HVAC companies in Knoxville, TN 37921
14 HVAC companies, with local market data for this ZIP.
General contractors 38HVAC 14Roofing and exteriors 7Carpentry, drywall and windows 6Other construction trades 6Painting 4Electricians 3Remodeling 2Concrete and masonry 2Fences and decks 1Garage doors 1Flooring and tile 1
Area profitability, HVAC46 / 100Moderate market, crowded field
Typical home value$288,000+0.8% in the past year
New homes permitted, 20255,013Knox County
Homeowners59.8%11,518 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
1st Choice Heating & AirHVAC contractor · 6939 Clinton Highway, Knoxville(865) 346-4780 · 1stchoicehvacknox.com
A1 Air ConditioningHVAC contractor · 3722 Meredith Rd, Knoxville(865) 740-4313 · hvacknox.com
AA-Air CompanyHVAC contractor · 1001 Katherine Ave, Knoxville(865) 213-1354 · yourcomfortablezone.com
Carrier EnterpriseHVAC contractor · 1601 Third Creek Rd, Knoxville(865) 558-6336 · se.carrierenterprise.com
Chaffee Climate ControlHVAC contractor · 5725 Ball Camp Pike, Knoxville(865) 602-3552 · coolingheatingplumbing.com
Chancey & Reynolds, Inc.HVAC contractor · 614 Van St, Knoxville(865) 525-5076 · chanceyreynolds.com
City Heating & AirHVAC contractor · 3111 NW Park Dr, Knoxville(865) 938-1005 · cityheatandair.net
HCS Mechanical ContractorsHVAC contractor · 1201 Hilton Rd, Knoxville(865) 777-0555 · hcsmechanicalcontractors.com
Interstate Mechanical ServiceHVAC contractor · 3200 Henson Rd, Knoxville(865) 602-4128 · imsknox.com
JCs Heating and Air.HVAC contractor · 3110 Henson Rd Ste 7, Knoxville(865) 388-1712 · jcsheatingandair.com
Knox Filters IncHVAC contractor · 941 Elm St, Knoxville(865) 522-6301 · catalog.camfil.us
Northgate PartsHVAC contractor · 6807 Pleasant Ridge Rd, Knoxville(865) 938-0670 · northgateparts.com
RoomOne SolutionsHVAC contractor · 1100 Marion St, Knoxville(888) 458-7822 · roomonesolutions.com
Trane Commercial Sales OfficeHVAC contractor · 5220 Middlebrook Pike S., Knoxville(865) 588-0607 · trane.com
HVAC in ZIP 37921 at a glance
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.