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 Greenwood, SC

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

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An overhead view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

What summers in Greenwood ask of a new AC

Greenwood needs cooling five months a year, May through September, with summer afternoons averaging 90°F. A new system spends most of that stretch running long and steady rather than cycling on and off, so it needs to be sized right for your house from the start.

Any central air conditioner installed new has to meet the federal minimum of 14.3 SEER2. The county has also seen hail up to 1.75 inches and dozens of damaging wind events over the past ten years, so the outdoor unit's location and how it's mounted are worth getting right.

5 months
May through September, your air conditioner is on duty
90°F
the average summer afternoon it cools against
8 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 cutaway illustration of a single-story house showing interior rooms with furniture, overhead ductwork, an indoor air handler unit, and an outdoor condenser unit connected by lines at the side of the building.
Your air conditioner works hardest from June through September.

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$350 a year
  • A new unit at the federal minimum, 14.3 SEER2$370 a year

Estimates for a typical Greenwood 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 answer without a load calculation done on your actual house. A contractor measures your square footage, your windows, your insulation, and how your house holds heat, then runs a Manual J calculation to find the right size. Going bigger than what the calculation says is not a safety margin, it causes the unit to cool the air fast and shut off before it pulls the humidity out, which leaves the house feeling damp and cool at the same time.
Should I replace the whole system or just the outdoor unit?
If your indoor coil and outdoor unit are different ages or different efficiency levels, replacing just the outdoor unit can cause problems. The two are matched to work together, and pairing a new condenser with an old coil often means it won't perform the way it's rated to, and it can shorten the life of the new equipment. A contractor can look at both pieces and tell you whether the coil is still a good match or whether it makes more sense to replace them together.
Do HVAC contractors in Greenwood need a state license to work on my home?
Yes, HVAC contractors need a state license to do this work. Ask to see the license number before any work starts, and you can confirm it's valid and in good standing. A licensed contractor also carries insurance, which protects you if something goes wrong during the installation.
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