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 Suwanee, GA | Hollis Air Duct Alpharetta
We clean and seal Lennox duct systems throughout Suwanee, and the single thing that separates our work here is this: most Suwanee Lennox homes have return-side leaks pulling attic air back into the system, so a basic cleaning won’t hold. We find and seal those leaks while we’re in there. Roy Castellanos, our owner, spent the better part of two decades cleaning duct systems in Alpharetta before expanding to Suwanee, including older two-story homes near Windward Parkway where the debris told its own story. Call (762) 769-7145 for a free estimate on Air Duct Cleaning - Suwanee, and we’ll give you a written price before any work starts.
Why Suwanee Residents Choose Us for Lennox Service
We’re independent. That means no manufacturer affiliation, no authorized-dealer markup, and no pressure to replace a system that still has years of life. What we bring to your Lennox system is working knowledge: we’ve opened enough Elite Series and Merit Series returns in Suwanee to know exactly where these setups fail. Roy built Hollis Air Duct around one standard – every register and return gets checked, not just the ones easy to reach. Our Lennox sales & service work starts with the full loop: supply runs, return runs, plenums, coil, and filter housing.
We’re part of the Garrison Partners family, and we operate under The Garrison Standard. That means the price is written before we touch anything, the technician shows up inside the promised window, and the site is left clean. Every job carries our 365-Day Done Right Promise. If the work fails within a year, we come back at no charge, including a free second visit. No fine print. It’s written on every job ticket.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Suwanee
Here’s what we see most often in Suwanee Lennox homes. Each one ties back to how these systems are built and what this climate does to them.
- Flex duct sagging and kinking in attic runs. Suwanee homes built from the 1990s onward typically use flexible ducting in the attic. Georgia heat softens the outer jacket over time, and runs that were barely supported from day one start to sag. A kinked flex duct can cut airflow by 30% or more, which means your Lennox air handler works harder and dust settles faster. We straighten what’s salvageable and replace what isn’t, using genuine Lennox or OEM-grade flex sections.
- Return-side leaks pulling attic air into the plenum. This is the big one in Suwanee’s newer subdivisions. Builders seal returns quickly, if at all. Within months, the negative pressure on the return side starts drawing attic insulation, pollen, and construction dust straight into your Lennox system. You clean the ducts and the dust is back in weeks. We find the leak points with a smoke pencil or pressure test, then mastic-seal them properly.
- Evaporator coil fouling from pollen and humidity. Suwanee’s long pollen season runs spring through fall, and the humid subtropical climate means your Lennox coil stays damp for months. Pollen sticks to the wet coil, then drywall dust and pet dander join it. The result is a caked coil that reduces cooling efficiency and pushes a musty odor through the house. We clean coils with Lennox-approved evap cleaner, not just whatever’s in the van.
- Condensate drain clogs from mold and dust buildup. High humidity plus dust equals sludge in the drain pan and line. When the condensate backs up, it overflows into the air handler cabinet or surrounding drywall. That moisture then becomes a secondary source of contamination for your ducts. We clear the drain and, when needed, treat the pan with an antimicrobial designed for HVAC use.
- ‘New house dust’ that won’t quit. In Suwanee’s newer Lennox installations, we hear the same complaint over and over: the house is two years old, the ducts were cleaned once, and the dust is already back on the registers. It’s almost always return-side leakage. Fresh construction dust sits in the attic, the return pulls it in, and the cycle repeats. Fix the return, fix the problem.
Lennox Service in Suwanee: What Local Conditions Mean for Your Equipment
Suwanee has added over 2,000 homes since 2020, and that construction boom leaves a specific mark on Lennox systems. In subdivisions like Settles Bridge, we routinely find returns that were sealed in a hurry or not sealed at all. The attic air these returns pull in isn’t clean attic air, either. It carries fiberglass insulation particles, drywall dust from neighboring construction, and oak and pine pollen from Suwanee’s tree canopy. A Lennox air handler pulling that mixture runs dirtier from day one. The filter clogs faster, the blower wheel collects a fine gray coating, and the coil loses efficiency. That’s why we tell Suwanee Lennox owners the same thing: if your ducts were cleaned and the dust came back within months, the cleaning wasn’t the issue. The return side is.
In the Riverside Overlook neighborhood off McGinnis Ferry Road, our tech uncovered a Lennox EL296V furnace with a return plenum that was never sealed after construction. Flex duct in the attic had kinked in two places, and the evaporator coil was caked with a mix of pollen and drywall dust. We straightened the flex, mastic-sealed the return, and cleaned the coil with a Lennox-approved evap cleaner. Airflow jumped from 1,150 to 1,480 CFM, and the homeowner’s daughter stopped waking up congested. That’s the difference between a cleaning and a fix.
Lennox Models & Products We Service in Suwanee
We work on the full Lennox range you’ll find in Suwanee homes. The Elite Series, including the EL296V two-stage variable-speed furnace, shows up constantly in newer construction and resales. The Merit Series, like the ML180, is the workhorse in starter homes and mid-range builds. The Dave Lennox Signature Collection, including the SLP98V, appears in higher-end Suwanee homes where air quality expectations run higher. We also service Lennox Healthy Climate filtration, including HC10 and HC16 media filter housings, and we’ll explain plainly whether your filter setup is doing enough for this pollen load.
For parts, our policy is simple. We use genuine Lennox or equivalent OEM-grade components for repair work like flex duct sections, coil treatments, and sealants. We repair before we replace on Lennox systems under 12 years old when the cabinet and blower are in good shape. And we never mark up an obscure component when a proven aftermarket alternative meets spec. That’s the standard Roy set from the beginning.
See the difference
Before
After
Before
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Before
AfterLennox Service Pricing in Suwanee
Air duct cleaning for a typical Suwanee Lennox home runs $450 to $800 for a full system, depending on square footage, the number of returns, and how much buildup we’re dealing with. Flex duct repair is separate, usually $150 to $400 per section replaced, and duct sealing runs $300 to $700 depending on access and how many leaks we’re chasing. If the coil needs cleaning, that typically adds $150 to $350, and we’ll show you photos before and after so you know exactly what was done.
What drives the cost in Suwanee specifically? Attic access. Most Lennox ducts here run through hot attics with blown-in insulation, and working in those spaces takes time. We don’t rush it, and we don’t quote a teaser price that jumps when the tech arrives. Call (762) 769-7145 for a free estimate. The price we write down is the price you pay.
Serving Suwanee, GA - Our Local Coverage Area
We’re based in the Suwanee 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 Suwanee
Because the musty smell is usually coming from the evaporator coil, not the ducts themselves. Suwanee’s humidity keeps the coil damp for months, and pollen and dust collect on it. A basic duct cleaning never touches the coil, so the odor returns within days or weeks. We clean the coil as part of our Lennox duct service. Call (762) 769-7145 for an exact quote, and we’ll confirm whether the coil is the source before quoting anything.
It depends on the severity of the sag and whether the inner liner is intact. A sag that hasn’t kinked can often be corrected by adding proper support straps and adjusting the run. A kinked section, or one where the inner liner has separated from the insulation layer, needs replacement. We’ll show you photos of the actual ductwork so you can see what we’re seeing, then give you a written price for either option. No upsell, just what the duct actually needs.
For a new Suwanee Lennox home, we recommend inspecting the return side within the first 12 to 18 months, even if the ducts themselves don’t look dirty. Construction dust and insulation fragments settle into the return plenum and get pulled in on day one. If we find return-side leaks, sealing them early prevents a permanent dust cycle. After that initial inspection and cleaning, a 3 to 5 year interval is reasonable for most homes, depending on pets, allergies, and how much the system runs. Call (762) 769-7145 and we’ll give you an honest read on whether it’s time.
Yes, but only if the return side is sealed and your filtration matches the load. Cleaning removes the pollen already in the ducts and coil. But if Suwanee pollen is reappearing within weeks, the pollen is entering through return-side leaks or inadequate filtration, not just settling in the ducts. We address both: seal the return, clean the system, and recommend a filter setup like the Lennox Healthy Climate HC16 media filter if your current setup is undersized for this pollen season. Call (762) 769-7145 for an assessment that covers the whole loop.
Yes. Lennox warranties cover equipment defects, not cleaning or maintenance. An independent company performing duct cleaning, coil service, or duct sealing does not void your Lennox warranty, provided the work doesn’t alter the equipment itself. We use genuine Lennox or OEM-equivalent parts on any repair, and we document everything. If you have a specific warranty concern, call (762) 769-7145 and we’ll walk you through what applies to your model.
Service Areas Near Suwanee
We serve Suwanee and the surrounding area, including Suwanee service area neighborhoods throughout the city. Our coverage extends to Lennox service in Alpharetta, where Roy has worked for nearly two decades, and up to Lennox service in Cumming for homes along the GA-400 corridor. If you’re in Canton, Druid Hills, or Fair Oaks, call us. We’ll give you the same written price and the same 365-Day Done Right Promise.
Book Your Lennox Service in Suwanee Today
Call (762) 769-7145 for a free estimate on our Dryer Vent Cleaning in Suwanee, flex duct repair, or duct sealing. We’ll answer the phone, schedule a window, and show up ready to work. Written price first. Done right, or we come back free.
Written by Roy Castellanos, Owner at Hollis Air Duct Alpharetta, serving Suwanee since 2004.