Heating & Air Conditioning Expert

Mon-Sat: 8:00am - 5:00pm

24h Emergency Service


843 Heating and Air is Certified and Insured to make sure you receive only the best care.

Call Today 843-557-5673

Serving Charleston and the Surrounding Area

Quality that is Guaranted

Heating and Air Conditioning Comfort Specialist

Emergency Services



Our Story

Meet 843 Heating and Air

We pride ourself on being a one stop shop that is able to meet all of our client’s needs. Our goal is to provide the highest quality design and installation services, on schedule, and on budget along with outstanding customer service.We understand that time and cost are crucial so we strive to go above and beyond our client’s expectations.
For our customers peace of mind, we offer valuable money saving service and maintenance contracts. Please call for additional details.

24 Hour Emergency Service

We can provide expert 24 hour Emergency Service available to you 365 days a year for your all your heating, ventilation and air conditioning (HVAC) needs.

Call us now at 843-557-5673 

Certified and Professionally Trained

We have years of experience in the heating, ventilation and air conditioning industry (HVAC). We believe in quality customer service.

We are here when you need us to service both your residential and light commercial properties!


Our Services

A/C installation

We offer high quality installation of residential and light commercial air conditioning with the use of professional equipment and fine materials, at a lower cost.

Maintenance and repair

We provide a full range of repairing and maintenance of air conditioning systems, ventilation systems, and mini split systems.

Pre-season preparation

Air conditioning systems are regulated appliances, requiring expert maintenance to properly function at the best rate of energy consumption.

Annual inspections

An annual inspection allows a technician to identify dirty coils and burned out contactors before they cause long term damage to your system.

Heating services

During the lifetime operation of the heating system there may be situations that require tune ups, safety testing to ensure furnace is operating correctly.

Mini Splits

Mini split systems are professionally installed and provide a combination of custom climate control and high efficiency technology.

Lydia Farmer

Folly Beach, SC

Croix was very knowledgeable. He installed a brand new HVAC unit at my house. Even though I have no idea how any stuff like that works, he answered my questions and clearly explained the process. He was honest and reliable. He’s the only person I trust to deal with my HVAC unit. HIGHLY RECOMMEND.

Pat McIntire

James Island, SC

Croix has been our AC guy since the day we moved here and has been a lifesaver. When our AC went out, he was able to come right away and troubleshoot it, and didn’t stop working until we had AC. He’s extremely knowledgeable and professional, we highly recommend him!