AC Installation in Newnan, GA
A new air conditioner in Newnan will run from May through September every year. Tell us about the house, and a licensed contractor who covers Coweta County will get in touch.
Tell us about the job
It takes about a minute.
Five months of Georgia heat, every year
Coweta County runs its air conditioners May through September, five months of the year, with summer afternoons averaging 88°F. That is a long stretch for a system to hold up under, and it is worth putting in one built for it.
Any new central air conditioner installed today has to meet 14.3 SEER2, the federal efficiency minimum. That is the floor, not a feature. Beyond that, what matters is a unit sized right for your house and installed so it runs the way it is supposed to for the five months a year it has to work.
- 5 months
- May through September, your air conditioner is on duty
- 88°F
- the average summer afternoon it cools against
- 29 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet

NOAA nClimDiv, 1991–2020 normals
Going above the federal minimum saves little here, about $20 a year.
Estimates for a typical Coweta County home, from EIA household energy data, Georgia fuel prices and NOAA climate normals. Your home will differ.
Georgia requires HVAC contractors to hold a state license.
Georgia licenses HVAC contractors through the State Construction Industry Licensing Board. That license covers the contractor, not the job, so the same license stands behind this install as behind every other job that contractor takes on anywhere in the state.
For this job, that license is what stands behind the work. On top of it, most cities and counties in Georgia require a permit before the new air conditioner goes in, and an inspection once it is installed. That check is separate from the license and comes from the local building office, not the state board.
Source: Georgia Secretary of State
- What size air conditioner does my house need?
- There is no single answer without a load calculation done for your house. A contractor figures this from your square footage, your insulation, how many windows you have and which way they face, and your ceiling height. Putting in a unit that is too big cools the air fast but shuts off before it pulls the humidity out, so the house feels damp. Too small and it runs constantly on the 88°F afternoons here and still cannot keep up.
- Should I replace the whole system or just the outdoor unit?
- In most cases you replace both together. The outdoor unit and the indoor coil are matched to work at a specific efficiency and capacity, and pairing a new outdoor unit with an old coil usually means you lose the efficiency rating you are paying for, sometimes voids the warranty, and can shorten the life of the new equipment. If your indoor coil is still young and in good shape, a contractor can tell you whether it will actually match up with what you are installing outside. That is a judgment worth getting in person rather than guessing at.
- Do HVAC contractors in Newnan need a state license to work on my home?
- Yes. Georgia requires anyone doing HVAC work to hold a state license, issued by the State Construction Industry Licensing Board. Ask to see it before work starts, not after.


