Whole-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.
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AfterFast, Reliable Air Duct Cleaning Across Knoxville
Air duct cleaning in Knoxville typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, and our crews serve Knoxville from our Memphis dispatch office, handling everything from historic bungalows in Old North Knoxville to ranch homes in Fountain City and West Hills. Call us at (361) 326-5060 for a free estimate with a written price before any work starts.
Knoxville’s mix of pre-1920 mill houses, mid-century ranches, and river valley humidity creates duct problems you won’t find in newer cities. We’ve cleaned ducts coated with yellow-green pollen film from the Great Smoky Mountains and corroded sheet metal runs that have leaked for decades. Our Air Duct Cleaning team uses Rotobrush rotary systems and Nikro negative-air machines to remove what’s actually in your ducts, not just vacuum the easy spots.
Why Hollis Air Duct Cleaning Is Knoxville’s Preferred Air Duct Cleaning Company
We’ve been part of the Garrison Partners family since 2004. That track record predates most duct cleaning outfits in East Tennessee. When you call Hollis, a live person answers the phone, 24 hours a day. No voicemail loops, no callback queues, no waiting until Monday for a scheduling window.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. They operate under The Garrison Standard: arrive inside the quoted window, price the job in writing before touching equipment, complete the work by the book, and leave the site clean. Every job carries our 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.
We know Knoxville’s housing stock because we clean it weekly. The original sheet metal in Fourth and Gill bungalows behaves differently than the flexible duct runs in 1960s West Hills ranches. That local knowledge means we bring the right tools and don’t waste your time with guesses.
Ductwork Cleaning in Knoxville
Ductwork Cleaning in Knoxville means source removal from supply and return runs that have accumulated decades of pollen, mold spores, and construction debris. We use a Rotobrush rotary brush system to agitate debris off duct walls, paired with a Nikro negative-air machine that pulls contaminants out of your home entirely through HEPA filtration. A typical residential Ductwork Cleaning in Knoxville runs $350 – $550 for a standard system, with larger homes or heavily contaminated ductwork reaching $650.
Most Knoxville homeowners need this service every 3 – 5 years, sooner if they notice musty odors, visible dust from registers, or worsening allergy symptoms after the spring pollen season.
Supply Duct Cleaning
Supply ducts push conditioned air into your rooms. In Knoxville, these runs often carry that fine yellow-green pollen film from the Smokies, especially in homes with original sheet metal that hasn’t been cleaned in decades. Our rotary brush system breaks the bond between debris and duct wall, then negative pressure extracts it through filtered collection.
Return Duct Cleaning
Return ducts pull air back to your HVAC system, making them the first collection point for dust, pet dander, and pollen. In older Knoxville homes near the Tennessee River, we’ve found returns pulling humid, moldy air through corroded seams in crawl spaces. Cleaning the return path is essential, but sealing those leaks is often what actually fixes the problem.
Air Duct Inspection in Knoxville
Air Duct Inspection in Knoxville starts with a video camera fed through your duct runs to document what we’re dealing with before we quote a price. You’ll see the footage. We look for corrosion in original sheet metal, sagging flexible duct, disconnected runs at the air handler, and biological growth from Knoxville’s humid climate. A standalone Air Duct Inspection in Knoxville costs $150 – $250, though we apply this fee toward your cleaning if you proceed with the work.
We recommend an inspection before buying any older home in Knoxville, particularly pre-1950 properties in Old North Knoxville or Fourth and Gill where original ductwork may be failing.
Video Documentation
Our inspection cameras record high-resolution footage of your duct interior. You see the same thing we see: pollen accumulation, corrosion spots, disconnected joints, or crushed flexible runs. No guesswork, no surprises after we start.
Written Repair Plan
After inspection, we provide a written plan with line-item pricing for cleaning, sealing, or duct replacement if needed. The price is fixed before work begins. It does not move at the door.
Trusted Brands We Service in Knoxville
We clean and service systems with filtration components from Honeywell, Aprilaire, and Abatement Technologies. These are the same brands commercial HVAC crews use in hospitals and schools, not hardware-store substitutes. For Knoxville homeowners, this means replacement filters and parts that fit correctly the first time, with no ordering delays. Our equipment roster includes Rotobrush rotary brush systems for agitation cleaning and Nikro negative-air machines for containment. We explain what each tool does and why we’re using it on your specific duct type before we start.
Common Air Duct Cleaning Problems We See in Knoxville Homes
- Corroded original sheet metal in pre-1920 homes. Ducts in mill houses and bungalows near the Tennessee River have corroded from decades of humidity and river valley fog. The seams leak, pulling moldy crawl space air into your living space. Cleaning helps, but sealing with mastic and mesh is what restores pressure and stops the infiltration.
- Sagging flexible duct in mid-century ranches. Homes built in Fountain City and West Hills between 1950 and 1970 often have flexible duct runs that have sagged over time, creating debris traps and airflow restrictions. We find these disconnected at the air handler more often than you’d expect.
- Yellow-green pollen biofilm from the Smokies. Spring pollen from the Great Smoky Mountains coats Knoxville duct interiors with a sticky film that standard vacuuming won’t touch. It requires rotary brush agitation and HEPA-filtered extraction to remove completely.
- Mold and mildew from humid valley conditions. Knoxville’s humid subtropical climate and high annual rainfall create ideal conditions for biological growth inside ductwork, especially in homes with poor attic or crawl space ventilation. We document this during inspection and address it during cleaning.
Pricing for Air Duct Cleaning in Knoxville, TN
Most full-system residential air duct cleaning jobs in Knoxville fall between $350 and $650. Here’s how that breaks down:
| Service | Typical Range |
|---|---|
| Standard residential duct cleaning (up to 12 vents) | $350 – $450 |
| Larger home or heavily contaminated system | $450 – $650 |
| Air Duct Inspection with video | $150 – $250 |
| Duct sealing (mastic and mesh, per system) | $200 – $400 |
What moves the price: number of vents and returns, accessibility of duct runs, contamination level, and whether sealing or repair work is needed. We do not price per vent. One flat price per system, agreed in writing before work starts. No add-ons at the door. Call (361) 326-5060 for a free estimate.
We Also Serve Cities Near Knoxville
Our crews regularly work in Knoxville and surrounding communities including Powell, Seymour, Louisville, and Clinton. Scheduling and dispatch are coordinated from our Memphis office, with local technicians serving each area. The same written pricing, background-checked crews, and 365-Day Done Right Promise apply in every community we serve.
Serving Knoxville, TN - Our Local Coverage Area
We’re based in the Knoxville 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 About Air Duct Cleaning in Knoxville
It’s spring pollen from the Great Smoky Mountains, carried by prevailing winds into the Tennessee Valley. The pollen settles in ductwork as a fine yellow-green film that bonds to metal and flexible duct walls, especially in homes that haven’t been cleaned in years. Standard vacuuming won’t remove it. We use rotary brush agitation and HEPA-filtered negative pressure to extract it completely. Call (361) 326-5060 for an inspection if you see dust with that distinctive tint around your registers.
Often yes. Pre-1920 homes in Old North Knoxville and Fourth and Gill frequently have original sheet metal ducts with corroded seams and disconnected runs. Cleaning removes the debris, but sealing with mastic and mesh stops the leaks that pull humid, moldy air from crawl spaces. We inspect for this during every job and include sealing in our written quote if needed.
Knoxville’s humid subtropical climate and river valley fog accelerate corrosion in metal ducts and promote mold growth in fiberglass-lined or flexible duct systems. High humidity also makes pollen and debris stickier, harder to remove without proper agitation. We account for this by using equipment and techniques designed for Southern Appalachian conditions, not dry-climate methods.
Yes, and we do it regularly. Flexible duct runs in 1950s-1970s ranches in Fountain City and West Hills require careful handling, aggressive brushing can tear the liner. We adjust our Rotobrush speed and use lower-pressure negative air to clean thoroughly without damage. If the flex duct has sagged or disconnected, we’ll show you on camera and quote repair or replacement separately.
A technician feeds a video camera through your supply and return runs, documenting debris levels, corrosion, disconnections, and biological growth. You’ll see the footage. We then provide a written plan with fixed pricing for any recommended work. The inspection takes 45-60 minutes and costs $150 – $250, applied toward your cleaning if you proceed. Call (361) 326-5060 to schedule.
In a 1920s bungalow near Fourth and Gill, our tech found the original sheet metal supply and return ducts coated with a yellow-green pollen film from the Smokies and corroded at the seams from decades of river valley fog. Using a Rotobrush and negative pressure setup, we performed source removal, then sealed the disconnected runs with mastic and mesh. The homeowner immediately noticed better airflow and less musty odor from the registers.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Knoxville and surrounding communities.