Short Answer: If your AC is over 10–15 years old, needs frequent repairs, or your energy bills are rising, replacement may save you money long-term. But if the issue is small and the system’s under 10 years, repair might be the smart move. Let’s break it down Charleston-style. Key Questions to Ask Before You Decide

Short Answer: The right size AC unit depends on your home’s square footage, insulation, window exposure, and our famously humid Charleston climate. A professional load calculation is imperative for correct sizing. Too small of a system will never maintain target temp and run endlessly. Too big, and the system will short cycle “not run enough”

Short Answer: Most homeowners should change their air filters every 1–3 months. But in Charleston, with our high humidity, salty air, and pollen-packed seasons, you might want to check them monthly, especially if you have pets, allergies, or run your system often. Why Air Filter Changes Matter 1. Efficiency and Energy Bills 2. Air Quality

Short Answer: If your AC isn’t cooling, the most common issues are dirty air filters, low refrigerant, thermostat problems, or a failing compressor. But let’s unpack that—because Charleston’s heat is no joke. Common Reasons Your AC Isn’t Cooling 1. Clogged or Dirty Air Filters 2. Low Refrigerant (a.k.a. Freon) 3. Thermostat Malfunction 4. Electrical Issues