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.
Why Marietta Homeowners Choose Lennox Air Duct Cleaning
Lennox in Marietta air duct cleaning addresses a specific problem: high-efficiency Lennox furnaces and air handlers move air differently than standard units, and when their ductwork is dirty or leaking, you feel it immediately in comfort and utility bills. We’re an independent Lennox service provider in Marietta, not a factory-authorized dealer, which means we diagnose your system without any obligation to sell you new equipment. Our technicians work on Lennox Signature, Elite, and Merit systems across Cobb County every week, and we bring that accumulated experience to every job. Call (912) 405-8840 to talk through what your Lennox system is doing, or not doing, and we’ll give you a straight answer.
Why Trust Linden Air Duct Marietta for Your Lennox Air Duct Cleaning?
Lennox builds some of the most efficient residential HVAC equipment in the industry, and that efficiency depends on clean, sealed ductwork. The variable-speed blowers in the SL280V and SL98V move more air through tighter spaces than older single-stage furnaces ever did. That’s exactly why we send our technicians to Lennox-specific training on airflow diagnostics, blower wheel service, and coil cleaning protocols. Marcus Veale, owner of Linden Air Duct Marietta, completed his HVAC coursework at Los Angeles Trade-Technical College and has spent well over a decade working on Lennox systems throughout the greater Marietta area and providing Air Duct Cleaning services. His crews have pulled some of the worst buildup our company has ever documented out of ranch homes near Kennesaw Mountain, where original ductwork from the 1970s meets modern high-efficiency Lennox air handlers. We understand how a modulating furnace behaves differently from a single-stage unit, and we clean duct systems accordingly. Every technician who arrives at your door is background-checked, identity-verified, and photo-badged under the Threshold Standard, and their name and photo are sent to you before the visit. That’s not a courtesy. That’s how we work.
Styles & brands we work with
Common Lennox Air Duct Cleaning Problems We Fix in Marietta
- Variable-speed blower wheel imbalance on SL280V and EL296V units. Lennox variable-speed blowers pull air through the return duct at higher static pressures than single-stage units. Lint, drywall dust, and pet hair accumulate on the blower wheel blades unevenly, throwing the wheel out of balance. The symptom is a low growl or whine that changes pitch as the blower ramps up. We remove the blower assembly, clean each blade with the appropriate solvent, and reinstall with the factory set-screw torque spec.
- Reduced airflow from clogged evaporator coils on high-efficiency Lennox units. Lennox coils use tight fin spacing to maximize heat transfer, which means they trap debris more readily than older coil designs. In Marietta’s humid summers, that trapped debris holds moisture and becomes a paste that blocks airflow. We perform coil cleaning with evap-safe cleaners that don’t corrode the aluminum fins, then verify the coil’s pressure drop with static pressure readings before and after.
- Duct leakage at sheet-metal-to-flex transitions on zoned systems. Lennox Harmony III zoning relies on proper duct pressure to keep zone dampers opening and closing correctly. When flex duct connects to a sheet-metal plenum with failing duct tape, air leaks into the attic or crawlspace and the zone system fights itself. We locate every transition point, remove the failing tape, and apply mastic sealant that actually cures and holds. Then we verify the static pressure lands within Lennox’s acceptable range.
- Microbial growth on heat exchanger surfaces in modulating furnaces. The ML296V and EL296V modulate their burners for longer runtimes at low fire. During Marietta’s spring and fall shoulder seasons, the air conditioner and furnace can alternate within the same week. Condensation that forms on the heat exchanger during cooling doesn’t always dry before the furnace fires again. That’s when growth starts. We inspect the heat exchanger and surrounding duct surfaces and clean with appropriately rated antimicrobial treatments when growth is confirmed.
- Fiberglass duct deterioration in Marietta’s older Lennox installations. Homes built between the 1960s and 1980s in Marietta often have original fiberglass duct board or old flexible ducts that have shed fibers into the airstream for decades. When these ducts meet a newer Lennox system, the debris ends up packed into the blower wheel and coil. We document the condition with video inspection and give you an honest recommendation: restorative cleaning where the duct is sound, replacement where it’s not.
Lennox Parts & Our Repair-vs-Replace Approach
When a Lennox duct system needs repair that touches furnace internals, we use OEM Lennox filters, access panels, and coil cleaners. These parts are engineered to the exact specifications of your system, and using them keeps your equipment running the way Lennox designed it. For non-critical duct fittings like collars, takeoffs, and flex sections, we use UL-listed aftermarket parts that match Lennox sheet-metal gauge and sizing. We stock common Lennox-compatible parts locally in Marietta, which means most repairs don’t wait on a parts house in Atlanta. Our repair-vs-replace decision is simple: if a duct section or component can be cleaned and sealed to restore factory airflow, we repair it. We only recommend replacement when contamination is too deep for restorative cleaning or the duct has physically collapsed or separated. Tell us what’s in the system before you tell us what it costs to fix it. We’ll show you the video evidence for every recommendation we make, then put the price in writing before any work begins. Call (912) 405-8840 to schedule a Lennox duct inspection.
Our Lennox Service Process – Step by Step
- 1
Diagnosis with video inspection. We map the entire duct system, not just the returns. On Lennox systems, we pay particular attention to flex-to-plenum connections and blower wheel condition because those are where the real problems hide. You see the footage before we write a single line-item.
- 2
Repair and sealing. We remove failing duct tape and apply mastic sealant to every transition point. For evaporator coil cleaning, we use Lennox-safe cleaners and follow the manufacturer’s fin spacing guidelines. Blower cleaning includes removing the wheel and cleaning each blade individually, not just spraying the housing.
- 3
System testing. We take static pressure readings before and after the work. On variable-speed Lennox systems, this is the only way to confirm the blower is operating within the manufacturer’s parameters. If the numbers don’t match, the job isn’t done.
- 4
Written warranty and follow-up. Every air duct repair we perform in Marietta carries a written guarantee, and if a covered repair doesn’t hold, we return at no charge. You get the warranty in writing before we leave the driveway, not as a verbal promise.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Marietta
Our Marietta technicians service Lennox duct systems connected to the full residential line. That includes the Dave Lennox Signature Collection, notably the SL280V and SL98V variable-speed gas furnaces paired with S30 smart thermostats. We also work on Elite Series equipment like the EL296V and EL195V, and Merit Series units like the ML180V and ML296V. We stock common Lennox-compatible air filters, coil cleaners, and duct fittings locally, so service on any of these systems moves without waiting on Atlanta parts distributors.
We Also Service These Brands
Most Marietta homes don’t run a single brand across the whole system. We service Trane and Carrier duct systems alongside Lennox, and we often find mixed-equipment houses where the furnace is a Trane, the air conditioner is a Carrier, and the ductwork was installed for whichever system came first. Our diagnostic process doesn’t depend on the badge on the cabinet. It depends on airflow, static pressure, and the condition of the ductwork itself.
FAQs – Lennox Air Duct Cleaning Service in Marietta
No. We are an independent Lennox service provider in Marietta, not a factory-authorized dealer. This means we diagnose and repair Lennox duct systems without any incentive to sell you new equipment. Our recommendations are based on what your system actually needs, verified by video inspection and static pressure readings.
For anything that touches furnace internals, we use OEM Lennox parts including filters, access panels, and coil cleaners. For non-critical duct fittings like collars and flex sections, we use UL-listed aftermarket parts that match Lennox sheet-metal specs. We’ll always tell you which parts are OEM and which are not before we install them.
A full Lennox duct cleaning with coil and blower service in Marietta typically takes four to six hours depending on the size of the home and the condition of the system. A video inspection with static pressure readings takes about an hour. We schedule in blocks, not windows, so you know what to expect. Call (912) 405-8840 for a time estimate for your specific system.
We service Lennox Signature Collection, Elite Series, and Merit Series systems, including the SL280V, SL98V, EL296V, EL195V, ML180V, and ML296V. Our technicians are trained on the airflow characteristics of each line, so we know how a variable-speed blower on an SL280V should perform versus a fixed-speed Merit Series blower.
No. Duct cleaning, coil cleaning, and duct sealing do not void a Lennox equipment warranty when performed correctly. We use OEM parts where factory warranty coverage could be affected and follow manufacturer service guidelines. We’re happy to document every procedure in writing for your records.
Lennox in Douglasville and Marietta air duct cleaning typically runs $450 to $850 for a full system depending on home size, number of returns, and whether you’re adding coil or blower cleaning. Duct sealing is priced per job after we map the leaks. We put the exact price in writing before any work begins, so there’s no surprise invoice on the back end. Call (912) 405-8840 for a free estimate on your Lennox system. Marcus will walk you through what we find before we ever write up a ticket.
Book Your Lennox Service in Marietta, GA
If your Lennox system is moving less air than it should, making noise it didn’t make before, or if you simply haven’t had the ducts cleaned since you bought the house, call (912) 405-8840. We’ll send a technician whose name and photo you’ll have before the visit. You’ll get a written price before work starts and a written guarantee when it’s done. That’s how we’ve done it in Marietta since 2004.
Written by Marcus Veale, Owner at Linden Air Duct Marietta, serving Marietta and the East Cobb corridor since 2004.