AC Installation in Pascagoula, MS
A new air conditioner in Pascagoula will run from April through October every year. Tell us about the house, and a licensed contractor who covers Jackson County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of cooling in Pascagoula heat
Air conditioners here run from April through October, with summer afternoons averaging 90°F. That is most of the year asking a unit to keep up, and it needs to be sized and installed to do that without strain.
Jackson County has also logged 26 hail events and 29 damaging wind events over the past ten years. A new outdoor unit sits exposed to that. Any central air conditioner installed new today has to meet a federal efficiency minimum of 14.3 SEER2.
- 7 months
- April through October, your air conditioner is on duty
- 90°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 Jackson County compared with a new unit at the federal minimum.
Estimates for a typical Jackson County home, from EIA household energy data, Mississippi fuel prices and NOAA climate normals. Your home will differ.
Mississippi requires HVAC contractors to hold a state license.
The board tests the contractor before handing out the license, and it keeps a record of who holds one. That license belongs to the contractor, not the job, so it does not expire the day your installation is finished and it does not get reissued for your address. It tells you this person or company already had to prove they know the trade before the state let them work in it.
For an air conditioner installation in Jackson County, the license is what stands behind the person doing the work, but it is not the only check on this job. Most cities and counties also require a permit before the installation starts and an inspection once it is done, separate from anything the state licensing board does. That inspection is what confirms the unit was put in correctly at your house, not just that the contractor was qualified to do it.
Source: Mississippi State Board of Contractors
- What size air conditioner does my house need?
- There's no set number that works for every house. A contractor figures this out with a load calculation, which looks at your square footage, insulation, window placement, ceiling height, and how much shade your house gets. Guessing on size costs you either way. Too big and it cools the air fast but never runs long enough to pull the humidity out, so the house feels clammy. Too small and it runs constantly on those 90°F afternoons and still can't keep up. Ask whoever quotes the job to walk you through the calculation, not just hand you a number.
- Should I replace the whole system or just the outdoor unit?
- It depends on how old the indoor coil is and whether it's rated to work with a new outdoor unit. The two halves of your system are matched at installation, and pairing a new condenser with an old, mismatched coil usually means you lose efficiency and sometimes voids the warranty on the new equipment. If your system is old enough that the outdoor unit is failing, the indoor coil is likely close behind it. A contractor can check the coil's condition and tell you whether it's worth keeping or whether replacing both makes more sense for your house.
- Do HVAC contractors in Pascagoula need a state license to work on my home?
- Yes. Mississippi requires HVAC contractors to hold a state license through the State Board of Contractors. That license covers the contractor as a business, not each individual job, so it's worth asking to see it before work starts. Beyond the state license, installing a new air conditioner in most cities and counties also requires a permit from the local building office, plus an inspection once the work is finished. A licensed contractor should handle pulling that permit as part of the job.


