Morelli Heating & Air Conditioning Inc.
“I have to say even tho I don't work with them anymore I have to say if ur looking for a job I have to say they are the one that are the best and I do miss working with them I hope all is well”
Best HVAC Contractors in Charleston, SC
24 companies listed · 14 in Charleston · 8 open 24/7 · 15 open weekends · all 24 rated 4.5+
Data verified October 18, 2026
Sing Heating and Air
“I left them a message over the weekend in a tizzy because we were going to throw a party and we had no AC and they came out first thing Monday morning.”
Pardee Service Experts
“Jon and Chris were professional informative and kind!!!”
Myatt Air Conditioning LLC
“My A/C stopped working 24 hours ago and it was 81 in my condo, when I called this morning to set up a repair, they said they could be here as soon as early afternoon.”
5 Star Charleston Heating and Air
“5 Star came out in a timely manner and found that our unit had been wired wrong by the previous company and that it was completely fine - no repairs needed.”
Smoak's Comfort Control
“Both young men are to be highly commended for superior service, Thank you for continuing to provide outstanding service by utilizing such terrific personnel”
The 24 companies listed for Charleston, SC work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: Charleston, SC
Of the 24 companies we list here, 14 are in Charleston itself and 10 come from North Charleston (9 mi). The companies on this page are rated from 4.5 to 5.0 across 19,798 reviews; 20 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise professionalism (90%), responsiveness (85%) and quality (81%). The topics that come up most in reviews of the companies on this page are "price", "efficient" and "informative". 8 are open around the clock; 15 are open on Saturdays and 14 on Sundays. The services the companies on this page list most often on their websites are heating (4), indoor air quality (4), plumbing (3), air conditioning (2) and commercial hvac (2). 10 show a license on their websites; 3 list staff certifications (NATE) and 4 have a BBB rating of A or A+. Domain records put 16 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 10 offer emergency call-outs; 17 offer financing or payment plans; 8 give free estimates; 10 are family- or locally-owned and 14 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do any heating firms listed for Charleston work on Saturdays or Sundays?
Saturday or Sunday hours show up for 15 of the 24 companies here. Saturdays fill with the calls that came in on Friday, so ask whether you are getting a repair slot or a sales visit. Sunday work is usually treated as an emergency call.
M&B Heating and Air
“They show up on time (or call), they protect my home by wearing shoe guards, the service techs are not only knowledgeable but friendly and don't mind educating me if there is something I don't understand.”
Anchor Heating and Air
“Jonathan the technician was very knowledgeable, provided me with options for maintenance that was needed, it truly felt he had my best interest in mind.”
C&C Myers Heating
“He thoroughly explained the entire installation process and the precautionary measures taken by C&C Myers to ensure new units function properly for years to come.”
Terrace Heating & Air
“Terrace Heating & Air have been servicing my HVAC system for the last 4 years and I've always found their technicians to be very knowledgeable, professional.”
Air Pros Heating and Cooling LLC
“Technician arrived on time was very nice explain to me what was wrong then he called my Home Warranty people for approval after that it was fixed in less than an hour.”
Holy City Heating & Air
“Holy City has handled all our HVAC and plumbing needs for 5 years at our home on Folly Beach, including installing new multilevel AC units and a new water heaters.”
Limric Plumbing Heating & AIR
“I felt very well informed for the different decisions available to fix my tub (with membership, without, providing our own part and having them provide the part).”
Preferred Home Services
“I've used Preferred Home Services for several different types of home repairs in the last 2 years and have been pleased with their services and all personnel involved.”
Alexander Heating & Cooling
“Our AC quit working earlier today & after calling numerous places to get an estimate on how much it would be (Alexander's was the best price) Chris was the only one able to come out same day to fix it for us.”
AC Heating and Air Conditioning Services
“I am 71, have had a few houses, 2 office buildings, and managed engineering and maintenance departments at manufacturing facilities in different locations.”
Charleston Heating and Air
“Justin did a fantastic job of explaining what was wrong, setting expectations around how long it would take to fix, and getting the job done quickly and efficiently.”
Blake & Sons Heating & Air
“I have recommended Blake and Sons in the past to family and friends and will continue to highly recommend Blake and Sons to anyone that needs Heat Pump or air conditioner maintenance or installation”
Max Mechanical Heating and Air
“My HVAC unit was dying in August and they were quickly able to get me on the schedule and get a whole new unit installed in a few hours and at a great competitive price.”
Charleston Real Estate Repairs
“Wes is the primary contractor who works for my condo association to help with general maintenance needs/checkups but he has personally helped me with HVAC and general home needs when I'm in a crisis or in need of some help.”
Customer's Preference
“He was at our home at 7:00 on a Friday evening (30 minutes before he said he could get here) and did an outstanding job explaining the issue and services needed.”
Carolina Climate Control
“He was able to quickly identify the problem and he did a wonderful job explaining exactly what needs to be done to fix the issues we were experiencing.”
North Charleston Comfort Heating & Air Conditioning
“Knowledgeable, and helpful quickly answering questions about all the brands they support as well as willing to determine solutions with brands that are not in their main supported line.”
O&R Heating & Air
“Orlando responded to my home within 1 hour on Memorial Day.”
Why these companies made our list
What customers say about companies in Charleston
- “A courteous and professional technician arrived at our home within an hour, diagnosed the problem, and in less than an hour, replaced the faulty starting system on the condenser system for the upstairs, still under warranty.” — customer of C&C Myers Heating
- “Max and his team were very professional and courteous (great with dogs as well) and cleaned up their workspace once they finished the job.” — customer of Max Mechanical Heating and Air
- “After half a day they were finished! They cleaned up all the mess, showed me how to use the thermostat, and explained the warranty to me.” — customer of Myatt Air Conditioning LLC
- “Micah with Climate Control was very prompt and thorough with their inspection of our heat pump, duct work and wiring.” — customer of Carolina Climate Control
Excerpts from public reviews of the companies listed on this page.
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