Air 911Heating and Cooling
HVAC contractor in Chattanooga, TN 37421
About this company
Air 911Heating and Cooling is listed as an HVAC contractor at 4295 Cromwell Rd in Chattanooga, Tennessee, in Hamilton County. It is one of 16 HVAC companies in ZIP 37421.
Other HVAC companies nearby
Johnson Controls6125 Heritage Park Dr Ste B, Chattanooga
0.8 mi(423) 648-9819
Trane - Heating & Cooling Services6138 Preservation Drive, Suite 500, Chattanooga
1.0 mi(844) 800-5548
Commercial Air Solutions1701 Chickamauga Loop, Chattanooga
2.0 mi(423) 643-2665
Conditionaire Company2836 Hickory Valley Rd, Chattanooga
2.2 mi(423) 805-1025
Patriot Services6135 Airways Blvd, Chattanooga
2.2 mi(423) 528-6068
Housing market around ZIP 37421
Figures describe the local area, not this company.
Typical home value$357,000−1.2% past year · +82% in 10 years
Typical rent$1,514+1.8% past year
12-month value outlook+1.1%
New homes permitted, 20251,887Hamilton County
Days to sale agreement36Chattanooga metro · 27 a year ago
Listings with a price cut33.9%Chattanooga metro
Sale price vs list97.6%Chattanooga metro
New construction sales146Chattanooga metro, Aug · +3% 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: Hamilton County permitted 1,887 new homes in 2025, including 24 apartment units. 32% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.