AC replacement Charleston trusts when comfort can’t wait
When your AC finally gives up in Charleston’s summer heat, you need a replacement that’s done fast and done right. Blanton & Sons has handled AC replacement for Charleston families since 1998 — honest quotes, correct sizing, and systems built to last. We’re rated 4.8 out of 5 on Google.
Licensed & Insured
Five-Star Service
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. Those sweltering days with 90+ temperatures and high humidity demand a functioning cooling system, and delays in repairs can make your home unbearable
Expert AC replacement for Charleston homes
Same-day replacement when it’s urgent
When an old system dies completely, we stock popular residential units and can often replace yours the same day to get cooling back fast.
Right-sized systems
Proper load calculations match the new unit to your home, avoiding the oversizing that left so many older Charleston installs short-cycling and humid.
Ductwork assessment
We evaluate your existing ducts and seal or repair them during the swap, so your new system isn’t leaking efficiency on day one.
Modern, efficient refrigerant
New systems use current refrigerants that cool more efficiently and sidestep the costly phase-outs hitting older R-22 equipment around Charleston.
Complete integration
Your replacement includes a new thermostat, updated electrical connections, and proper drainage, all set up to work together.
“Taylor and Johnny did an outstanding job. They took the time to make sure the new AC unit was properly installed and running smoothly, and made sure the ductwork was replaced and secured properly. Would definitely recommend and request in the future.”
— Blanton’s customer (via blantonsair.com/reviews)
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.
Signs it’s time to replace, not repair
Complete System Failure
When the compressor or another major component fails on an older unit, replacement often costs less than the repair.
Repairs every season
If you’re calling for AC repair multiple times a cooling season, a new system ends the running tab and the stress.
It runs constantly but can’t keep up
Weak cooling, big temperature swings room to room, or a system that never cycles off points to a unit that’s no longer up to the job.
R-22 Refrigerant
Older R-22 systems face rising costs and shrinking parts availability, which makes a modern replacement the more economical path.
Age past 12–15 years
Systems near or beyond their expected lifespan get less reliable and less efficient, especially under Charleston’s cooling demands.
Discounts & offers
$93
Drain Cleaning
Coupon Code: DRAIN93. Contact us for details. Offer cannot be combined with any other promos.
$5,265
Halo Ultimate Whole Home Water Filtration System
Offer cannot be combined with any other promos.
$500 off
Water Heater Installation
Contact us for details. Offer cannot be combined with any other promos.
What Our Customers Say
Overall amazing experience with these guys. We did major duct work and new AC unit which they installed the next day. Guys were here for 12.5 hours working very hard to get the job finished but due to part issue bc of manufacturer they had to come back. They came back the next day with the right part and finished the job. Kyle D especially worked extremely hard – working through rain and high heat to finish the work. Give that man a raise!
Drew M.
Will Jackson and Jacob Nettles from Blanton & Sons just finished installing a new heating and ac system at my home. They were prompt, diligent, efficient, and took the time to explain everything to me. They even came back after completing the project to make sure everything was working properly. In addition to demonstrating exceptional competence at their craft, Will and Jacob were extremely polite and friendly. They showed great respect for my property and cleaned up the work area very well. I will be recommending them to everyone.
S. H.
We had a new AC system installed by Wallace and team. It was a big job and was well coordinated. The complex work AS20 seer was worked on for over ten hours to full operation. The clean up was thorough and all techs were courteous and helpful. Great job everyone – thank you!!
Jackie L.
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 AC replacement cost in Charleston?
It depends on the size and efficiency of the system and the state of your existing ductwork, which is why we give a written, all-in quote after an in-home evaluation — equipment, labor, disposal, and permits, with no surprise charges. Financing is available. Call (843) 256-6454.
Can you replace my AC the same day?
Often, yes. When a system fails completely, we stock popular residential units and can frequently provide same-day replacement options to get your home cooling again fast.
What size AC system do I need?
The right size comes from a proper load calculation — not a rule of thumb. We measure your home’s cooling load, layout, insulation, and ductwork, because an oversized unit short-cycles and leaves Charleston homes humid, while an undersized one never keeps up.
Will a new AC really lower my energy bills?
A modern, correctly sized system runs far more efficiently than an aging one, and over a long Charleston cooling season that adds up. Pairing it with sealed ducts and good indoor air quality stretches the savings further.
Related Pages
Don’t suffer through another day with an underperforming AC system
Our family has been solving Charleston’s air conditioning problems since 1998, and we’re ready to do the same for you.