AC Installation in Wilmington, NC
A new air conditioner in Wilmington will run from May through September every year. Tell us about the house, and a licensed contractor who covers New Hanover County will get in touch.
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Wilmington summers ask a lot of a new air conditioner
Your air conditioner runs from May through September here, five months of the year, with summer afternoons averaging 88°F. That is a long stretch of steady work, and the unit you install needs to hold up through all of it.
Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2. Beyond that baseline, the right size and the right installation matter as much as the equipment itself, especially with a cooling season this long.
- 5 months
- May through September, your air conditioner is on duty
- 88°F
- the average summer afternoon it cools against
- 12 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 New Hanover County compared with a new unit at the federal minimum.
Estimates for a typical New Hanover County home, from EIA household energy data, North Carolina fuel prices and NOAA climate normals. Your home will differ.
North Carolina requires HVAC contractors to hold a state license.
The license is issued to the contractor, not the job, so it covers whoever runs the business rather than any single installation. The state's board keeps the record of who holds one and tested them to get it.
For your install, that license is what stands behind the person doing the work, but the job itself still goes through the local building office. In most cities and counties in North Carolina, putting in a new air conditioner needs a permit and an inspection once the work is finished, which is separate from the contractor's license and checks the installation itself rather than the person doing it.
Sources: North Carolina General Assembly · North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors
- What size air conditioner does my house need?
- There's no fixed answer without a load calculation on your actual house. A contractor measures your square footage, your insulation, your windows, and how much shade your house gets, then runs what's called a Manual J calculation to size the unit. Going too big is just as bad as going too small. An oversized unit cools the air fast but shuts off before it pulls the humidity out, so the house feels clammy even at the right temperature.
- 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 just the outdoor unit usually isn't a good match. The coil and the condenser are matched by the manufacturer to work together at a certain capacity and refrigerant charge. Pairing a new condenser with an old coil can mean lower efficiency than either part is rated for, and some manufacturers won't warranty the new equipment in a mismatched setup. A contractor can check your coil's age and condition and tell you whether it can pair with new outdoor equipment or whether the whole system needs to go at once.
- Do HVAC contractors in Wilmington need a state license to work on my home?
- Yes. North Carolina requires HVAC contractors to hold a state license, issued through the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors. The license is held by the contractor, not issued per job. For an AC installation, you'll also need a permit from the local building office, with an inspection once the work is done.