AC Installation in Greenwood, IN
A new air conditioner in Greenwood will run from June through September every year. Tell us about the house, and a licensed contractor who covers Johnson County will get in touch.
Tell us about the job
It takes about a minute.
Four months of real heat in Greenwood
Summer afternoons in Greenwood average 83°F, and your air conditioner works to keep the house comfortable from June through September. That is the stretch where a unit either holds up or falls behind.
A new system installed here has to meet the federal minimum of 13.4 SEER2, the efficiency standard set for central air conditioners built since 2023. Whatever gets installed on your house will meet that baseline or beat it.
- 4 months
- June through September, your air conditioner is on duty
- 83°F
- the average summer afternoon it cools against
- 26 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 Johnson County compared with a new unit at the federal minimum.
Estimates for a typical Johnson County home, from EIA household energy data, Indiana fuel prices and NOAA climate normals. Your home will differ.
In Indiana, HVAC licensing for homes is left to the counties and cities.
Johnson County sets its own rule for who can do this work, since Indiana leaves HVAC licensing to the counties and cities. There is no state list to check against and no state exam behind the work. Whether this county or the city within it licenses contractors, and what that checks, is a local matter, not a state one.
What covers this installation instead is the permit. In most cities and counties, putting in a new air conditioner needs a permit from the local building office, with an inspection once the work is done. The permit is not a license, but it puts a second set of eyes on the job before it is signed off.
Sources: Indiana Department of Workforce Development · State of Indiana
- What size air conditioner does my house need?
- The right size depends on your square footage, your ceiling height, how much shade your house gets, and how well it's insulated, so there's no number that applies to every home. An oversized unit cools the air fast but shuts off before it pulls the humidity down, so the house feels clammy even at the right temperature. A contractor will run a load calculation on your actual house before recommending a size, and that's the only way to get it right.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are different ages or different efficiency levels, replacing just the outdoor unit usually isn't a good match. The two are matched at the factory for a reason, and pairing an old coil with a new condenser can mean you lose efficiency and put more strain on the new unit. If your system is old enough that the outdoor unit is failing, the indoor coil is likely close behind it. A contractor can look at both and tell you whether a matched pair makes more sense than a single swap.
- Do HVAC contractors in Greenwood need a state license to work on my home?
- Indiana doesn't license HVAC contractors at the state level, it leaves that to counties and cities. Whether Greenwood or Johnson County requires a local license is worth asking the contractor directly before you hire them.


