AC Installation in Charleston — Sized Right, Installed Right, Guaranteed
At Blanton & Sons, we’ve been installing AC systems across Greater Charleston since 1998. Every installation starts with a real load calculation — not a guess based on square footage — and ends with our workmanship guarantee. We install American Standard and Rheem equipment, two brands we chose specifically because they hold up in the Lowcountry’s demanding coastal climate.
Licensed & Insured
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Transparent Pricing
Why Us
When summer heat meets AC problems in Charleston
When your air conditioner fails during Charleston’s intense summer heat, it quickly becomes more than an inconvenience—it’s an emergency that affects your entire household. Before assuming you need a full system replacement, West Ashley homeowners should book a diagnostic visit with our AC repair in West Ashley crew — many emergency calls turn out to be a fixable component, not an end-of-life unit. Those sweltering days with 90+ temperatures and high humidity demand a functioning cooling system, and delays in repairs can make your home unbearable.
A new air conditioning system is one of the biggest investments you’ll make in your home. It’s also one of the easiest to get wrong. An oversized unit short-cycles, wastes energy, and can’t control Charleston’s humidity. An undersized one runs constantly and never quite gets the house comfortable. And even a perfectly sized system will underperform if the installation is sloppy.
Professional AC installation capabilities for every Charleston home
Complete System Assessment
We evaluate your home’s size, layout, insulation, and existing ductwork to determine the perfect AC system size and type for maximum efficiency and comfort.
Energy-Efficient Options
High-SEER rated systems that slash your monthly electric bills while keeping your home consistently cool, even during Charleston’s most brutal heat waves and humidity spikes.
Ductwork Integration
Professional ductwork modification or replacement ensures proper airflow throughout your home, eliminating hot spots and reducing strain on your new AC system for years.
Smart Thermostat Setup
WiFi-enabled thermostat installation lets you control your new AC remotely, schedule temperature changes, and monitor energy usage from anywhere using your smartphone.
Quality Brand Selection
We install trusted manufacturers like Carrier, Trane, and Lennox that handle Charleston’s demanding climate with reliable performance and strong warranty coverage for peace of mind.
Proper Electrical Work
Licensed electrical upgrades ensure your new AC system operates safely and efficiently, meeting all local codes while preventing dangerous electrical issues down the road.
“Our AC started making a terrible grinding noise late Friday afternoon before a holiday weekend. I was certain we’d be sweltering for days, but Blanton & Sons had a technician at our Charleston home within two hours. He identified a failing fan motor, had the part on his truck, and had us cooling again before dinner. Their emergency service saved our weekend!”
— Jennifer, Charleston Homeowner
Est. 1998
the best HVAC services
At Blanton & Sons, we’ve been providing fast, reliable AC repairs for Charleston families since 1998, getting systems back online quickly even during the busiest times of the season.
When Charleston homes need AC installation
When repair costs exceed half your AC system’s current value, replacement becomes more economical than continuing to fix an aging, inefficient unit that will keep breaking.
Major Component Failure
Compressor, condenser, or evaporator coil failure often costs more to repair than installing a new AC system that comes with full warranty coverage. If you’re experiencing any of these issues in Johns Island, our Johns Island air conditioning replacement services can provide you with a modern, efficient system designed for coastal climate challenges.
Rising Energy Bills
Older AC systems lose efficiency over time, causing electricity costs to climb steadily even with normal usage patterns, especially during Charleston’s long cooling season.
Inconsistent Cooling
Systems that can’t maintain comfortable temperatures throughout your home, struggle during hot days, or run constantly indicate your current AC lacks adequate capacity.
Age Over 10-15 Years
Older AC systems use outdated technology and refrigerants that cost more to service while providing less efficient cooling than modern, energy-efficient replacement options.
Why Proper Sizing Matters More in Charleston
Most of the country worries about keeping the house cool. In Charleston, your AC system has two jobs: temperature control and humidity control. That second job is what separates a good installation from a bad one.
When Anthony and James installed a heat pump for one of our customers, they didn’t just swap the old unit for a new one. They removed the entire old system, cleaned up, installed the new equipment, verified airflow out of every vent, and tested both heating and cooling modes before they left. That customer told us it was “our second house using Blanton and Sons and we continue to be pleased.”
That’s the process every installation gets. No shortcuts.
Why choose professional AC installation in Charleston
Lower Monthly Bills – Properly sized and installed AC systems use 20-40% less electricity than incorrectly installed units, saving hundreds of dollars annually on your power bills.
Consistent Home Comfort – Professional installation eliminates hot and cold spots, humidity problems, and temperature swings that make your Charleston home uncomfortable during summer months.
Extended Equipment Life – Correct installation techniques and proper sizing help your new AC system last 15-20 years instead of failing prematurely due to installation shortcuts.
Warranty Protection – Manufacturer warranties remain valid only with professional installation, protecting your investment and ensuring free repairs if components fail within the coverage period.
Peace of Mind – Licensed, insured technicians follow safety protocols and local building codes, so you never worry about dangerous electrical work or improper refrigerant handling in your home.
Our Installation Process
In-Home Assessment
One of our project managers — often Brian Hardee or Kyle — will visit your home, measure every room, check your existing ductwork, assess insulation levels, evaluate your electrical panel, and run a Manual J load calculation. This isn’t a quick walk-through with a clipboard. It’s a real engineering assessment that takes into account your home’s orientation, window exposure, ceiling height, and how your family actually uses the space.
System Selection
Based on the assessment, we’ll present options at different price points and efficiency levels. We’ll explain the differences in plain language — including what the efficiency ratings actually mean for your monthly electric bill — and let you decide what fits your budget. No pressure. As one customer noted, “Blanton provided me a quote to replace the system and did not try to upsell me.”
Professional Installation
Our install crews — teams like Shane, Shawn, and Parker — handle everything from setting the outdoor equipment on a proper pad to running new refrigerant lines, connecting the electrical, calibrating the thermostat, and verifying performance. One customer described the experience: “Shawn and the entire Blanton’s team were great from beginning to end. Prompt, efficient and friendly.”
Final Inspection and Walkthrough
Before we leave, we run the full system through its paces and walk you through the thermostat, filter location, maintenance schedule, and warranty details. You’ll know exactly how to get the most out of your new system.
Financing Available
We offer financing through multiple lenders to make a new system affordable. Ask about current promotional rates when you schedule your free estimate.
Charleston Neighborhoods We Install In
Our installation teams work across all of Greater Charleston, including the downtown peninsula, West Ashley, James Island, Johns Island, North Charleston, Mount Pleasant, Daniel Island, and of course our home base of Ravenel. Wherever you are in the Lowcountry’s Tri-County area, we can get a project manager to your home for a free assessment.
Service Areas
Charleston is home, but our HVAC and plumbing teams are out working across all of Greater Charleston, every day.
Brands We Service
Frequently Asked Questions
How much does a new AC installation cost in the Charleston area?
The price depends on your home’s size, the system’s efficiency rating, and whether existing ductwork needs work — which is why an accurate number comes from an in-home assessment rather than a webpage. Full installations in this market commonly run in the several-thousand-dollar range and up.
What’s fixed: a $0 dispatch fee to assess, a written quote before work starts, and financing including 0% interest for 12 months for qualified homeowners. Call (843) 256-6454 for a real figure on your home.
What size AC do I actually need for my home?
Bigger isn’t better. An oversized unit short-cycles — cooling fast but never running long enough to pull humidity out, which leaves a Charleston home cold and clammy. An undersized one runs constantly and still can’t keep up. We size based on a load calculation that accounts for square footage, insulation, windows, and ductwork, not a rule of thumb.
How long does an AC installation take?
A straightforward replacement of an existing system is typically a one-day job. Adding or substantially modifying ductwork, or a more complex configuration, can extend it. We’ll give you a realistic timeline with your quote so you can plan around it.
What AC brands do you install?
We install and service major brands including Goodman, American Standard, and Daikin, and we’re a Mitsubishi Diamond Contractor for ductless systems. We’ll match the equipment to your home and budget rather than pushing a single line.
Do you remove and dispose of my old system?
Yes — removal and disposal of the old equipment is part of a professional installation, and it’s included in the written quote. You won’t be left with an old condenser to deal with.
Get a Free AC Installation Estimate
We’ll schedule an in-home assessment at a time that works for you — including Saturdays.