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Furnace and Heating Repair in Nashville
Heating diagnosis and repair for Nashville homes, including safety inspection.
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Before you call anyone
Middle Tennessee winters are mild enough that furnaces here accumulate fewer run hours than in colder states, which means they often last longer — and also that problems go unnoticed for months. One category of furnace failure is a genuine safety emergency rather than a comfort problem, so it is worth knowing the difference before you call anyone.
What this looks like in Nashville
Older East Nashville and Inglewood homes were frequently retrofitted with undersized systems squeezed into tight crawlspaces and attic knee walls, so a unit that 'runs constantly but never cools' is often a sizing and duct problem, not a failed compressor.
- Housing stock
- Wildly mixed — 1900–1940 bungalows in East Nashville, Germantown and 12South; 1950s–60s brick ranches through Donelson, Madison and Inglewood; and dense new construction in The Nations and Wedgewood-Houston.
- Local conditions
- The March 2020 tornado that crossed East Nashville and Donelson, the May 2020 derecho, and the 2010 flood are all still visible in local roof and system ages.
- Permits issued by
- Metro Nashville Department of Codes and Building Safety
- Areas we cover
- East Nashville, Green Hills, Donelson, Madison, Bellevue, Antioch, Hermitage, The Nations, Sylvan Park, Inglewood and the rest of Davidson County.
On the ground in Nashville
Furnace calls in Nashville split pretty evenly along house age. In the 1900s–1940s bungalows around East Nashville, Germantown and 12South, the furnace is usually shoehorned into a crawlspace or a tight attic knee wall from a retrofit decades ago, and that cramped installation is often the real problem — not just the parts inside the unit. In the brick ranches of Donelson, Madison and Inglewood, systems are older on average and starting to show it: cracked heat exchangers, pilot and igniter trouble, and ductwork that was sized for a smaller house before additions went on.
Storm history matters too. Roof and attic work after the March 2020 tornado track through East Nashville and Donelson, and repairs following the 2010 flood, mean a lot of venting and ductwork has been touched by someone other than the original installer. If your furnace is short-cycling or you're smelling something acrid after the first cold snap, don't assume the worst — check whether anything near the flue or intake got disturbed during roof or attic repairs first.
One thing worth knowing before you call: a yellow flame or soot around the cabinet in an older Inglewood or East Nashville home is often a combustion-air problem from a sealed-up crawlspace, not a dying furnace. That's a five-minute fix compared to a heat exchanger replacement, so get it looked at before assuming you need a new unit.
Signs you are looking at this problem
- The blower runs but the air is not warm
- The system ignites, runs briefly, then shuts down and retries
- A yellow rather than blue burner flame
- A persistent burning or acrid smell after the first cold snap
- Soot or scorch marks around the furnace cabinet
- A carbon monoxide detector alarming, or unexplained headaches and nausea indoors
How urgent is it?
You see soot, scorching, or a yellow burner flame.
No heat with outdoor temperatures below freezing.
Heat is working but weak, or one room lags behind the rest.
What it typically costs in Nashville
| Job | Typical range | What you should know |
|---|---|---|
| Failed igniter | $175–$450 | The routine winter failure. The system tries to start and gives up. |
| Dirty flame sensor | $125–$275 | Causes the classic light-then-quit cycle. Cleaning, not replacement, is usually all that is required. |
| Limit switch or control board | $300–$750 | — |
| Inducer or blower motor | $450–$1,200 | — |
| Cracked heat exchanger | $1,500–$3,500 | This is the safety one. A cracked exchanger can put carbon monoxide into your living space. On most furnaces this repair costs enough that replacement is the better decision — but do not keep running the system while you decide. |
Middle Tennessee working ranges for planning, updated 2026. Not a quote — the contractor who does the work sets the price, and should confirm it before starting.
Facts that change the math
Tennessee requires a state contractor's license for projects of $25,000 or more, and a Home Improvement license for smaller residential jobs in certain counties — Davidson, Rutherford, Robertson, Knox, Shelby, Hamilton, Marion and Haywood among them. You can verify any contractor's license yourself at verify.tn.gov before you sign anything or hand over a deposit.
Questions worth asking
Ask these and you will very quickly learn whether the person in your driveway is diagnosing or selling.
- Did you inspect the heat exchanger, and how?
- Is my carbon monoxide detector functioning and correctly placed?
- Is this failure related to anything that will fail next?
Request a callback
Faster by phone, especially after hours — but if you would rather not call, give us the essentials and a local contractor will reach out.
Common questions
How much does furnace repair cost in Nashville?
Most Nashville furnace repairs run $150 to $600. Igniter and flame sensor work sits at the low end. A cracked heat exchanger is the exception — it is both the most expensive repair and a safety issue, and it usually points toward replacement.
Does a furnace repair in Davidson County require a Metro permit?
Straight repairs — igniters, flame sensors, control boards, blower motors — generally don't require a permit. Full furnace replacement or any work that changes gas lines or venting does, and that permit goes through Metro Nashville Department of Codes and Building Safety. If a contractor tells you your 'repair' is really a swap-out, ask whether it's being pulled with a permit.
What are the signs of carbon monoxide from a furnace?
A yellow rather than blue flame, soot around the cabinet, excessive condensation on windows, and — most importantly — headaches, dizziness or nausea that improve when you leave the house. If you suspect carbon monoxide, leave first and call from outside. This is not a wait-and-see situation.
Why does my furnace start then shut off?
Classic short-cycling, and the usual cause is a dirty flame sensor: the furnace ignites, fails to confirm flame, and shuts down for safety. It is typically an inexpensive cleaning.