Air Conditioning in Charleston, SC
Repairs, new systems, spring tune-ups and salt-damage fixes for homes and small businesses. Tell us what the system is doing and we will point you to the right service.
- 4.9★ on Google (16 reviews)
- Open 24 hours, 7 days
- Clear, upfront quotes
Air conditioning in Charleston works harder than it does in most of the country. Charleston International Airport averages about 64 days at or above 90°F each year, based on NOAA's 1991 to 2020 normals, and humidity keeps the system pulling water from the air on the days in between. Aero Air Techs is an HVAC contractor based in Charleston, and this page is the quickest way to find the service that fits what your system is doing.
Air conditioning service in Charleston: where to start
Match the problem to the service before you call.
- It stopped cooling, leaks or makes a new noise. You need AC repair. Turn the system off if there is ice or water, and call.
- It is old and keeps needing parts. Read about AC replacement and compare both paths before you spend on a major part.
- It works, and you want it to stay that way. Book AC maintenance in spring, before the long run of hot days.
- You have no cooling in the space yet. AC installation covers new builds and additions, and a ductless mini split suits rooms that ducts cannot reach.
- You live near salt water. Look for white crust on the fins and read about coastal corrosion repair.
What should you ask an AC company before work starts?
Three questions cover most of it. What exactly failed? What are the options, including doing nothing for now? What will it cost, in writing, before anyone starts? We give a clear, upfront quote.
Equipment rules have shifted too. DOE's 2023 standards set new efficiency minimums for the Southeast, and EPA's Technology Transitions rule moved new systems toward lower-GWP refrigerants. Existing R-410A systems can keep running and be serviced, so neither change forces a swap on a working system.
Our air conditioning services
AC Installation
New systems for builds, additions and duct-free homes, sized by load calculation.
AC Maintenance
Coil rinse, drain care and electrical checks before the long cooling season.
AC Repair
Warm air, leaks, odd noises and short cycling, diagnosed and explained before work starts.
AC Replacement
Repair-or-replace advice, a matched system and a line-itemed quote to compare.
Coastal Corrosion AC Repair
Salt-damaged coils, cabinets and contacts inspected, repaired or ruled out.
Ductless Mini Split Installation
Zoned cooling and heating for additions, garages and homes that cannot take ducts.
“We called Cris and he came right over. He was knowledgeable about our unit and fixed it in a matter of minutes. His professionalism was top notch and we will be calling him for any AC issues moving forward. Highly recommended. I wish I could give more than 5 stars!”
“These guys are very reliable and trustworthy. Had issues with my AC not cooling and called Aero. They came out super quick and fixed my problem AND they were really affordable. I recommend them for all your HVAC needs!”
“Chris came out to check out my ac unit And found the problem in 5 min and fixed It now I'm back cool, price was affordable He's my guy from now on, Thanks Chris”
4.9 out of 5 from 16 Google reviews (checked October 2026). Read more reviews · Leave a review
We are based in Charleston and serve the surrounding areas across Charleston County, Berkeley County and Dorchester County. Phone us with your address and the symptom, and we will sort out the next step together.
Questions about this service
How do I choose between repair and replacement?
Start with what failed. One worn part on a sound system is usually a repair, while a failed compressor or a salt-eaten coil on older equipment deserves a side-by-side look. We show you what we found and quote before work begins, so you can compare both paths on paper.
Do you work on central air and ductless systems?
Yes. We work on central air conditioners, heat pumps and ductless mini splits for homes and small businesses across the Charleston area. Tell us what kind of system you have, and the model number if you can find it, so we can plan the visit.
How do I check an AC contractor?
Ask any contractor for a license number and check it on the SC LLR lookup, then read recent reviews and ask for a written scope. Our guide on choosing an HVAC contractor in Charleston lists the questions worth asking before you sign anything.
Why does my house feel humid with the AC running?
An oversized system, a dirty coil or leaky ducts can leave the air sticky even when the thermostat looks right. Charleston's summer humidity makes small problems easy to feel. Our post on why Charleston homes feel humid covers the usual causes and fixes.
