AC Installation in Lexington, NE
A new air conditioner in Lexington will run from June through August every year. Tell us about the house, and a licensed contractor who covers Dawson County will get in touch.
Tell us about the job
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What summers in Dawson County ask of a new AC
Summers here run three months, June through August, with afternoons averaging 85°F. That is not a long season, but a new air conditioner still needs to be sized right to keep up on the hot afternoons and cycle properly on the milder ones in between.
Dawson County also sees its share of hail and wind, with 93 hail events and 121 damaging wind events recorded over the past ten years, including hail up to 4 inches. An outdoor unit sits exposed to that weather, so where it goes and how it is protected matters. Any new central air conditioner installed today also has to meet the federal minimum of 13.4 SEER2.
- 3 months
- June through August, your air conditioner is on duty
- 85°F
- the average summer afternoon it cools against
- 93 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 Dawson County home, from EIA household energy data, Nebraska fuel prices and NOAA climate normals. Your home will differ.
Nebraska requires contractors to register with the state.
Registration puts a contractor's business on file with the Department of Labor. Nobody tests their work to get on that list, and the state does not track what happens after. It tells you the business is registered to operate in Nebraska. It does not tell you whether they install an air conditioner correctly.
For Dawson County, the protection on this job comes from the local permit process, not from the state. In most cities and counties, installing an air conditioner needs a permit from the local building office and an inspection once the work is done. That inspection is what checks the install, not the registration.
Source: Nebraska Legislature
- What size air conditioner does my house need?
- There isn't a size you can guess from square footage alone. A contractor works this out with a load calculation, which looks at your insulation, your windows, how much shade your house gets, and your layout, then matches the output to what your house actually loses and gains in heat. An oversized unit cools the air fast but shuts off before it pulls the moisture out, so rooms feel damp. An undersized one runs constantly and still can't keep up on the hottest afternoons. Ask whoever quotes the job to walk you through the load calculation rather than just naming a tonnage.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are different ages or different efficiency ratings, replacing only the outdoor unit usually causes problems. The two are matched at the factory to work together, and pairing a new condenser with an old coil can mean lost efficiency and, on some systems, a voided warranty. A contractor can check whether your existing coil and refrigerant lines will work with a new outdoor unit. New units also have to meet the federal minimum of 13.4 SEER2, and an old coil may not be able to reach that rating with the new refrigerant and pressures involved.
- Do HVAC contractors in Lexington need a state license to work on my home?
- Nebraska doesn't license HVAC contractors the way some states do. Contractors register with the state Department of Labor, which is a business record showing who they are, not a trade exam or a test of their skills. What you should check instead is their registration status and their insurance, and ask about their experience with AC installs specifically. You'll also need a permit from the local building office for the install, along with an inspection once the work is done.