Central AC or a mini split for your Wilmington home?

If you have good ductwork, central AC is the cheaper whole-home option. If you don’t have ducts or need zone control, mini splits avoid $3,000–$7,000 in ductwork costs and dehumidify better — which matters a lot in Wilmington’s 80–90% summer humidity.

Choose Central AC If:

• Your home already has ductwork in good condition
• You’re replacing an existing central AC (straightforward swap, lowest cost)
• Open floor plan — central AC handles large open spaces well
• You want a clean look with only vents visible

Whole-home cost: $4,000–$8,000 installed

Choose a Mini Split If:

• No existing ductwork (running new ducts costs $3,000–$7,000+)
• Adding a room — garage conversion, enclosed porch, bonus room, home office
• You want zone control — cool only the rooms you’re actually using
• Humidity control is a priority — mini splits with inverter compressors dehumidify more effectively than standard central AC
• You want heating and cooling from one system — every mini split is a heat pump

Single room: $3,000–$5,000 | Whole-home (4–5 zones): $10,000–$18,000

The Hybrid Approach

Many Wilmington homeowners keep central AC for the main living areas and add a mini split for the trouble spot — the upstairs bedroom that’s always hot, the Florida room, or the detached garage office. $3,000–$5,000 solves the problem without redesigning the whole system.

Why Efficiency Matters More in Wilmington

Wilmington runs AC 6+ months per year (May through October, sometimes longer). Upgrading from 14 SEER2 to 20 SEER2 saves $400–$500 per year in electricity. Over a 15-year system life, that’s $6,000–$7,500 in savings — often more than the price difference between standard and high-efficiency equipment.