South Carolina HVAC Match
Overhead view of a gray residential air conditioning condenser unit mounted on a concrete pad beside a house with asphalt shingle roofing.

AC Installation in Gaffney, SC

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

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor air conditioning condenser unit on a concrete pad next to the gray vinyl siding of a residential home.

Five months of cooling, and what the sky does to it

Gaffney needs cooling from May through September, five months of the year, with summer afternoons averaging 88°F. A new air conditioner here is working through most of the warm season, not just a stretch of hot weeks.

The outdoor condenser sits outside through whatever the weather brings. Over the past ten years, the area has recorded 18 hail events and 49 damaging wind events. Any new central air conditioner installed today also has to meet the federal minimum of 14.3 SEER2.

5 months
May through September, your air conditioner is on duty
88°F
the average summer afternoon it cools against
18 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 house showing interior rooms, attic ductwork and an air handler, connected by a line to an outdoor condenser unit on a pad.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

Going above the federal minimum saves little here, about $20 a year.

  • A higher-efficiency unit$290 a year
  • A new unit at the federal minimum, 14.3 SEER2$310 a year

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

What size air conditioner does my house need?
There's no single number that fits every home. It depends on your square footage, ceiling height, how much shade the house gets, and how well it's insulated. A contractor will measure your house and run a load calculation to find the right size. Bigger isn't safer here either. An oversized unit cools the air fast and shuts off before it pulls the humidity out of the room, so the house feels damp even when the thermostat reads right. With five months of cooling season here and summer afternoons averaging 88°F, getting that number right matters.
Should I replace the whole system or just the outdoor unit?
In most cases you want to replace the outdoor unit and the indoor coil together. They're matched to work at a specific efficiency and capacity, and pairing a new outdoor unit with an old indoor coil usually means losing the efficiency gains you're paying for, sometimes voiding the manufacturer warranty too. If your indoor coil is young and in good shape, a contractor can check whether it's compatible with the new outdoor unit before you decide. Any new system installed now has to meet the federal minimum of 14.3 SEER2, so that's the baseline either way.
Do HVAC contractors in Gaffney need a state license to work on my home?
Ask to see a contractor's license number before any work starts. A licensed contractor will give you that number without hesitation, and you can look it up with the state licensing board to confirm it's current and in good standing.
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