Tennessee HVAC Help
Aerial view of a square outdoor air conditioning condenser unit on a concrete pad beside a house wall with a sliding glass door.

AC Installation in Sevierville, TN

A new air conditioner in Sevierville will run from June through September every year. Tell us about the house, and a licensed contractor who covers Sevier County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of a gray residential air conditioning condenser unit mounted on a concrete pad beside a house with asphalt shingle roofing.

Four months of real heat in Sevier County

Summer afternoons here average 84°F, and homes need cooling from June through September. That is four months a year the system has to work, not year round, but enough that it needs to hold up under steady demand each afternoon.

Sevier County also sees its share of hail and wind, with 157 damaging wind events recorded over the past ten years. An outdoor unit sits exposed to that. Any new central air conditioner installed today also has to meet the federal efficiency minimum of 14.3 SEER2, so the baseline for a new system is already higher than what older units were built to.

4 months
June through September, your air conditioner is on duty
84°F
the average summer afternoon it cools against
13 hail events
in ten years, and hail bends the fins on outdoor coils
13.4 SEER2
the federal minimum any new unit must meet
Isometric line illustration of a cutaway single-story building showing interior rooms, ceiling ductwork, an indoor air handler, and an outdoor condenser unit connected by a line set.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Overhead view of an outdoor AC condenser unit on a concrete pad next to a house with a dark shingle roof.

Going above the federal minimum saves little here, about $10 a year.

  • A higher-efficiency unit$180 a year
  • A new unit at the federal minimum, 14.3 SEER2$190 a year

Estimates for a typical Sevier County home, from EIA household energy data, Tennessee fuel prices and NOAA climate normals. Your home will differ.

What size air conditioner does my house need?
It depends on your home's square footage, insulation, window placement, and layout, not on what size your old unit was. An oversized unit cools the air fast but shuts off before it pulls the moisture out, so rooms end up cold and damp at the same time. An undersized one runs constantly through the summer and still falls behind on the hottest afternoons. A contractor works this out with a load calculation on your actual house, not a guess based on square footage alone.
Should I replace the whole system or just the outdoor unit?
If the indoor and outdoor units are close in age, replacing both together usually makes more sense than replacing just one. The outdoor unit and the indoor coil are matched to work at a specific efficiency and capacity. Put a new outdoor unit on an old indoor coil and the system often can't reach the rating either part was built for, so you lose efficiency and may shorten the life of the new equipment. A contractor can check whether your existing coil and ductwork will actually work with a new outdoor unit before you decide.
Do HVAC contractors in Sevierville need a state license to work on my home?
Ask to see a contractor's license before work starts. It should be tied to the person or company doing the job, not just the name on the truck. A licensed contractor also carries insurance that protects you if something goes wrong during the installation.
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