AC Installation in London, KY
A new air conditioner in London will run from June through September every year. Tell us about the house, and a licensed contractor who covers Laurel County will get in touch.
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What summers in Laurel County ask of a new AC
Your air conditioner works from June through September here, about four months a year. Summer afternoons average 84°F, so it runs through real heat for most of that stretch, not just a few hot spells.
Laurel County also sees its share of storms. Over the last ten years the area has recorded 21 hail events and 115 damaging wind events, so an outdoor unit needs to hold up to more than sun and heat. If you're installing new, any central air conditioner built since 2023 has to meet a federal minimum of 14.3 SEER2.
- 4 months
- June through September, your air conditioner is on duty
- 84°F
- the average summer afternoon it cools against
- 21 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 $10 a year.
Estimates for a typical Laurel 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.
Kentucky's license comes from the Department of Housing, Buildings and Construction, and the state tested the contractor and keeps a record of it. That license belongs to the contractor, not to any single job, so it's already in place before your air conditioner install is scheduled.
The license tells you the contractor was tested and is on record with the state. What it doesn't do is inspect your particular installation, and that's where the local building office comes in. In most cities and counties here, putting in a new air conditioner needs a permit and an inspection once the work is finished, and that inspection is what checks the actual job in your house, not just the contractor's standing.
Sources: Kentucky Legislative Research Commission · Kentucky Department of Housing, Buildings and Construction
- What size air conditioner does my house need?
- It depends on your home's square footage, ceiling height, insulation, window count and layout, so there's no single answer that fits every house. A contractor works this out with a load calculation, not a rule of thumb based on square footage alone. Going with a bigger unit than you need isn't a safety margin, it actually causes short cycling and leaves the house feeling damp. Have a contractor size it for your specific home before you buy anything.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are matched and both in good shape, replacing just the outdoor unit can work. But if the system is old, mismatched coils and compressors run poorly together and often fail early, so a contractor will usually recommend replacing both at once in that case. Age matters too. A furnace or coil that's near the end of its life isn't worth pairing with new outdoor equipment. A contractor can look at both pieces and tell you honestly whether a split replacement makes sense for your setup.
- Do HVAC contractors in London 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 doing the work, not the individual job. On top of that, installing an air conditioner in London typically needs a permit from the local building office, with an inspection once the work is finished.