# Exterior soft wash cost in Knoxville Exterior soft wash in Knoxville runs between $0.078 and $0.245 per square foot of exterior wall, most likely $0.147. These are the Tennessee rates. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 16, 2026. Method propdata-estimator-v6. ## Rates by service **Exterior soft wash rates in Knoxville, per square foot of exterior wall** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash (drone) | $0.078 | $0.147 | $0.245 | | Facade wash with mold or growth treatment | $0.118 | $0.216 | $0.372 | | Facade wash, conventional access | $0.147 | $0.265 | $0.441 | Grade C: modelled from the Texas calibration and scaled by the state factor of 0.98. [What the grades mean](https://skypsi.com/estimates/methodology/confidence-grades/). ## What moves the price - Moderate: adds 10% - High: adds 25% - Extreme or first clean: adds 40% - Minimum job value: $5,000 - Boom lift, up to 8 floors: $2,000 a week - Boom lift, 9 to 12 floors: $3,500 a week - Boom lift, 13 floors and up: $4,500 a week - Lift fuel: $75 a day - [Access and permit costs](https://skypsi.com/estimates/methodology/add-ons/) ## Buildings on file - Buildings on file: 40,574 (public building records, as of October 16, 2026) - With measured height: 30,247 (public building records, as of October 16, 2026) - Tallest: 328.1 feet (public building records, as of October 16, 2026) - Median estimate: $9,500 (most likely, per building, SkyPSI estimator, as of October 16, 2026) ## Building types - [Office](https://skypsi.com/estimates/exterior-soft-wash/tn/knoxville/office/) - [Retail](https://skypsi.com/estimates/exterior-soft-wash/tn/knoxville/retail/) - [Industrial](https://skypsi.com/estimates/exterior-soft-wash/tn/knoxville/industrial/) ## Tallest buildings on file - [1928 Alcoa Highway, Knoxville](https://skypsi.com/property/tn/knoxville/spsfjmqcqk8bkjm-1928-alcoa-highway-knoxville/): 192.9 feet, 14 stories - [1705 Saint Mary Street, Knoxville](https://skypsi.com/property/tn/knoxville/sp3y9rcvb1d234y-1705-saint-mary-street-knoxville/): 190.2 feet, 14 stories - [1300 Phillip Fulmer Way, Knoxville](https://skypsi.com/property/tn/knoxville/sp0b5cq4me7fd6q-1300-phillip-fulmer-way-knoxville/): 189.8 feet, 14 stories - [1265 Edgemoor Road, Clinton](https://skypsi.com/property/tn/knoxville/spq9vdjnwccctet-1265-edgemoor-road-clinton/): 187.9 feet, 15 stories - [500 Clinch Avenue, Knoxville](https://skypsi.com/property/tn/knoxville/sp6f6vyt1we3pzv-500-clinch-avenue-knoxville/): 177.3 feet, 17 stories - [520 West Summit Hill Drive, Knoxville](https://skypsi.com/property/tn/knoxville/spv31nvkb6rs8p3-520-west-summit-hill-drive-knoxville/): 163 feet, 13 stories - [1500 Phillip Fulmer Way, Knoxville](https://skypsi.com/property/tn/knoxville/sp7grrm9gvqgqbk-1500-phillip-fulmer-way-knoxville/): 145.5 feet, 8 stories - [400 Centrifuge Way, Oak Ridge](https://skypsi.com/property/tn/knoxville/spajyxmxfyty26c-400-centrifuge-way-oak-ridge/): 143.3 feet, 7 stories - [500 State Street, Knoxville](https://skypsi.com/property/tn/knoxville/spmh4hydqsfnygr-500-state-street-knoxville/): 140.1 feet, 7 stories - [531 Henley Street, Knoxville](https://skypsi.com/property/tn/knoxville/spcr5yj5s71q5xr-531-henley-street-knoxville/): 139.6 feet, 11 stories - [501 East Hill Avenue, Knoxville](https://skypsi.com/property/tn/knoxville/spx2hvq6w68pewm-501-east-hill-avenue-knoxville/): 136.1 feet, 13 stories - [265 Brookview Centre Way, Knoxville](https://skypsi.com/property/tn/knoxville/sp0z18s09ynx1be-265-brookview-centre-way-knoxville/): 127.3 feet, 10 stories ## Methods - [Drone](https://skypsi.com/estimates/exterior-soft-wash/drone/tn/knoxville/): buildings from 45 feet to 250 feet tall - [Boom lift](https://skypsi.com/estimates/exterior-soft-wash/lift/tn/knoxville/): any height - [Rope access](https://skypsi.com/estimates/exterior-soft-wash/rope-bmu/tn/knoxville/): work above what a pole reaches ## Questions ### What does mold or algae treatment add by drone? A drone facade wash with mold or growth treatment runs between $0.118 and $0.372 per square foot of exterior wall, most likely $0.216. ### When does a boom lift or rope access fit better than a drone? Conventional access suits buildings under 45 feet, which sit below the drone range. A conventional facade wash runs between $0.147 and $0.441 per square foot of exterior wall, most likely $0.265. ### What changes the price of exterior soft wash in Knoxville? Difficulty adds 10% for moderate access or soiling, 25% for high, and 40% for an extreme building or a first clean. ### What does a boom lift add? A boom lift for a building up to 8 floors adds $2,000 a week. ### Is there a minimum job value? The minimum job value is $5,000. A smaller job is raised to it once, on the proposal. ### Which rates does Knoxville use? Knoxville uses the Tennessee rates. ## About these estimates SkyPSI sets the exterior cleaning estimate for commercial buildings. Exterior soft wash is a service. Drone, boom lift and rope access are methods. ## Related - [Exterior soft wash in Tennessee](https://skypsi.com/estimates/exterior-soft-wash/tn/) - [Window cleaning in Knoxville](https://skypsi.com/estimates/window-cleaning/tn/knoxville/) - [How a SkyEstimate is built](https://skypsi.com/estimates/methodology/how-a-skyestimate-is-built/) - [Rates for every service](https://skypsi.com/estimates/methodology/per-square-foot-bands/) - [Regional price factors](https://skypsi.com/estimates/methodology/regional-price-factors/) [Request a Quote](https://skypsi.com/request-a-quote) --- Sources: USA Structures, Overture Maps building footprints, SkyPSI estimator, USGS 3D Elevation Program. Building footprints: USA Structures, FEMA Response Geospatial Office, Oak Ridge National Laboratory and U.S. Geological Survey (CC BY 4.0). https://disasters.geoplatform.gov/USA_Structures/ Building footprints from Overture Maps Foundation, including OpenStreetMap contributors, Microsoft, Esri Community Maps contributors and USGS, under the Open Database License (ODbL). https://opendatacommons.org/licenses/odbl/1-0/ Building heights from the U.S. Geological Survey 3D Elevation Program (public domain). https://www.usgs.gov/3d-elevation-program Page: https://skypsi.com/estimates/exterior-soft-wash/tn/knoxville/ JSON: https://skypsi.com/estimates/exterior-soft-wash/tn/knoxville.json Content license: https://skypsi.com/content-license.txt