Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Lennox Air Duct Cleaning in Alpharetta, GA | Hollis Air Duct Alpharetta
We provide independent Lennox air duct cleaning across Alpharetta, and the one thing that sets our work apart here is how we handle this city’s pollen load and kitchen-return grease. Lennox systems in Alpharetta run hard through long springs and humid summers, and their ductwork collects more debris than most homeowners realize until airflow drops or a blower starts short-cycling. Hollis Air Duct Alpharetta has cleaned and sealed duct systems in Alpharetta since 2004, and we know exactly what a zoned Lennox Elite or Dave Lennox Signature system needs in this climate. If your registers are dusty or your variable-speed blower sounds like it’s working harder than it should, call (762) 769-7145 for a written estimate before any work starts.
Why Alpharetta Residents Choose Us for Lennox Service
Roy Castellanos has spent the better part of two decades cleaning duct systems across Alpharetta, including a stretch of older two-story homes near Windward Parkway where the debris buildup told a story about exactly how long those systems had been ignored. He completed his HVAC coursework at Los Angeles Trade-Technical College before relocating to Georgia, and he built Hollis Air Duct around one standard: every register and return gets checked, not just the ones easy to reach.
We work on Lennox equipment in Alpharetta daily, so we know the quirks of the Elite Series and Dave Lennox Signature Collection. We’re an independent Lennox service provider, not manufacturer-affiliated or authorized, which means we answer to you and to The Garrison Standard, not to a corporate script. Every job gets a written price before we touch anything, background-checked uniformed technicians, and the 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. Our equipment roster includes Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell and Aprilaire. That’s professional-grade gear, not hardware-store rental equipment.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Alpharetta
Here’s what we see in Lennox systems throughout Alpharetta, tied to the specific ways this city’s climate and housing stock stress ductwork:
- Pollen-loaded blower wheels and evaporator coils in zoned systems. Alpharetta’s pine and oak pollen seasons are long and intense. On zoned Lennox Elite and Signature systems, pollen works past filters and cakes onto blower wheels and evaporator coils, reducing airflow and triggering short-cycling. We clean both the coil and the blower assembly, then confirm airflow before we leave.
- Condensation-driven mold in flexible ductwork. Lennox variable-speed blowers run long, low-speed cycles by design, which saves energy but moves cooler air through ducts slowly. In humid Alpharetta basements, that creates condensation on flex duct surfaces, and mold follows. We treat this with negative-air cleaning and, where needed, duct sealing to stop moist air infiltration.
- Grease coating on return ducts near Windward kitchens. Homes in Windward and other master-planned Alpharetta communities often have return registers placed close to kitchens. Grease-laden air gets pulled into the return side and coats duct walls and blower assemblies faster than in Roswell or Milton. We see this pattern constantly, and it’s why we recommend return duct cleaning and coil treatment more frequently for Alpharetta homeowners with this layout.
- Fiberglass duct liner deterioration in 1990s Lennox packaged units. Alpharetta has a large stock of 1990s homes with original Lennox packaged systems. The fiberglass liner inside those units breaks down over time and releases particles into the supply air. We identify this during inspection and remove or seal deteriorated liner material as part of the cleaning.
- Restricted airflow mimicking motor failure. Before you spend thousands replacing a Lennox variable-speed blower, check the ducts. We’ve diagnosed many Alpharetta systems where dirty coils and clogged returns made the blower work so hard it sounded like a failing motor. After cleaning and sealing, the short-cycling stopped. Airflow issues often look like motor problems. We’d rather clean first and save you the parts cost.
Lennox Service in Alpharetta: What Local Conditions Mean for Your Equipment
Alpharetta’s Windward community has a higher concentration of homes with returns placed near kitchens than you’ll find in Roswell or Milton, and that single architectural detail changes how often Lennox ductwork needs attention here. Grease from daily cooking gets pulled into the return path, coats the duct walls, and eventually reaches the blower wheel and evaporator coil. On a Lennox Elite Series system in a Windward home, our tech found exactly this: the kitchen return had pulled enough grease into the return ducts that the variable-speed blower was short-cycling. We used video inspection to show the homeowner the buildup, cleaned the return ducts and blower wheel, and applied a coil treatment to the evaporator coil. After sealing the ducts with mastic, airflow was restored and the blower stopped short-cycling. For Alpharetta homeowners in Windward or any neighborhood with kitchen-adjacent returns, return duct cleaning and coil treatment are simply needed twice as often as they would be in a neighboring town. That’s not a sales pitch. It’s what the grease tells us.
Lennox Models & Products We Service in Alpharetta
We clean duct systems on the full Lennox residential lineup: Merit Series, Elite Series, and Dave Lennox Signature Collection equipment, including SLP98V gas furnaces, XC25 variable-capacity air conditioners, and the zoned air handlers commonly paired with them. When we replace filters or apply coil cleaning agents, we prefer OEM Lennox products to preserve warranty and performance. For repairs like flex duct replacement or mastic sealing, we use high-quality aftermarket flex duct and mastic where OEM isn’t required, because the aftermarket products perform equal or better at a lower price. We stock common filter sizes and flex duct locally so Alpharetta jobs don’t stall waiting on a parts truck from Atlanta.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in Alpharetta
- Whole-house duct cleaning (single-zone Lennox system, up to 10 vents): $425 – $575
- Zoned Lennox system with 12 – 18 vents and two air handlers: $550 – $775
- Evaporator coil cleaning (add-on or standalone): $150 – $275 per coil
- Blower wheel cleaning: $100 – $200
- Duct sealing with mastic (per accessible section): $18 – $30 per linear foot
What drives the price is system size, zone count, and how much buildup has accumulated over the years. A Windward home with kitchen-adjacent returns will cost more than a single-return system in a newer build, simply because the grease adds labor time. What you get with any quote from us is one flat price per system, written down before we start, and covered by the 365-Day Done Right Promise. No per-vent pricing games. Call (762) 769-7145 for a free estimate; we’ll walk the system with you and give you the number in writing.
Serving Alpharetta, GA - Our Local Coverage Area
We’re based in our Alpharetta service 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 Air Duct Cleaning in Alpharetta
Every 2 to 3 years is realistic for Windward and other Alpharetta neighborhoods with returns near kitchens, because grease buildup on return ducts and the blower assembly happens faster than in homes with returns placed away from cooking areas. If you cook frequently or fry often, lean toward 2 years. Call (762) 769-7145 and we’ll inspect the return side and tell you honestly whether it’s time.
Yes. A clean evaporator coil exchanges heat more efficiently, which lets our Lennox specialists tune the variable-speed blower to manage moisture properly during Alpharetta’s humid months. A coil caked with pollen and grease can’t pull humidity the way it should, and you’ll feel it indoors. Coil cleaning is part of our standard duct cleaning package when the coil is accessible.
Yes. We clean each zone separately with the dampers set in the open position, and our techs are trained on zoned Lennox Elite and Signature systems. The dampers are not removed during cleaning, and we verify they still open and close correctly before we finish. If a damper was already failing before we arrived, we’ll show you and give you a written price to address it.
Condensation. Alpharetta’s humid subtropical climate means basement air stays damp for much of the year, and when Lennox variable-speed blowers push cool air through flex ducts slowly, moisture condenses on the duct surface. Mold follows where moisture lingers. We clean the affected duct with negative air and seal gaps with mastic so warm, moist air stops entering the duct path. For homes needing Air Duct Cleaning - Alpharetta with finished basements, this is one of the most common issues we address.
If the flex duct is torn, collapsed, or shows mold growth inside the inner liner, replacement beats sealing. If the duct is structurally sound but leaking at joints, mastic sealing is the better value. We’ll show you video from inside the duct so you can see the condition yourself before deciding. Call (762) 769-7145 and we’ll walk you through what we find.
Service Areas Near Alpharetta
Hollis Air Duct Alpharetta serves homes throughout Alpharetta and the surrounding north metro. If you’re in Cumming, we provide Lennox service in Cumming with the same written pricing and guarantee. In Suwanee, we offer Lennox service in Suwanee for zoned and single-zone systems alike. We also serve Canton, Druid Hills, and Fair Oaks. If you’re not sure whether you’re in our area, call (762) 769-7145 and a live person will tell you.
Book Your Lennox Service in Alpharetta Today
If your Lennox system is short-cycling, your registers are dusty, or you’ve noticed a musty smell from the vents in your Alpharetta home, call (762) 769-7145. We answer the phone with a live person, give you a written price before any work starts, and stand behind the job for a full year. Roy and the team at Hollis Air Duct Alpharetta are ready when you are.
Written by Roy Castellanos, Owner at Hollis Air Duct Alpharetta, serving Alpharetta since 2004.