Furnace Repair Nashville: $125 to $1,250 + Permits (2026)

Nashville rows are local figures; national rows are labeled.

Do this now: no heat in Nashville

1. Gas smell or a CO alarm: get everyone out, then call 911 or Piedmont Natural Gas from outside. CPSC says not to look for the source.
2. Thermostat on heat and above room temperature, fan on AUTO (Carrier); furnace switch on; breaker set. Do not keep resetting a breaker that trips (Bryant).
3. Change a dirty filter; Bryant says it can trip the high-limit switch and shut the burners off.
4. Protect pipes on outside walls and in crawl spaces: open sink cabinets and drip cold water (Red Cross). See frozen pipes.
5. Do not heat with the oven, and keep space heaters 3 feet from anything that burns (CDC).

Is it an emergency? Nashville's 66.3 freezing nights

Nashville gets real winter cold: Nashville International averages 66.3 nights a year with a low at or below 32 F, NOAA's 1991 to 2020 normals show, and the National Weather Service lists an all-time record low of -17 F, set in 1985. No heat on those nights is an emergency, as is a gas smell, a CO alarm or a furnace that keeps shutting down. If an alarm is going off, follow carbon monoxide alarm going off; for cool air at the vents, see furnace blowing cold air.

Newer houses, newer furnaces

Nashville's housing is newer than the national median. The Census Bureau's 2020 to 2024 survey puts the median year built at 1987, against 1980 nationally, and 120,047 of Nashville's 344,794 housing units were built in 2000 or later. HomeAdvisor puts furnace life at 15 to 30 years and suggests replacing when a repair costs more than half the price of a new one, so check the furnace's own age before deciding. See how long a furnace lasts and furnace replacement cost.

Metro Nashville permits and HVAC certificates

Metro Nashville's Mechanical, Plumbing and Electrical Examiners and Appeals Board examines for the local trade certificates, including master mechanical, HVAC&R, and gas and appliance. Only licensed contractors with a Metro e-permit account can apply for trade permits online, and gas and mechanical permits are separate from plumbing and electrical. There is no public lookup on the board's page, so call Metro Codes at 615-862-6500 to confirm a certificate. Gas and mechanical inspections: 615-862-6570.

For larger jobs, the Tennessee Board for Licensing Contractors licenses general contractors, home improvement contractors and limited licensed plumbers and electricians, with an online search.

Help paying for heating repairs in Nashville

• THDA Emergency Repair Program: grants for homeowners 60 or older or with a disability who have lived in the home 3 or more years, covering heating and air conditioning, roofs, electrical and plumbing. Lifetime maximum $24,999, no repayment and no lien. THDA: 800-228-THDA.
• Metro Action Commission: LIHEAP help with electric and gas bills, 615-862-8860. Its page says LIHEAP assistance is temporarily delayed and applications are waitlisted; call United Way at 2-1-1 meanwhile.
• NES and TVA Home Uplift: eligible homeowners receive an average of $10,000 in energy upgrades such as insulation and duct sealing.

Rebates: TVA EnergyRight, not the gas company

Piedmont Natural Gas says its appliance rebates are only for North Carolina customers, so Nashville gas furnaces get none. TVA EnergyRight, through your local power company, pays $800 for a 17+ SEER2 heat pump or $500 for 15 to 16.99 SEER2, and $50 for an HVAC tune-up; the work must be done by a Quality Contractor Network member. Compare heat pump installation cost if you are weighing a switch.

Local heating rules, programs and climate for Nashville, from official city, county, state, utility, Census and NOAA pages.

Questions to ask a Nashville furnace company

1. Which Metro Nashville certificate do you hold, and what is the number?
2. Will you pull the gas and mechanical permit if one is needed?
3. What is the diagnostic fee? ConsumerAffairs lists $65 to $125 in Nashville.
4. Is the ignitor or flame sensor price ($85 to $250 locally) parts and labor?
5. Can I see proof of insurance and a written price before work starts?

More Nashville heating guides

All heating and cooling: HVAC repair in Nashville. Frozen pipes and leaks: plumber in Nashville. Compare furnace repair in St. Louis and furnace repair in Columbus. National prices: furnace repair. Calls go to an independent company that serves your area and takes this kind of job (how calls work).