AC Installation in Peachtree City, GA
A new air conditioner in Peachtree City will run from May through September every year. Tell us about the house, and a licensed contractor who covers Fayette County will get in touch.
Tell us about the job
It takes about a minute.
Five months of afternoons near 89
Your air conditioner runs May through September in Peachtree City, five months of the year working against summer afternoons that average 89°F. That is a long stretch for one unit to carry the load day after day.
Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2. That is the efficiency floor, not a feature. Fayette County has also logged 72 damaging wind events and 7 hail events over the past ten years, so the outdoor unit is worth setting up with that in mind.
- 5 months
- May through September, your air conditioner is on duty
- 89°F
- the average summer afternoon it cools against
- 7 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 Fayette 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.
The license comes from the State Construction Industry Licensing Board, and it belongs to the contractor, not to any one job. The board has tested the person holding it and keeps a record of who they are, so anyone doing licensed HVAC work in Georgia, including in Fayette County, has already been checked before they get to your house.
For an air conditioner installation, that license is what stands behind the work itself. Beyond it, most cities and counties also require a permit for a new air conditioner, with an inspection once the installer is done, so the work gets a second look from the local building office after the contractor's license has already accounted for who is doing it.
Source: Georgia Secretary of State
- What size air conditioner does my house need?
- The right size comes from a load calculation, not a rule of thumb based on square footage. A contractor measures your insulation, window area, ceiling height, and duct layout to figure out how much heat your house actually gains on a 89°F afternoon here. An oversized unit cools the air fast but shuts off before it pulls the moisture out, so the house feels damp. An undersized one runs constantly all summer and still can't keep up. Have a contractor size it for your house rather than guessing from the old unit or the square footage alone.
- Should I replace the whole system or just the outdoor unit?
- In most cases you replace both the outdoor unit and the indoor coil together. The two 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 gain you paid for, and some manufacturers won't warranty the mismatch. The exception is when the coil is young and still in good shape, which a contractor can check when they look at the system. If the coil is original to a unit that's been running for years, plan on replacing both.
- Do HVAC contractors in Peachtree City need a state license to work on my home?
- Yes. Georgia requires HVAC contractors to hold a state license, issued by the State Construction Industry Licensing Board. Ask to see the license number before work starts, or look it up yourself. This matters for AC installation especially, since the work has to meet the federal efficiency minimum of 14.3 SEER2 that applies to new central air conditioners, and a licensed contractor is who's accountable for that.


