Ductless Mini Split Installation in Charleston, SC
Let 3 Generations of Our Family Serve Your Family

Professional Mini Split Installation From a Charleston Team With 40 Years of Experience
Carney & Son 72 Degrees is a local, family-owned HVAC company serving Charleston and the surrounding areas since 1984. If you’re adding comfort to a room addition, a sunroom, a converted garage, or planning to install a whole-home ductless system in Charleston, we’ll size and install the right equipment for your space. Appointments are scheduled within 24 hours. Our technicians are licensed, bonded, and insured, and we explain your pricing before any work begins.
Why Charleston Homeowners Choose Ductless Mini Splits
Ductless systems are useful for comfort challenges that traditional ducted HVAC may not address well:
- Room additions, sunrooms, and finished basements without existing ductwork
- Homes where running new ductwork is impractical or too expensive
- Individual rooms that never reach the right temperature on a central system
- Replacing window units with a quieter, cleaner, more efficient solution
- Whole-home conditioning for older Charleston properties built without ductwork
- Zoned comfort so different rooms can stay at different temperatures
What We Install: Single-Zone and Multi-Zone Systems
We install ductless mini splits from leading manufacturers and match the right configuration to your home:
- Single-zone systems: one outdoor unit, one indoor air handler. Right for one room or area.
- Multi-zone systems: one outdoor unit, multiple indoor handlers. Each zone can be set to its own temperature.
- Wall-mounted units: the standard configuration for bedrooms, living areas, and offices
- Ceiling cassette units: flush-mounted for a cleaner look in open-plan or commercial spaces
- Floor-mounted units: suited to rooms with limited wall space or floor-to-ceiling windows
We install systems from Mitsubishi Electric, Daikin, LG, Fujitsu, and other major brands. Every installation includes smart thermostat setup when you want it.
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Professional AC Installation Crew
If you are ready to install a new air conditioner in your home or would like to discuss your options, we are ready to help. Our team of technicians is looking forward to helping you with AC replacement in Charleston. We can also help you choose the right type of unit for your home if you are uncertain which model is the best option.
What to Expect During Your Installation Appointment
- Site Assessment: We visit your home, evaluate the layout, and confirm the best placement for indoor and outdoor units.
- Recommendation: We size the system correctly for your space and confirm pricing before any work starts.
- Installation Day: We run the refrigerant line set, mount the indoor unit or units, place the outdoor condensing unit, and complete all electrical connections.
- System Start-Up: We charge the system, run a full operational test, and confirm the equipment is performing correctly.
- Walk-Through: We show you how to operate the system and answer questions before we leave.
Mini Split Installation Cost and Estimate Expectations in Charleston
Costs vary based on the number of zones, the equipment brand and efficiency rating, and the complexity of the line set routing. We provide a written estimate before the project begins. Financing is available at 0% for 18 months through GreenSky.
What Affects Price
- Single-zone versus multi-zone configuration
- Equipment brand and SEER2 efficiency rating
- Length and routing of the refrigerant line sets
- Electrical panel capacity and any required panel upgrades
- Permits and labor, when required, should be clearly included in the estimate.
Appointments Scheduled Within 24 Hours
Technician Seal of Safety
0% Financing for 18 Months
2-Year Labor Warranties
Licensed & Insured Technicians
100% Satisfaction Guaranteed
BBB-Accredited Business with an A+ Rating
HomeAdvisor Screened & Approved
Over 40 Years of Experience


Charleston Climate Considerations for Mini Split Repair
Coastal Humidity and Salt Air
Charleston’s salt air and humidity accelerate wear on refrigerant line connections, electrical components, and outdoor unit surfaces. Keeping coils clean and connections properly sealed is especially important in this climate.
Long Cooling Seasons
Mini-splits in Charleston often operate for long periods during the extended warm season. When annual maintenance is skipped, systems may develop refrigerant and drainage issues faster than they would in milder regions. A spring tune-up before peak heat arrives helps keep the system efficient when you need it most.
Schedule Mini Split Repair in Charleston Within 24 Hours
When your ductless system isn’t keeping up, Carney and Son is ready to help. Call us at 843-867-2377 or request an appointment online, and we’ll schedule your visit within 24 hours. We provide upfront pricing before work begins, and we stand behind every repair with a 2-year labor warranty.
FAQ
How much does ductless mini split installation cost in Charleston?
How long does a mini split installation take?
Do I need permits for a mini split installation in Charleston?
What's the difference between a single-zone and a multi-zone system?
Will a ductless mini split work well in Charleston's humidity?
Areas We Serve:
- Charleston, SC
- Goose Creek, SC
- James Island, SC
- Johns Island, SC
- Kiawah Island, SC
- Mount Pleasant, SC
- North Charleston, SC
- Seabrook Island, SC
- Sullivan’s Island, SC
- Summerville, SC

