An outdoor air conditioning condenser unit installed beside the exterior wall of a blue vinyl-sided house at sunset.

AC Installation in Fayetteville, AR

A new air conditioner in Fayetteville will run from June through September every year. Tell us about the house, and a licensed contractor who covers Washington 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.

Four months of real heat in Fayetteville

Summer afternoons here average 87°F, and your air conditioner runs from June through September to hold the house against it. That is the stretch a new unit has to be sized and installed for.

Washington County has also logged 123 hail events and 99 damaging wind events over the past ten years, with hail up to 5 inches recorded. An outdoor condenser sits through that weather every year. Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2, so the efficiency floor is already set. What is left to get right is the size of the unit and the installation itself.

4 months
June through September, your air conditioner is on duty
87°F
the average summer afternoon it cools against
123 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, ceiling ductwork connected to an indoor air handler, and an outdoor condenser unit beside the exterior wall.
Your air conditioner works hardest from June through August.

NOAA nClimDiv, 1991–2020 normals

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

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

  • A higher-efficiency unit$230 a year
  • A new unit at the federal minimum, 14.3 SEER2$240 a year

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

Arkansas requires HVAC contractors to hold a state license.

Arkansas licenses the contractor, not the job. The license means the state tested this business and keeps a record of it, and that record exists no matter where in the state they work. Counties and cities cannot add their own license on top of it, so the state's license is the only one that applies in Washington County.

For an air conditioner installation, that license is what stands behind the contractor's qualification to do the work at all. The installation itself will also need a permit from the local building office in most cities and counties, with an inspection once the work is done. The permit and inspection check the job itself. The license is what checks the contractor doing it.

Source: Arkansas Department of Labor and Licensing

What size air conditioner does my house need?
The right size depends on your home's square footage, how much shade it gets, how many windows it has, and how well it's insulated, so there's no number that applies to every house. A contractor will figure this out with a load calculation, not a chart based on square footage alone. An oversized unit cools the air fast but shuts off before it pulls the humidity out, so the house feels clammy even at the temperature you set. An undersized one runs constantly through Fayetteville's summer afternoons, which sit around 87°F, and still struggles to keep up. Get the calculation done rather than matching whatever size is already out there.
Should I replace the whole system or just the outdoor unit?
If your outdoor unit and indoor coil are original to each other and matched by the manufacturer, replacing only the outdoor unit usually means putting a new compressor next to an old, mismatched coil. That mismatch can keep the new unit from reaching the efficiency it's rated for, and some manufacturers won't warranty a new outdoor unit paired with an old coil at all. Age matters too. New central air conditioners have had to meet a 14.3 SEER2 minimum since 2023, so if your indoor coil predates that, it likely wasn't built to work with a unit at that efficiency level. A contractor can check whether your coil is a match before you decide.
Do HVAC contractors in Fayetteville need a state license to work on my home?
Yes. Arkansas requires HVAC contractors to hold a state license, so anyone installing or servicing your air conditioner should be able to show one.