Cooling System
Cooling System | Air Conditioning | Heating and Air Conditioning | Charleston
Nestled between the marshes and the Atlantic, Charleston summers can feel sweltering one minute and storm-damp the next. HEP keeps local homes perfectly balanced with expert air conditioning solutions that tame humidity, slash energy waste, and deliver an even, whisper-quiet chill to every corner of your space. From historic downtown townhouses to new builds on the islands, we design each system to respect the character of your home while meeting today’s rigorous efficiency standards.
Our certified technicians arrive on time, listen to your comfort concerns, and use cutting-edge diagnostics to recommend repairs or upgrades that fit your budget—never upselling what you don’t need. Whether it’s a rapid-response fix on the hottest day in July or a seasonal tune-up that prevents surprise breakdowns, we bring honest craftsmanship and a neighborly smile to every visit.
Ready to feel the difference? Call HEP for Charleston’s most dependable air conditioning care, and enjoy cool peace of mind all year long.
FAQs
How often should I have my air conditioner serviced in Charleston’s coastal climate?
Because of Charleston’s long cooling season, high humidity, and salty coastal air, we recommend professional maintenance twice a year—once in early spring before peak heat and again in late summer or fall. Regular tune-ups include coil cleaning, refrigerant check, electrical testing, and airflow calibration, which prevent corrosion, reduce breakdowns, and can lower operating costs by up to 15 %.
What size air conditioning system do I need for my Lowcountry home?
Proper sizing depends on square footage, insulation quality, window orientation, ceiling height, and even local shade or sea breezes. Our technicians perform a Manual J load calculation to determine the exact BTU capacity. Oversized units short-cycle, causing humidity problems, while undersized systems run constantly and wear out faster. A typical 2,000 sq ft Charleston home may need 2.5–3.0 tons, but we always verify with precise measurements.
Are there energy-efficient AC options that handle Charleston’s heat and humidity?
Yes. High-SEER (15–20+) variable-speed heat pumps and inverter-driven condensers excel in our humid subtropical climate. They modulate output to remove more moisture, maintain even temperatures, and cut electricity usage by 30–40 % versus standard single-stage units. Pairing the system with a smart thermostat, sealed ductwork, and proper attic insulation maximizes savings and may qualify for Duke Energy rebates or federal tax credits.
How can I improve indoor air quality while my AC is running?
Install a media filter (MERV 11–16), UV air purifier, or whole-home dehumidifier to capture pollen, mold spores, and coastal allergens common in Charleston. Keep humidity between 45–55 % to deter mold growth. Remember to change 1-inch filters monthly (or thicker filters every 3–6 months) and schedule duct cleaning every 5–7 years if you notice dust buildup, odors, or recent renovations.
How long does a central air conditioner last in Charleston, and when should I replace instead of repair?
With routine maintenance, most systems last 10–15 years, but salt air and high run times can shorten life expectancy. Consider replacement when repairs exceed 40 % of the price of a new unit, refrigerant leaks involve phased-out R-22, or your SEER rating is below 13 and utility bills keep climbing. Modern units can cut annual cooling costs enough to pay for themselves in 3–5 years.
Do I need permits or inspections for a new AC installation in Charleston, South Carolina?
Yes. Charleston County and most surrounding municipalities require mechanical permits for AC replacements or new installations. Our licensed HVAC team handles the permit application, schedules any required inspections, and ensures the system meets South Carolina Mechanical Code, proper clearance, and hurricane tie-down regulations. This protects your warranty, homeowner’s insurance, and overall safety.