ★ ★ ★
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BBB A+ Accredited

★ ★ ★ ★ ★
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4.9 Rating

★ ★ ★ ★ ★
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Certified Professionals Serving Every Top HVAC Brand in North Georgia

Lennox builds some of the most advanced residential HVAC equipment available, high-efficiency variable-capacity systems, communicating controls, and smart diagnostics that outperform nearly every other brand on the market. That sophistication is exactly what homeowners pay for when they invest in Lennox. It's also why Lennox systems require technicians who genuinely understand the platform before they open the panel.

At MR. HVAC, we've been servicing Lennox AC units, furnaces, and heat pumps across North Georgia for over 25 years. We carry common Lennox replacement parts on our trucks and have the diagnostic experience to efficiently navigate Lennox's communication system platform. Whether your Lennox isn't cooling, your furnace won't fire, or your iComfort display is showing an error, call us, and we'll have a technician out the same day.

Our Services for Lennox Equipment

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Lennox AC Repair

From capacitor and contactor failures to refrigerant issues, coil problems, and iComfort control errors, we diagnose and repair all Lennox central air conditioning systems. If your Lennox AC isn't cooling, is short cycling, or won't turn on, we'll find the cause fast.
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Lennox Furnace Repair

Heat exchanger cracks, variable-speed blower motor failures, igniter issues, and pressure switch faults are among the most common Lennox furnace repairs we handle. We know how to read Lennox fault codes and trace the actual root cause, not just clear the error and hope it doesn't come back.
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Lennox Tune-Up & Maintenance

Lennox systems perform best when they're maintained on schedule. Annual maintenance keeps the efficiency ratings you paid for, catches wear before it becomes a breakdown, and extends the service life of one of the most capable HVAC systems on the market.
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Lennox Heat Pump Repair

Lennox heat pumps combine high-efficiency operation with sophisticated controls that require real platform knowledge to diagnose correctly. We service Lennox heat pumps year-round across both heating and cooling seasons, including variable-capacity compressor issues and communicating system faults.

Common Lennox Issues We Fix

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  • Lennox AC not cooling or blowing warm air

  • Lennox furnace won't ignite or shuts off shortly after starting

  • Lennox iComfort thermostat or control board showing error codes

  • Lennox variable-speed blower running erratically or not at all

  • Lennox furnace heat exchanger concern or unusual smell

  • Lennox system short cycling or losing communication between components

Why put your Lennox system’s care in the hands of Mr. HVAC?

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Honesty

At MR. HVAC honesty is at the heart of everything we do. We believe in transparent pricing, straightforward advice, and only recommending genuinely needed services. We ensure you are fully informed at every step, providing clear explanations and no hidden fees. We aim to ensure you always know what to expect—no surprises, just dependable service you can trust for years.

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Community

At MR. HVAC, we're proud to be a locally owned business deeply rooted in the community. Our personalized approach treats every customer like family, unlike large corporations. Our team lives and works in the same neighborhoods, so we understand the unique challenges of our local climate. We're committed to providing not just quick fixes but lasting solutions tailored to your home's needs.
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Experience

With over 25 years of industry expertise, MR. HVAC takes pride in the knowledge and skills our team has gained. This experience lets us diagnose issues quickly and deliver reliable, high-quality solutions. Our seasoned technicians provide customers with peace of mind, knowing they're receiving service from professionals who can confidently handle any challenge.

Frequently Asked Questions about Lennox HVAC

Do you service all Lennox models?
Yes. We service the full Lennox residential lineup, central air conditioners, gas furnaces, heat pumps, and air handlers, across all model generations, including Lennox's Dave Lennox Signature, Elite, and Merit series equipment.
My Lennox iComfort is showing an error. What should I do?
Lennox's iComfort system uses specific error codes to flag faults across the communicating system. The thermostat, air handler, outdoor unit, and accessories all talk to each other and can generate codes that point to multiple possible causes. A technician familiar with Lennox's communication platform can accurately interpret those codes and quickly trace the actual problem.
Are Lennox systems harder to repair than other brands?
Lennox's higher-end systems, particularly those with variable-capacity compressors and iComfort controls, are more technically complex than most other residential brands. That complexity makes diagnosis more involved, which is why brand experience matters more with Lennox than with simpler platforms.
How long do Lennox AC systems last in North Georgia?
A well-maintained Lennox system typically lasts 15-20 years. Lennox's build quality and efficiency standards give its equipment a strong lifespan, but that lifespan depends on annual maintenance, especially in North Georgia's hot, humid summers.
Should I repair or replace my Lennox system?
Because Lennox systems are built to high standards, repair is often the right call further into the system's life than you might expect with a lesser brand. We'll give you an honest assessment based on the system's age, the nature of the fault, and whether the repair cost makes sense relative to replacement, and we'll tell you straight if it doesn't.
What areas do you serve for Lennox repairs?

We serve Canton, Woodstock, Roswell, Alpharetta, and the surrounding North Georgia area.