Lennox Air Duct Cleaning in Kennesaw, GA | Everest Air Duct Cleaning Service Georgia
Independent Lennox air duct cleaning service in Kennesaw typically runs $350–$650 for a full residential system, with same-day scheduling available across the 30144 and 30152 ZIP codes. We’re not a manufacturer-authorized dealer — we’re Everest Air Duct Cleaning Service Georgia, an owner-operated specialist that’s been crawling through Kennesaw attics and repairing Lennox flex-duct systems for two decades as Lennox specialists. Scott Gray handles every job personally, bringing 20 years of hands-on experience to homes from Barrett Parkway to Bells Ferry Road. Call (877) 565-7296 for a free estimate.

Why Kennesaw Residents Choose Us for Lennox Service
Scott Gray has been crawling through attics and chasing ductwork leaks in Georgia homes for over 20 years, and most of his customers in the Decatur area know him by first name before the job is done. He got his start in HVAC fundamentals at Georgia Piedmont Technical College, where a hands-on instructor convinced him that the air inside a house tells you everything you need to know about how well it’s being maintained. That same direct assessment style is what Kennesaw Lennox owners get when they call us for Lennox repair in Marietta and surrounding areas.
We know the Merit, Elite, and Signature Series duct configurations that builders installed across Kennesaw’s 1985–2005 subdivisions. We’ve replaced enough original flex-duct boots in Legacy Park and West Cobb to recognize the pattern before we even pull the attic ladder down. Our equipment — Rotobrush contact-cleaning systems, Nikro HEPA vacuums, Abatement Technologies air scrubbers — matches what commercial remediation crews use for our Air Duct Cleaning in Kennesaw, because the pollen and humidity load in Kennesaw’s Georgia Piedmont climate demands that level of extraction.
433 neighbors have rated us 4.9 stars — the numbers speak for themselves. More importantly, those reviews reflect something rare in this trade: the owner shows up. Scott Gray works every job directly. Your home gets two decades of crawlspace-level experience at the door, not a franchise subcontractor learning on your clock.
Common Lennox Air Duct Cleaning Problems We Solve in Kennesaw
- Boot separation at upstairs registers. In Kennesaw’s Barrett Parkway-area subdivisions, original 1990s Lennox flex-duct boots have pulled away from drywall collars after three decades of 100°F+ attic heat cycling. The hardened mastic and broken foil tape seal dump unconditioned attic air — and insulation fibers — straight into bedrooms. We re-secure with high-heat mastic rated for Georgia attic conditions.
- Inner liner tears creating flap obstructions. The 140°F peak temperatures in Kennesaw’s unconditioned attics bake flex-duct liners until they crack. Torn liner material flaps inside the airstream, restricting airflow and pulling fiberglass particles into your living space. Our video inspection catches this before it becomes an air quality problem.
- Mastic failure at plenum collars. Builder-grade mastic applied in 1994 wasn’t formulated for Kennesaw’s thermal cycling. It hardens, cracks, and separates — leaking conditioned air into the attic and spiking your energy bill. We remove the old material completely and apply aftermarket mastic engineered for sustained high-heat exposure.
- Mold colonization in duct liners. Kennesaw’s eight-month pollen season combines with summer humidity to create ideal conditions inside dark ductwork. Lennox systems running continuously during peak pollen months pull that load deep into flex-duct cores where standard filters can’t reach. Our sanitizing process targets the source, not just the symptoms.
- Sagging flex-duct bends trapping debris. Stapled flex runs across Kennesaw’s large-footprint two-story homes develop low points where construction dust, pet dander, and pollen accumulate over 25–40 years. The Rotobrush system physically contacts and agitates these deposits — HEPA extraction removes them rather than redistributing.
Lennox Service in Kennesaw: What Local Conditions Mean for Your Equipment
Kennesaw’s 1985–2005 subdivision homes along the Barrett Parkway corridor were built with flex duct stapled through unconditioned attics where summer temperatures exceed 140°F — a unique condition that accelerates mastic failure and duct joint separation far faster than in other metro Atlanta areas. This isn’t theoretical. In a 1994 home off Bells Ferry Road (30144), our crew found original Lennox Merit Series flex ducts with boots completely detached from upstairs register drywall collars. The hardened mastic and failed foil tape had allowed 100°F+ attic air to dump directly into the master bedroom for years. We re-secured the boots with high-heat mastic, re-insulated the runs, and sealed the collars — restoring proper airflow and eliminating the musty odor that had plagued the homeowners.
Lennox equipment itself is well-engineered. The problem is that builder-grade installation practices in Kennesaw’s rapid-growth era paired that equipment with duct systems never designed to survive four decades in a Georgia attic. When we perform Lennox service in Woodstock and the 30152 ZIP code, we’re not just removing debris — we’re documenting the structural condition of ductwork that’s been thermally stressed since the first Bush administration. If your ducts haven’t been looked at in a decade, you don’t have an air quality problem — you have an air quality certainty.
Lennox Models & Products We Service in Kennesaw
We work on the full Lennox residential lineup: Merit Series (the builder-grade workhorse installed across most Kennesaw subdivisions), Elite Series (mid-tier systems with upgraded filtration that still share common duct configurations), and Signature Series (premium units where duct integrity matters even more for efficiency claims).
Our parts approach is straightforward. For flex-duct replacement, we source OEM Lennox replacement collars and compatible flex for exact fit and insulation R-value matching. For sealing and repair, we use high-quality aftermarket mastic and foil tape rated for sustained 150°F exposure — the specification that matters in a Kennesaw attic. We stock common Lennox boot sizes and collar diameters locally, which means most Kennesaw repairs don’t wait on shipping. Video inspection equipment lets us verify fit and seal integrity before we close the attic hatch.
Lennox Service Pricing in Kennesaw
Here’s what independent Lennox air duct cleaning service costs in the Kennesaw market:
- Standard residential duct cleaning: $350–$500 (single-system, up to 12 vents)
- Large-footprint two-story homes (typical in 30144/30152): $450–$650
- Video inspection with written assessment: $125–$175 (waived with scheduled cleaning)
- Flex-duct boot repair/replacement (per boot): $85–$150
- Duct sealing (mastic replacement, collar re-secure): $200–$400 depending on linear feet
- Antimicrobial sanitizing treatment: $75–$125 per system
What drives cost? Number of vents, attic accessibility, and whether we’re cleaning or also repairing degraded components. Most Kennesaw Lennox systems in the 25–40-year range need some level of repair beyond cleaning — we flag this during our free estimate, not after we’ve started. Call (877) 565-7296 for an exact quote. Estimates are free, and Scott Gray handles the assessment personally.
Serving Kennesaw, GA — Our Local Coverage Area
We’re based in the Kennesaw 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 Kennesaw
Your flex-duct boots have likely separated from the drywall collars. In Kennesaw’s unconditioned attics, three decades of 140°F heat cycling hardens mastic and breaks foil tape seals — unconditioned attic air dumps directly into your living space. We see this exact failure pattern weekly in Barrett Parkway-area subdivisions, and we also handle Lennox repair in Fair Oaks with the same expertise. Call (877) 565-7296 and we’ll verify with a video inspection; estimates are free.
Yes — especially in Kennesaw’s climate. Eight months of pollen plus high humidity create ideal mold colonization conditions inside flex-duct liners. Standard Lennox filters catch particles at the return, not biological growth deep in the system. Our cleaning process includes HEPA extraction, antimicrobial treatment, and Dryer Vent Cleaning — Kennesaw services targeted at the source. Call (877) 565-7296 for an assessment.
No. We access the system through existing registers and the main return plenum. For repairs, we work from the attic side. The only drywall impact would be if we find a boot fully detached and the collar needs re-securing — even then, we work through the register opening. Scott Gray will walk you through exactly what your home requires before any work begins.
Filters protect the equipment; they don’t clean the ductwork. In Kennesaw’s pollen-heavy environment, particles smaller than filter rating pass through and accumulate in flex-duct low points over 20+ years. If your home was built during the 1985–2005 subdivision boom, the duct system has never been cleaned — regardless of filter discipline. We use Rotobrush contact-cleaning and Nikro HEPA extraction to remove what filters can’t reach.
We recommend repair when liner degradation is localized and less than 30% of total run length — boot re-securing, section replacement, mastic renewal. Replacement becomes necessary when liner tears exceed that threshold or when fiberglass delamination is widespread. Our video inspection gives you the exact condition assessment with timestamps. Call (877) 565-7296 to schedule; Scott Gray will show you the footage and explain what you’re seeing.
Service Areas Near Kennesaw
We run Lennox in Acworth and service calls throughout the northwest Atlanta metro from our base near Kennesaw: Atlanta (full metro coverage), Augusta (scheduled route service), Savannah (by appointment), Columbus and Phenix City (combined service region), and Macon (central Georgia corridor). Most Kennesaw appointments book within 24–48 hours; same-day availability for urgent airflow or odor issues.
Book Your Lennox Service in Kennesaw Today
Two decades of crawlspace-level experience goes into every inspection we perform. Whether your Lennox in Powder Springs or Kennesaw system needs cleaning, repair, sealing, or a full condition assessment, Scott Gray will handle the work directly — no handoffs, no subcontractor roulette. Same-day appointments available for Kennesaw’s 30144, 30152, 30156, and 30160 ZIP codes when urgency matters. Call (877) 565-7296 now for your free estimate.
Written by Scott Gray, Owner & Lead Technician at Everest Air Duct Cleaning Service Georgia, serving Kennesaw and the greater Atlanta metro since 2004.