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AC Repair in Hendersonville
Air conditioning diagnosis and repair for Hendersonville homes — same-day and after-hours.
Answered live, any hour · Licensed Tennessee contractors · No obligation · We never sell your number to five companies at once
Before you call anyone
An air conditioner that stops cooling in a Middle Tennessee July is not a maintenance issue, it is a habitability issue. Most failures, though, are one of about six things — and several of them are cheap. Knowing which one you are looking at before a technician arrives is the difference between a $280 repair and an $8,000 replacement you did not need.
What this looks like in Hendersonville
Homes near Old Hickory Lake fight humidity as much as heat. An air conditioner that cools to setpoint but leaves the house feeling clammy is usually short-cycling — oversized for the load — and the fix is rarely a new unit.
- Housing stock
- 1970s–80s lakeside construction along Old Hickory Lake alongside newer subdivisions inland, with a meaningful share of homes on original ductwork.
- Local conditions
- The December 2023 tornado outbreak caused significant damage in Sumner County, and lakeside humidity accelerates everything moisture touches.
- Permits issued by
- City of Hendersonville Codes Department
- Areas we cover
- Indian Lake, Sanders Ferry, Walton Ferry, Station Camp, Old Hickory Lake and the rest of Sumner County.
On the ground in Hendersonville
If you're in Indian Lake, Sanders Ferry, or anywhere along Walton Ferry Road, there's a good chance your ductwork and your AC unit are not the same age. A lot of the lakeside homes here were built in the 70s and 80s with original duct runs, then had a replacement condenser bolted on at some point without anyone rechecking the sizing. That mismatch is why so many calls we get aren't about a broken system at all — they're about a system that cools to setpoint but the house still feels damp and sticky. Near Old Hickory Lake that's almost always short-cycling: the unit is oversized for the space, it satisfies the thermostat before it's run long enough to actually pull moisture out of the air, then shuts off and starts again. The fix is usually a runtime or airflow adjustment, not a new unit — and anyone who tells you to replace the whole system before checking that is skipping a step.
Storm damage is the other local wrinkle. After the December 2023 tornado outbreak tore through Sumner County, a fair number of Station Camp and Old Hickory Lake area homes ended up with disturbed line sets, dented condensers, or units that got restarted after sitting exposed to weather they weren't built for — and some of those problems didn't show up until the next hot stretch.
Signs you are looking at this problem
- The unit runs constantly but the house never reaches setpoint
- Air from the vents is moving but is not cold
- The outdoor unit hums but the fan does not spin
- Ice visible on the refrigerant line or the indoor coil
- The system trips the breaker, or shuts off after a few minutes and restarts
- Water pooling around the indoor air handler or a ceiling stain beneath it
How urgent is it?
Anyone in the home is elderly, an infant, or medically vulnerable and the indoor temperature is climbing past the mid-80s.
You smell burning, see scorching at the disconnect, or the breaker trips again immediately after being reset.
The system is running but not cooling and outdoor temperatures are above 85.
Cooling is weak but functional, or the problem is one warm room.
What it typically costs in Hendersonville
| Job | Typical range | What you should know |
|---|---|---|
| Failed run capacitor | $150–$400 | By far the most common summer failure. The outdoor fan will not start, or starts only if you nudge it. A capacitor is a $30 part; you are paying for the trip and the diagnosis. If a technician tells you a capacitor failure means you need a new system, get a second opinion. |
| Clogged condensate drain | $125–$300 | Endemic in humid Tennessee summers. The safety float switch senses standing water and shuts the system down on purpose. It looks like a dead system and is usually a 20-minute fix. |
| Dirty or blocked evaporator coil | $200–$600 | Causes the freeze-up people mistake for a refrigerant problem. If your line is iced, turn the system to fan-only and let it thaw before anyone diagnoses it — nobody can read pressures on a frozen system. |
| Contactor or relay failure | $175–$425 | — |
| Blower motor failure | $450–$1,200 | — |
| Refrigerant leak, located and repaired | $550–$1,800 | A recharge without finding the leak is a temporary fix being sold as a permanent one. Refrigerant does not get consumed; if it is low, it left. |
| Compressor replacement | $1,500–$2,800 | This is the decision point. On a system past roughly twelve years, a compressor replacement is usually money spent on a machine that will need replacing anyway. |
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
Since January 1, 2023, split-system air conditioners under 45,000 BTU installed in the Southeast region — which includes Tennessee — must meet a minimum of 14.3 SEER2. A contractor quoting you a lower-efficiency unit is quoting equipment that cannot legally be installed here.
R-22 refrigerant has not been produced or imported in the United States since January 1, 2020. Only reclaimed supply remains, and it is expensive. If your system is pre-2010 and uses R-22, a significant leak usually pushes the economics toward replacement — not because a technician is upselling you, but because the refrigerant itself now costs more than the repair.
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.
- What exactly did you measure, and can you show me the reading?
- Is this repair covered under any remaining manufacturer parts warranty?
- If this part fails, what is the next most likely failure on a system this age?
- What is the total installed cost of replacement, so I can compare it against this repair?
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 AC repair cost in Hendersonville?
Most Hendersonville repairs land between $150 and $600. Capacitor and contactor failures — the most common summer calls — are at the low end. Compressor and coil work runs into four figures, which is where the repair-versus-replace conversation starts.
Do I need a permit from the City of Hendersonville to replace an AC condenser damaged in the tornado?
If the outdoor unit is being replaced or the electrical disconnect is being redone, the City of Hendersonville Codes Department generally requires a mechanical permit, even for storm-related replacements. Straight repairs to an existing unit — a new capacitor, contactor, or coil — usually don't. Check with Codes before work starts, especially if insurance is involved, since permit records often matter for the claim.
Should I repair or replace my air conditioner?
The working rule is age times repair cost. If the system is over twelve years old and the repair exceeds roughly $1,500, replacement usually wins on total cost of ownership. If it uses R-22, that threshold drops sharply, because the refrigerant alone can cost more than the labor.
Why is my AC frozen in the middle of summer?
Almost always restricted airflow — a clogged filter, a dirty evaporator coil, or a closed-off return — or genuinely low refrigerant. Switch the system to fan-only to thaw it before a technician arrives, because pressures cannot be read on a frozen coil.
Can you come out after hours in Hendersonville?
Yes. Calls are answered 24 hours a day, including weekends and holidays, and after-hours work is dispatched to whichever vetted Hendersonville contractor is actually available rather than to a voicemail box.