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State research · updated July 2026

Replacement Windows in Tennessee

Current incentive status, energy-code requirements, and local market research for Tennessee homeowners replacing windows and doors.

Rebates & incentives

The federal window tax credit (25C) ended for projects placed in service after December 31, 2025. If your windows were installed in 2025, you can still claim it on your 2025 return — but for new projects there is no federal window credit. State and utility programs are now the main source of window incentives.

Tennessee's IRA Home Energy Rebates are administered by TDEC's Office of Energy Programs (the state energy office); the state's allocation was approved but the consumer-facing HOMES/HEAR programs had not launched as of mid-2026. Check TDEC for current status before promising rebates.

  • TVA EnergyRight Home Energy Rebates. TVA's valley-wide EnergyRight program offers residential rebates that explicitly include windows alongside insulation, air sealing, and HVAC; work must be done by a contractor in TVA's Quality Contractor Network, who submits the rebate for you. (TVA EnergyRight (energyright.com))
  • Local power company programs (NES, MLGW, EPB, and co-ops). TVA distributes EnergyRight through local power companies — Nashville Electric Service, Memphis Light Gas & Water, Chattanooga's EPB, Middle Tennessee Electric and others — so rebate availability and amounts vary by utility; confirm with your local power company. (NES, MLGW, EPB, MTE program pages)

Energy code

Tennessee's statewide residential energy code is still based on the 2009 IECC with state amendments, though some cities such as Nashville enforce newer editions — check local requirements for replacement window U-factors.

Local market research in Tennessee