Lennox Air Duct Cleaning Service Nationwide

Why Alpharetta Homeowners Choose Lennox Air Duct Cleaning

We provide independent Lennox air duct cleaning in Alpharetta, GA for furnaces, air handlers, and full duct systems, and we do it without the manufacturer’s markup or wait times. Our crews clean hundreds of Lennox systems in Alpharetta every year, which means we know exactly where dust, pollen, and construction debris accumulate in the Signature, Elite, and Merit lines. We are not a Lennox dealer and we are not authorized by Lennox. We are an independent service company that sees these systems in real Georgia homes, and that hands-on familiarity is what separates our work from a generic duct cleaning outfit. Call (762) 769-7145 and we’ll give you a written price before any work starts.

Call (762) 769-7145

Alpharetta’s pollen load gives Lennox equipment a distinct beating. Pine and oak pollen coat evaporator coils inside Elite Series air handlers. Variable-speed blower wheels in SLP98V furnaces grow a layer of caked dust that throws the wheel out of balance. Finished basements hide flex duct runs that collect lint and drywall dust after renovations. If you own a Lennox system in Alpharetta, you are fighting a specific kind of buildup, and we clean for that specifically. We also offer Lennox service in Alpharetta for homeowners dealing with these exact conditions.

Why Trust Hollis Air Duct Alpharetta for Your Lennox Air Duct Cleaning?

Roy Castellanos, our owner, completed his HVAC coursework at Los Angeles Trade-Technical College before relocating to Georgia and has spent the better part of two decades cleaning duct systems across Alpharetta. He’s pulled Lennox blowers apart in older two-story homes near Windward Parkway where the debris inside told a story about exactly how long those systems had been ignored. Roy built Hollis Air Duct around one standard: every register and return gets checked, not just the ones easy to reach.

That standard matters with Lennox equipment specifically because these are not forgiving machines. A variable-speed SLP98V blower wheel can hold a half-inch of bonded dust before airflow drops enough to trigger short-cycling. An Elite Series evaporator coil can freeze solid if a summer pollen coat goes unaddressed. Our technicians know these failure patterns because we see them weekly in Alpharetta homes. We use OEM Lennox filters and coil cleaners where warranty compatibility demands it, and we carry quality aftermarket flex duct and mastic sealant where OEM does not add value. The result is a cleaning that is warranty-safe, correctly priced, and matched to how Lennox systems actually fail in this climate.

Common Lennox Air Duct Cleaning Problems We Fix in Alpharetta

• Dust-caked variable-speed blower wheels in SLP98V furnaces. The SLP98V’s ECM blower runs constantly at low speed, which means dust that passes the filter gets pressed onto the wheel’s cupped blades. In Alpharetta, where the furnace runs less but the blower circulates year-round, that dust bakes on and throws the wheel out of balance. You’ll hear a low hum that shouldn’t be there, and airflow drops room by room. We pull the blower, clean each blade, and rebalance before reinstalling.
• Pollen and debris clogging evaporator coils in Elite Series air handlers. The EL296V furnace paired with a cased coil will pull whatever is in the return air across the coil. Georgia pine pollen is sticky. It bonds to coil fins, mixes with condensation, and forms a paste that chokes heat transfer. The coil freezes, the AC stops cooling, and the homeowner thinks the system is dead. In most cases, the coil just needs a proper cleaning with an OEM-safe coil cleaner.
• Renovation dust and lint packed into flex duct runs. Alpharetta has a large stock of 1990s and 2000s homes with original flexible ductwork. When a homeowner renovates a kitchen or finishes a basement, drywall dust and construction debris get drawn through the returns and settle in the flex runs. We’ve pulled enough drywall dust out of Lennox duct systems in Alpharetta to fill a wheelbarrow. The symptom is weak airflow from specific rooms, not the whole house.
• Mold growth along return plenums from summer humidity. Alpharetta’s humid subtropical summers mean condensation forms wherever conditioned air meets warm, damp exterior air. Return plenums in unconditioned attics and crawlspaces are the usual spots. When the filter has been neglected, dust on the plenum walls becomes a food source. We clean the plenum, treat the surface, and recommend a filtration upgrade where the situation calls for it.
• Grease-coated returns in Windward and other master-planned communities. Homes in Windward and similar layouts often place return grilles near the kitchen, which draws cooking aerosols through the duct system. Grease-laden air coats the interior of the return duct, and then pollen sticks to the grease. That combination hardens into a film every duct cleaning method struggles with except a proper negative-air cleaning with agitation. We see it constantly in Alpharetta’s master-planned neighborhoods.

Clean ducts don’t announce themselves – you just breathe better and the filter stays cleaner longer.

Lennox Parts & Our Repair-vs-Replace Approach

Here’s how we make the OEM versus aftermarket call on Lennox systems. For anything that touches the air stream and must meet warranty spec – filters, coil cleaners, UV lamps – we use OEM Lennox parts. The warranty language on Signature Collection equipment is strict, and using an unapproved cleaner on an SLP98V heat exchanger or an Elite Series coil gives Lennox grounds to deny a claim. We won’t put you in that position.

For flex duct, mastic sealant, grille hardware, and access-door gaskets, we use quality aftermarket material. The ductwork connected to a Lennox furnace is not manufactured by Lennox, and aftermarket flex duct from a reputable supplier often outperforms what builders installed originally. Same for duct sealing mastic – we use a commercial-grade mastic that stays flexible and holds in Alpharetta’s summer heat.

On repair versus replace: we always clean and test before recommending replacement. A blower wheel packed with dust is a cleaning job, not a replacement job, unless the wheel is cracked or the motor shows signs of overheating. A frozen coil gets cleaned and the airflow issue corrected before anyone talks about a new coil. We’d rather hand you a written price for the fix than sell you a component you don’t need. Call (762) 769-7145 before you authorize a replacement quote from anyone else.

Our Lennox Service Process – Step by Step

1. 1
   Diagnosis and airflow measurement. We start by measuring static pressure and airflow at the returns and supplies. On a Lennox SLP98V, that means reading the blower’s CFM output against factory spec. Roy’s rule: if the blower says 1,400 CFM but the rooms feel starved, the problem is in the ducts, not the furnace.
2. 2
   Camera inspection of the plenum and main trunk. We run a small camera into the return plenum and supply trunk to see what we’re dealing with before we start. On Alpharetta homes with original flex duct, this is where we find the crushed runs, the disconnected joints, and the mold patches that a blind cleaning would miss.
3. 3
   Negative-air cleaning with rotary brush agitation. We set up a Nikro negative-air machine at the air handler, then work each run with a Rotobrush rotary brush system. The negative pressure means dust and debris get pulled out of the home, not blown into it. Every register and return gets worked, including the ones in finished basements and attics that other crews skip.
4. 4
   Evaporator coil and blower cleaning. The coil gets an OEM-safe Lennox coil cleaner that breaks down pollen paste without etching the fins. The blower wheel gets hand-cleaned blade by blade. This is the step that fixes the weak-airflow complaints we hear most in Alpharetta.
5. 5
   Duct sealing and system test. We seal leaking return cans and loose duct joints with mastic, then re-measure airflow at every register. The before-and-after numbers are written on your invoice. If the system doesn’t hit the airflow target we set at the start, we don’t consider the job done.

Lennox Products We Service & Install in Alpharetta

We service the full range of Lennox residential equipment installed across Alpharetta: the Dave Lennox Signature Collection including SLP98V variable-speed gas furnaces and CBA series air handlers, the Elite Series including EL296V high-efficiency furnaces and matching cased coils, and the Merit Series including ML180 standard gas furnaces. We also clean and seal the duct systems connected to all of the above. We stock common Lennox filter sizes for one-inch and media cabinets, OEM-safe coil cleaners, and a selection of flex duct, mastic, and grille hardware so most jobs don’t wait on a parts order. If you’re not sure which series you have, the model sticker inside the furnace cabinet will tell us, and you can read it to us over the phone at (762) 769-7145.

We Also Service These Brands

Lennox is a significant share of what we clean in Alpharetta, but it’s not the only equipment in this market. We service Trane and Carrier systems with the same process and the same written price guarantee. If you have a mixed system – a Carrier condenser with a Lennox furnace, which happens more often than homeowners realize – we can handle the whole duct system in one visit.

FAQs – Lennox Air Duct Cleaning Service in Alpharetta

Book Your Lennox Service in Alpharetta, GA

We serve Alpharetta and the surrounding area with written prices, background-checked uniformed technicians, and a 365-Day Done Right Promise on every job. If the work fails within a year, we come back and make it right at no charge. Call (762) 769-7145 to get your Lennox system on the schedule. A live person answers, day or night.

Written by Roy Castellanos, Owner at Hollis Air Duct Alpharetta, serving Alpharetta since 2004.