​​AC Installation in Charleston, SC

When Charleston heat and humidity hit, a properly installed AC system isn’t a luxury – it’s essential. All Star Heating & Air provides professional AC installation in Charleston, SC, North Charleston, and Summerville, delivering efficient cooling, lower utility bills, and reliable comfort that lasts for years.

service man is cleaning repair maintenance air conditioner

Professional AC

Installation Services in Charleston, North Charleston & Summerville

Whether you’re replacing an aging unit or upgrading to high-efficiency cooling, our licensed technicians make the process simple. We handle load calculations, system design, installation, and final commissioning, so your new AC performs exactly as promised – no guesswork, no shortcuts.

Efficient Cooling from Day One

Correct sizing and setup are everything. An oversize system short-cycles, wastes energy, and leaves your home humid; an undersize unit runs constantly and still can’t keep up. We use Manual J–style load considerations (home size, insulation, windows, orientation) to match your home with the right-sized equipment for Charleston’s coastal climate.

Air Conditioning Systems We Install

  • Central Air Conditioners – Consistent whole-home cooling with today’s high-SEER2 efficiencies.
  • Ductless Mini-Split Systems – Room-by-room comfort and zoning, perfect for additions, bonus rooms, or homes without ductwork.
  • Heat Pumps (Cooling + Heating) – Efficient year-round comfort; ideal for Charleston’s mild winters and great when paired with gas furnace split systems for dual-fuel performance.
  • Packaged HVAC Units – All-in-one rooftop or slab systems for tight spaces or light commercial applications.
  • Gas Furnace Split Systems – Combined cooling + gas heating using an outdoor AC or heat pump matched with an indoor gas furnace for reliable comfort in every season.

High-Efficiency Cooling Options

We offer ENERGY STAR® and high-SEER2 systems that cut energy use, reduce noise, and improve comfort. Expect features like variable-speed compressors, ECM blower motors, and advanced humidity control to keep you cool without the energy spike.

servicemen teamworking hvac system

repairman doing air conditioner service

Why Charleston Homeowners

Choose Us for AC Installation

Local HVAC Experts

We live and work here. From Downtown and West Ashley to Park Circle and Summerville’s Nexton, we understand Lowcountry humidity, salt air, and the ductwork challenges common in historic and newer builds alike.

Licensed, Insured & Certified

Every installer is trained, background-checked, and fully licensed & insured. We follow manufacturer specs and local code to protect your comfort and your warranty.

Upfront Pricing & Honest Recommendations

You’ll get clear, written estimates and options that fit your home and budget. We recommend the right system – not just the most expensive one.

Better Indoor Air & Comfort Add-Ons

Ask about whole-home dehumidifiers, high-MERV filtration, UV air purification, and smart thermostats that level up comfort and air quality during Charleston’s muggiest months.

Our AC Installation Process

  1. In-Home Assessment & Sizing
    We evaluate square footage, insulation, ductwork condition, and your comfort goals to select properly sized equipment.
  2. Clear Proposal & Scheduling
    You’ll receive a transparent quote with equipment options (good/better/best), warranties, and any eligible incentives.
  3. Professional Installation
    We remove the old unit, protect your home, install new equipment, pressure-test lines, evacuate to manufacturer specs, and commission the system.
  4. Airflow & Controls Calibration
    We verify refrigerant charge, static pressure, supply/return temps, and thermostat programming for optimal performance.
  5. Homeowner Walkthrough & Maintenance Plan
    We show you how to use your system, share filter schedules, and offer a maintenance plan to keep efficiency high and warranties intact.

male technician overalls blue cap repairs air conditioner wall

Serving the Lowcountry

Our service area includes:

  1. Downtown
  2. West Ashley
  3. James Island
  4. Johns Island

  1. Park Circle
  2. Dorchester Corridor
  3. Goose Creek

  1. Cane Bay
  2. Nexton
  3. Knightsville

AC Installation FAQs

Most single-family installations finish in one day. Complex jobs (duct changes, electrical upgrades, or add-on IAQ equipment) may take 1–2 days. We’ll outline the timeline up front.

There’s no one-size-fits-all answer. We consider your home’s square footage, insulation, window exposure, ductwork, and air sealing to recommend the right tonnage and efficiency—avoiding the short-cycling and humidity issues caused by oversizing.

Yes. Ductless systems are great for bonus rooms, garages, older homes, or targeted zoning. They’re efficient, quiet, and offer both cooling and supplemental heating.

In most cases, yes—especially if you’re upgrading from a 10–13 SEER legacy unit to a modern SEER2 system. Many homeowners see noticeable reductions in summer bills plus better dehumidification and comfort.

Sometimes. For the best performance (and to preserve warranties), matched systems are recommended. We’ll assess compatibility and explain your options.

We handle permits, code requirements, and inspections where required. Your installation is done right and documented.

Absolutely. We recover refrigerant, remove the old equipment, and dispose of materials responsibly.

Yes—our maintenance plans include seasonal tune-ups, priority service, and member discounts. Regular service keeps your warranty valid and efficiency high.

Call All Star Heating & Air for AC Installation in Charleston, SC

Contact All Star Heating & Air today for expert, fast AC installation in Charleston, North Charleston, and Summerville, SC.