Installing a new AC unit is a significant investment—and on Sullivan’s Island, where heat, humidity, and salty coastal air put extra demands on your system, proper air conditioning installation is key. A poorly installed air conditioner can lead to inefficient cooling, higher energy bills, and costly repairs down the line.
In this blog, we’ll explore some of the most common AC installation mistakes homeowners make—and how to avoid them.
1. Choosing the Wrong System Size
One of the biggest mistakes is installing an AC that’s too large or too small. An oversized HVAC unit cools the home quickly but cycles on and off too often, leading to wasted energy and uneven temperatures. An undersized unit struggles to keep your home comfortable, especially during Sullivan’s Island’s hot summers.
Work with a professional to perform a proper load calculation and select a system sized for your home.
2. Ignoring Ductwork Issues
Even the best AC won’t perform well with leaky or poorly designed ducts. Damaged ducts reduce airflow, increase energy consumption, and can cause uneven cooling throughout the house.
Have a licensed HVAC technician inspect and repair your ductwork before installing a new system.
3. Poor Placement of the Indoor or Outdoor Unit
Where your AC components are installed matters. Placing the outdoor unit in direct sunlight or blocking airflow can reduce efficiency. Indoors, poor vent placement can lead to hot or cold spots.
Professionals will evaluate your home layout and choose locations that maximize airflow and efficiency.
4. Skipping Proper Refrigerant Charging
Incorrect refrigerant levels are a common problem with DIY or rushed installations. Too much or too little refrigerant affects cooling, increases energy bills, and can damage the compressor.
Only a licensed HVAC technician should handle refrigerant charging to ensure the new HVAC system operates safely and efficiently.
5. Overlooking Regular Maintenance Planning
Even a perfectly installed AC can lose efficiency over time without proper upkeep. Skipping maintenance leads to clogs, leaks, and decreased performance.
Set up a regular maintenance schedule from day one—clean filters, inspect coils, and monitor system performance to extend your AC’s lifespan.
Stay Comfortable with Sullivan’s Island AC Installation from Dunes Heating and Air Conditioning
Avoiding these common mistakes ensures your new air conditioning system keeps your home cool, energy-efficient, and reliable for years to come. At Dunes Heating and Air Conditioning, we specialize in professional AC installation for Sullivan’s Island and the surrounding areas.
From system selection to precise installation and ongoing maintenance, we help homeowners stay comfortable, no matter how hot or humid it gets.
Ready to install a new AC? Contact us today for expert service and proper installation you can trust.