Emergency HVAC in Charleston, SC
Lost heat or cooling at a bad hour? Call at any hour. Gas smell or a carbon monoxide alarm means leave the building and call 911 first.
- 4.9★ on Google (16 reviews)
- Open 24 hours, 7 days
- Clear, upfront quotes
Emergency HVAC in Charleston comes down to one rule: people first, equipment second. If you smell gas or a carbon monoxide alarm sounds, leave and call 911 or your gas utility's emergency line from outside. For everything else, call Aero Air Techs at any hour. Google lists us as open 24 hours, 7 days a week, and we will tell you when a technician can reach you.
Emergency HVAC in Charleston: what should not wait
These situations should not wait for morning.
- Gas smell or CO alarm. Call 911 or the utility first, and us afterward.
- Burning smell, smoke or sparks. Shut the system off. Call 911 for smoke or flame.
- No cooling with someone at risk. CDC lists older adults, infants and people with chronic conditions among those at higher risk from heat.
- No heat with a freeze coming. Raised homes can have exposed water lines.
- Water coming through a ceiling. Shut the system off and catch what you can.
A warm or cold house with nobody at risk is urgent but rarely dangerous, and you can usually wait for a better hour.
Choose your emergency HVAC repair page
Cooling and heating failures call for different first steps, so start with the one you have. Each page below covers what to do right now, what the technician does and what to ask about pricing. For the home safety side, read what to do when you smell gas or what to do when your AC stops in a heat wave.
Emergency AC Repair
Call at any hour when the cooling quits. Open 24 hours per Google.
Emergency Furnace Repair
No heat on a cold night? Call any hour. Gas smell means 911 first.
Weekend HVAC repair: what to have ready
A short call goes better with a few details: your address, what the system is doing, who is in the home, and the model number if you can reach it safely. Ask about after-hours pricing, and ask when a technician can reach you. You should know both before anyone heads out.
“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!”
“My experience with Aero Air Techs has been excellent! Cris was communicative, transparent, knowledgeable, and punctual. I couldn't recommend them enough!”
4.9 out of 5 from 16 Google reviews (checked October 2026). Read more reviews · Leave a review
We are based in Charleston and take calls from Hanahan, Mount Pleasant, Summerville and the surrounding areas. Longer trips are arranged by phone.
Questions about this service
Are you really open 24 hours?
Google lists us as open 24 hours, 7 days a week, so you can call at any hour. That does not mean a technician is a set time away. Timing depends on the calls running and your address around Charleston, so call and we will tell you when someone can reach you.
What does after hours HVAC service cost?
Ask about after-hours pricing when you call, since we do not post prices. The total depends on the failed part, the hour and how the unit is reached. You get a clear, upfront quote before work begins, and you can choose to go ahead or wait for regular hours.
What if it is not really an emergency?
Call anyway and describe it. We can often tell you whether it can wait until morning, and a filter or breaker check may solve it. If nobody is at risk and the house is bearable in Charleston weather, a regular visit may suit you better, and that is fine with us.
