Dryer vent cleaning in Knoxville, TN
Dryer vent cleaning in Knoxville costs about $80 to $185 for a standard vent and $150 to $250 for a roof vent, going by HomeGuide's national price survey; no survey publishes Knoxville-only prices, so compare two written quotes against those ranges. Dryer vent rules in Knoxville come from the 2024 International Residential Code. Use the form below and we send your request to a dryer vent company that serves your Knoxville ZIP code.
Dryer vent cleaning in Knoxville: the local facts
| Knoxville, TN | |
|---|---|
| Population | 195,185 |
| Households that rent | 53.4% |
| Homes in buildings with 5 or more units | 33.8% |
| Median year homes were built | 1974 |
| Homes built in 2010 or later | 10.9% |
| Dryer share of residential fires, Tennessee (2020 to 2024) | 4.7% |
| Dryer vent rules | 2024 International Residential Code |
Half of Knoxville's homes were built in 1974 or earlier, and 10.9% were built in 2010 or later. With only 10.9% of homes built since 2010, many Knoxville homes are older; the USFA recommends replacing coiled-wire foil or plastic venting with rigid, non-ribbed metal duct.
In Tennessee, clothes dryers were the equipment involved in 4.7% of residential structure fires where the equipment was identified, in fire department records for 2020 to 2024, about the same as the national 4.6%. Failure to clean is the leading factor nationally, in 31.2% of dryer fires with a known cause. Details and state-by-state figures: dryer fire statistics.
Knoxville dryer vent code rules
Section 6-41 of Knoxville's Code of Ordinances adopts the 2024 edition of the International Residential Code, as amended by the city, as the Residential Building Code of the City of Knoxville, and the city's Construction Codes page lists the 2024 International Residential Code.
Knoxville's amendments to that code (Section 6-42) include administration and permits, the climate design table, a smoke alarm exception for existing areas and energy code items; none mention dryers or change the dryer exhaust section (M1502).
Under the 2024 International Residential Code, a dryer exhaust duct can run at most 35 feet, minus an allowance for each elbow (M1502.4.6.1), or the length the dryer maker's installation instructions allow (M1502.4.6.2); the hose behind the dryer must be one listed piece of 8 feet or less (M1502.4.3); and the duct must end outside with a backdraft damper and no screen (M1502.3), and domestic booster fans are not allowed (M1502.4.5). Check a run with the dryer vent length calculator.
Permits for dryer vent work in Knoxville
Knoxville Plans Review and Inspections (865-215-2999) issues a Residential Mechanical permit for HVAC equipment, ductwork, and gas piping to heating and cooling systems. The city's one change to the residential code's section on work exempt from permit (R105.2) says that for the listed items, building permits are not required while zoning approval is required.
Local resources in Knoxville
The Knoxville Fire Department's Smoke Alarm Program provides smoke alarms and replacement batteries free of charge to residents of single-family dwellings who cannot afford to purchase them or are unable to do the work safely. Each engine company installs the alarms and batteries in residences within its primary response territory. Residents of rental properties or condominiums are asked to contact their landlord or property owner's association instead. To request alarms or batteries, call 311 or 865-215-4311, Monday through Friday from 8 am to 4:30 pm.
To report a possible fire hazard, call the department's Fire Prevention Bureau at 865-633-0400; the bureau says all complaints are investigated by a fire inspector.
A City of Knoxville Plans Review and Inspections presentation on significant 2018 to 2024 mechanical, electrical and plumbing code updates lists dryer items, including that domestic booster fans are prohibited and that a closet designed for a clothes dryer needs a makeup air opening of at least 100 square inches or makeup air by other approved means.
Renting or in a condo in Knoxville
More Knoxville households rent than own: 53.4% rent, and 33.8% of homes are in buildings with five or more units. Before booking, check your lease or association documents for who handles the vent; see apartment, condo and commercial dryer vent cleaning.
Cost and timing
HomeGuide's ranges at the top of this page are national; the cost guide breaks them down by floor, problem and company. Book before winter: the NFPA baseline is a cleaning once a year, and in US fire department records for 2020 to 2024, dryer fires nationally were most common in January (9.8%), February (9.3%) and March (10.1%). Warning signs are in signs of a clogged dryer vent.
Other cities we cover
- Dryer vent cleaning in Alpharetta, GA
- Dryer vent cleaning in Marietta, GA
- Dryer vent cleaning in Franklin, TN
- Dryer vent cleaning in Charlotte, NC
Sources
- U.S. Census Bureau, American Community Survey 2024 5-year estimates, tables B01003, B25003, B25024, B25035: data.census.gov
- HomeGuide, "How much does dryer vent cleaning cost?", page dated April 29, 2024: homeguide.com
- NFPA, "Clothes dryer safety" tip sheet: www.nfpa.org
- U.S. Fire Administration, "Clothes Dryer Fires in Residential Buildings (2008 to 2010)", August 2012: www.usfa.fema.gov
- City of Knoxville, Code of Ordinances, Chapter 6, Article IIA, Residential Building Code: api.municode.com
- City of Knoxville, Construction Codes: www.knoxvilletn.gov
- City of Knoxville, Plans Review and Permits: www.knoxvilletn.gov
- Knoxville Fire Department, Fire Marshal's Office: www.knoxvilletn.gov
- Knoxville Fire Department, Smoke Alarm Program: www.knoxvilletn.gov
- City of Knoxville Plans Review and Inspections, 2018 to 2024 Significant MEP Updates: www.knoxvilletn.gov
- FEMA, OpenFEMA, NFIRS Annual Data, fire files 2020 to 2024, downloaded September 25, 2026: www.fema.gov
- Vent & Flue analysis, dryer fires by month (CSV): dryer-fires-by-month.csv
- Vent & Flue analysis, dryer fires by state (CSV): dryer-fires-by-state.csv
- 2024 International Residential Code, section M1502: codes.iccsafe.org