AC Installation in Lancaster, PA
A new air conditioner in Lancaster will run from June through August every year. Tell us about the house, and a licensed contractor who covers Lancaster County will get in touch.
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Three months of heat, and a season of storms
Lancaster County only asks an air conditioner to work hard for about three months, June through August, with afternoons averaging 84°F. The rest of the year the outdoor unit sits idle, but it still has to keep up during those summer months.
It also has to survive what the weather brings the rest of the time. Over the past ten years the county has recorded 31 hail events and 215 damaging wind events, with hail up to 1.5 inches. A new central air conditioner installed today has to meet a federal minimum of 13.4 SEER2, so that efficiency floor is already built into what a contractor will install.
- 3 months
- June through August, your air conditioner is on duty
- 84°F
- the average summer afternoon it cools against
- 31 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 Lancaster County compared with a new unit at the federal minimum.
Estimates for a typical Lancaster County home, from EIA household energy data, Pennsylvania fuel prices and NOAA climate normals. Your home will differ.
Pennsylvania requires contractors to register with the state.
That registration puts the business on file with the state and nothing more. There is no trade exam behind it, so it does not tell you whether the contractor knows how to size or install a condenser correctly. Pennsylvania also does not let Lancaster County or its towns layer on their own HVAC license, so this registration is the only state-level record that exists for whoever you hire.
For an air conditioner installation, the protection that matters comes from the local building office rather than the state. In most cities and counties the job needs a permit, and once the unit is in, an inspector checks the work itself rather than just the paperwork behind it. That inspection is what stands between you and a bad install here.
Source: Pennsylvania General Assembly
- 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 windows, insulation, ceiling height, and how much shade your house gets, then works out how much heat it gains on a summer afternoon. Too big and it cools the air fast but shuts off before it pulls the moisture out, leaving the house clammy. Too small and it runs constantly on the hottest days and still can't keep up. With summer highs here averaging 84°F, getting this number right matters more than picking a unit by the size of the one you're replacing.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit were installed together and matched to each other, replacing only the outdoor unit can throw off that match and hurt both efficiency and cooling. New outdoor units also have to meet the current 13.4 SEER2 minimum, and pairing one with an older indoor coil can keep it from reaching that rating. A contractor can check whether your existing coil and ductwork will work with a new outdoor unit, or whether the condition of the indoor coil means replacing both makes more sense. That depends on what's actually installed in your house, so have someone look at both pieces before deciding.
- Do HVAC contractors in Lancaster need a state license to work on my home?
- Pennsylvania doesn't license HVAC contractors the way some states do, but contractors here are required to register with the state's Bureau of Consumer Protection. Ask for their registration number before signing anything. It's a basic check that costs you nothing and confirms who you're dealing with.