Knox Filters Inc
HVAC contractor in Knoxville, TN 37921
About this company
Knox Filters Inc is listed as an HVAC contractor at 941 Elm St in Knoxville, Tennessee, in Knox County. It is one of 14 HVAC companies in ZIP 37921.
Other HVAC companies nearby
Fenco Supply916 Lee St, Knoxville
0.3 mi(865) 350-5121
Chancey & Reynolds, Inc.614 Van St, Knoxville
0.5 mi(865) 525-5076
All-Star Heating and Air Conditioning Formerly Dean's PHC2710 Bond St, Knoxville
1.2 mi(865) 333-7827
AA-Air Company1001 Katherine Ave, Knoxville
1.4 mi(865) 213-1354
Henshaw's Heating & Air Conditioning1512 Wright St, Knoxville
1.5 mi(865) 525-8389
Housing market around ZIP 37921
Figures describe the local area, not this company.
Typical home value$288,000+0.8% past year · +164% in 10 years
Typical rent$1,688+3.6% past year
12-month value outlook+2.0%
New homes permitted, 20255,013Knox County
Days to sale agreement25Knoxville metro · 24 a year ago
Listings with a price cut31.9%Knoxville metro
Sale price vs list97.8%Knoxville metro
New construction sales212Knoxville metro, Aug · −21% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Knox County permitted 5,013 new homes in 2025, including 2,437 apartment units. 21% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.