AC Installation in Liberty, MO
A new air conditioner in Liberty will run from May through September every year. Tell us about the house, and a licensed contractor who covers Clay County will get in touch.
Tell us about the job
It takes about a minute.
Five months of real heat, and hail on top of it
Liberty gets five months of cooling season, May through September, with summer afternoons averaging 86°F. That is not the kind of heat that pushes a unit to its limit, but it is steady work for months at a stretch, and a system that's already struggling will show it during that stretch.
Clay County has also logged 94 hail events and 116 damaging wind events over the past ten years, with hail up to 2.75 inches. The outdoor unit sits outside through all of that, so the condenser coil and fins take the brunt of any storm that comes through. Any new central air conditioner installed today has to meet a federal minimum of 13.4 SEER2, so that baseline is already built into what a contractor can install.
- 5 months
- May through September, your air conditioner is on duty
- 86°F
- the average summer afternoon it cools against
- 94 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
A higher-efficiency unit would save about $30 a year to run in Clay County compared with a new unit at the federal minimum.
Estimates for a typical Clay County home, from EIA household energy data, Missouri fuel prices and NOAA climate normals. Your home will differ.
- What size air conditioner does my house need?
- The right size comes from a load calculation, not a guess based on square footage. A contractor measures your windows, insulation, ceiling height, and how many walls face the afternoon sun, then runs those numbers through a Manual J calculation. Too big and it cools the air fast but never runs long enough to pull the moisture out, so the house feels clammy. Too small and it runs constantly through those hot afternoons and still can't keep up. With summer highs around 86°F here, getting this right matters more than picking a number off a chart.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are more than a few years apart in age, replacing just the outdoor unit usually causes problems. The two are matched to work together, and pairing an old coil with a new condenser can mean poor cooling and added strain on the new equipment. New units also run on higher efficiency standards, R-32 or R-454B refrigerant, which older coils weren't built for. A contractor can check what you have and tell you whether the coil will hold up with a new outdoor unit or whether it makes more sense to replace both.
- Do HVAC contractors in Liberty need a state license to work on my home?
- Yes, HVAC contractors need a state license to install or service central air conditioning systems. Licensing means the contractor has met required training and testing standards for refrigerant handling, electrical work, and system design. It also gives you recourse if something goes wrong with the work. Ask to see the license number before any work starts, and check that it's current.