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 HVAC Cleaning Across Knoxville
HVAC cleaning in Knoxville means addressing what the Tennessee Valley does to a system over time: pollen from the Smokies, summer humidity that never quite breaks, and decades of dust settling into duct board, coils, and blowers. A full-system HVAC Cleaning by our team typically runs $425-$780 for a standard Knoxville home, depending on system size and what the camera shows once we open the air handler. We work in Bearden, Fountain City, West Knoxville, and Holston Hills every week. The work is documented end to end, and you get a written price before a single panel comes off. Call (806) 606-6902 to schedule an estimate.
Why CleanRun Air Duct Cleaning Is Knoxville’s Preferred HVAC Cleaning Company
Knoxville homeowners keep hiring us for one reason: we hand them photos of the inside of their own equipment before and after the work, along with a written scope and a written guarantee. That is uncommon in this trade, and it is exactly what the HVAC Cleaning industry in this market has been missing. Tomas Reyes established CleanRun in 2013 with a rule that every job carries a written price before work starts, and every visit ends with a documented photo record of every duct run and component touched. That standard applies to every single call we take in Knoxville.
Reviews from Knoxville customers consistently mention the same things: the technician was background-checked and named before arrival, the written price matched the final invoice, and the before photos made the difference obvious. Scheduling works from our Memphis office, but the crews serving Knoxville are local, uniformed, and equipped with Rotobrush and Nikro negative-pressure extraction systems. Every job is covered by the 365-Day Done Right Promise in writing. If the work isn’t right, we make it right.
Our HVAC Cleaning Services in Knoxville
Air Handler Cleaning
The air handler is the box in your attic, closet, or crawlspace that houses the blower and evaporator coil. In Knoxville, air handlers in Gold Medallion all-electric homes from the 1960s and 1970s are often packed with a mix of glass fibers from degrading duct board and fine Smoky Mountain pollen that made it through the filter. We remove the blower assembly, clean the cabinet interior with HEPA-filtered negative pressure, and document the condition of the heat strip elements. A standard air handler cleaning in Knoxville runs $225-$375.
Evaporator Coil Cleaning
The evaporator coil sits in the air handler, absorbing heat from air passing over it. When it is coated in a pollen-and-dust paste, your system runs longer to hit the same temperature. That paste is common in Knoxville because the valley holds spring oak pollen in the air for weeks. We use a two-step cleaning process: a self-rinsing coil cleaner followed by a fin comb pass to straighten bent aluminum fins. Coil cleaning in Knoxville typically costs $180-$260 for a standard residential unit.
Condenser Cleaning
The condenser is the outdoor unit, and in Knoxville it collects everything from grass clippings in West Hills to cottonwood seed fluff from along Sutherland Avenue in spring. A fouled condenser restricts airflow across the coil, driving up compressor head pressure and shortening equipment life. We shut down the disconnect, remove the fan assembly, and wash the coil from the inside out using low-pressure water and a pH-balanced cleaner. Condenser cleaning in Knoxville runs $150-$240.
Blower Cleaning
The blower wheel is the fan that pushes conditioned air through your ducts. In ranches across Fountain City and Bearden, blower wheels accumulate a hardened layer of dust, pollen, and sometimes drywall dust from past renovations. A dirty blower wheel moves less air, so rooms at the far end of the duct run never quite get comfortable. We pull the blower, clean the wheel blade by blade, check the motor’s amp draw, and reinstall with balanced mounting. Blower cleaning in Knoxville runs $160-$250 when done as part of a full HVAC cleaning.
Heat Exchanger Cleaning
On gas furnace systems, the heat exchanger is the steel chamber that transfers combustion heat to your indoor air. Soot and sulfur byproducts from natural gas can coat the exchanger over time, reducing heat transfer and making the furnace work harder. In Knoxville’s older gas furnaces, especially in homes converted from all-electric systems during the 1990s, heat exchanger cleaning is a maintenance task that often gets skipped. We clean the exterior surfaces during an HVAC cleaning visit and note any visible rust or stress cracking in the photo record. This service typically runs $120-$200.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Knoxville
We service and clean equipment from every major brand installed in Knoxville: Trane, Carrier, Lennox, Goodman, Rheem, York, American Standard, and older units from the TVA-era all-electric push. Our crews carry Rotobrush and Nikro extraction equipment, and we stock Guardsman and Honeywell replacement filters and coil treatment products on the truck for Knoxville jobs. That means we do not have to reschedule your appointment because a common part is sitting in a warehouse. If your system uses an Aprilaire or Honeywell media cabinet, we check the filter housing and seal during the visit.
Common HVAC Cleaning Problems We See in Knoxville Homes
- Crumbled fiberglass duct board in 1950s-1980s ranches. The persistent Valley humidity penetrates uninsulated crawlspaces and attic duct runs, softening the resin binder in fiberglass duct board. The interior surface then crumbles and releases glass fibers into the airstream. This is not a dirt problem, and cleaning alone will not fix it. The runs need sealing or replacement.
- Pollen paste on evaporator coils every spring. Knoxville’s bowl-shaped geography holds spring pollen from the Smokies foothills for weeks at a time. Even a MERV 8 filter lets a surprising amount of fine oak pollen through, and the wet coil turns it into a paste that cuts airflow and capacity within two or three seasons.
- Disconnected or crushed flex ducts in Gold Medallion crawlspaces. The original flex duct in a 1960s or 1970s all-electric home has a plastic inner liner that gets brittle with age. Ground movement, plumbing repairs, or a simple crawlspace inspection can knock a run loose, sending conditioned air into the dirt. We camera every run during a cleaning visit and document the condition of each connection.
- Mold in crawlspace ductwork during humid summers. Uninsulated metal ducts in a vented Knoxville crawlspace spend most of July and August below the dew point. That means condensation forms on the outside, and if the duct has even a small air leak, the inside is wet too. The result is microbial growth the homeowner cannot see and a musty smell that comes on with the AC. Cleaning addresses the visible growth; sealing and insulation are what prevent the next outbreak.
Pricing for HVAC Cleaning in Knoxville, TN
A full-system HVAC cleaning for a typical Knoxville home runs $425-$780. That includes the air handler, blower, evaporator coil, condenser, and the accessible supply and return plenums. Larger systems with two air handlers or zoned ductwork run higher, usually $700-$1,100. Heat exchanger cleaning on a gas furnace adds $120-$200. Duct board replacement or flex duct replacement, when the camera shows it is necessary, is quoted separately and in writing before any work begins. We never quote per vent. One flat price per system, delivered in writing, before the first panel comes off. That is Haven Standard Clause 1, and it has applied to every job since 2013. Call (806) 606-6902 for an exact price on your system.
We Also Serve Cities Near Knoxville
Beyond Knoxville proper, our crews cover Oak Ridge and the Anderson County corridor, Maryville and Alcoa to the south, Morristown to the northeast, and Lebanon to the west. Scheduling is centralized through our Memphis office, and the same written-price standard and documented photo record apply to every job in the service area. If you are within 45 minutes of Knoxville, we can usually schedule a visit that week.
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 - HVAC Cleaning in Knoxville
Because the mold keeps getting wet again. Knoxville’s humidity is driven by its valley position and the moisture that pours off the Great Smoky Mountains. When uninsulated ducts run through a vented crawlspace, the metal surface temperature drops below the dew point every summer night. That creates condensation, and condensation feeds mold. Cleaning removes the existing growth, but if the ducts are not insulated or the crawlspace is not sealed, the mold will return. During every HVAC cleaning visit, we document whether the ducts are insulated and whether the crawlspace is vented, and we quote the sealing or insulation work as a separate written line item. Call (806) 606-6902 and we’ll explain what your specific system needs.
You look for three things. Glass fiber particles showing up on the register grilles or on the floor under the registers. A musty, stale odor that gets stronger when the blower kicks on. And a pressure imbalance where some rooms never get enough airflow. All three are consistent with fiberglass duct board that has softened and crumbled from decades of Valley humidity. The only way to confirm it is with a camera inspection of the inside of the duct runs, which is included in our standard HVAC cleaning visit. We photograph the duct interior before touching anything, and those photos are yours to keep in the job record. If the board has failed, cleaning alone will not fix it. The runs need to be replaced or sealed, and we will put that in writing.
Yes, on two levels. First, cleaning the evaporator coil restores your system’s ability to remove moisture from indoor air, which is the primary way a properly working AC reduces indoor pollen counts. Second, a clean coil and a clean blower move more air across the filter, which means more pollen gets captured and less recirculates through the duct system. In Knoxville, where spring oak and mixed hardwood pollen lingers in the valley air for weeks, we recommend coil cleaning every two to three years and filter replacement every one to three months during peak pollen season. The coil cleaning removes the pollen paste that the filter missed, and the photo record shows you what was on the coil before and after.
Air duct cleaning addresses the distribution system: the supply runs, return runs, plenums, and registers. HVAC cleaning addresses the mechanical components themselves: the air handler, blower wheel, evaporator coil, condenser coil, and on gas systems, the heat exchanger. In Knoxville, the distinction matters because older homes with fiberglass duct board often need both. The duct work carries the debris, but the coil and blower are where that debris gets processed through heat and moisture. We offer both services, and the same documented photo record applies to each. Most Knoxville customers book them together, which is why the full-system price of $425-$780 covers the complete HVAC cleaning including coil, blower, condenser, and air handler. Call (806) 606-6902 and we’ll tell you exactly what your system needs based on age, fuel type, and duct material.
Yes. Gold Medallion homes from the TVA’s all-electric program use resistance heat strips inside the air handler as the primary or backup heat source. The strips are fragile, and they sit directly in the airstream. We remove the blower assembly, inspect the heat strip frame, and clean around it using negative-pressure HEPA extraction rather than pressure washing or chemical bath methods that could bend or corrode the elements. The photo record includes close-ups of the heat strips before and after, so you can see they were not damaged. Homes in Fountain City, Bearden, and Holston Hills with original Gold Medallion equipment are some of our most common jobs in Knoxville, and we have been documentably careful with them since our first year in business.
If your Knoxville HVAC system has not been cleaned in three years or more, or if you have never seen the inside of your air handler, call us at (806) 606-6902 for a free estimate. You will get a written price before any work starts, a documented photo record of every component we touch, and the 365-Day Done Right Promise in writing from Tomas Reyes and the CleanRun team.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, documenting every job in Knoxville with a written price and photo record since 2013.