AC Installation in La Grange, KY
A new air conditioner in La Grange will run from May through September every year. Tell us about the house, and a licensed contractor who covers Oldham County will get in touch.
Tell us about the job
It takes about a minute.
Five months of Kentucky heat to plan for
La Grange runs its air conditioner May through September. Summer afternoons average 86°F, and a new system has to hold that line day after day for five months straight, not just on the hottest week.
Oldham County has also seen its share of hail and wind, 23 hail events and 60 damaging wind events over the last ten years, with hail up to 1.75 inches. The outdoor unit sits through all of that, so where it's installed and how it's protected matters as much as the equipment itself. Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2, so that's the starting point, not the finish line, when you're comparing systems.
- 5 months
- May through September, your air conditioner is on duty
- 86°F
- the average summer afternoon it cools against
- 23 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 Oldham County home, from EIA household energy data, Kentucky fuel prices and NOAA climate normals. Your home will differ.
Kentucky requires HVAC contractors to hold a state license.
The Department of Housing, Buildings and Construction keeps the license on file. It belongs to the contractor, not to any single job, so it covers this installation the same as any other work they take on.
In most cities and counties, installing an air conditioner also needs a permit from the local building office, with an inspection once the work is done. That check is separate from the state license, and it looks at the installation itself rather than the contractor.
Sources: Kentucky Legislative Research Commission · Kentucky Department of Housing, Buildings and Construction
- What size air conditioner does my house need?
- The right size comes from a load calculation, not the square footage of your house. A contractor looks at your insulation, your windows, how many walls face the afternoon sun, and how your ductwork is laid out before landing on a number. An oversized unit cools the air fast but shuts off before it pulls the moisture out, so the house feels clammy even at the right temperature. An undersized one runs constantly on the 86°F afternoons La Grange gets all summer and still falls behind. Ask the contractor to walk through the calculation with you rather than quote a size off the house alone.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit were matched when they were installed, replacing only the outdoor unit can mean the coil no longer matches. Air conditioners are designed as matched pairs, and pairing a new outdoor unit with an old indoor coil can leave you without the efficiency or the warranty you're paying for. Age matters too. A failed outdoor unit paired with a coil that's just as old is often a sign the whole system is near the end of its life. A contractor can check your specific equipment and tell you whether the coil is still compatible.
- Do HVAC contractors in La Grange need a state license to work on my home?
- Yes. Kentucky requires HVAC contractors to hold a state license, issued through the Department of Housing, Buildings and Construction. That license covers the contractor as a business, not each individual job. For an air conditioner installation, you'll also typically need a permit from the local building office, with an inspection once the work is finished.