843 Heating and Air LLC

843 Heating and Air LLC operates as a locally owned HVAC contractor in Charleston, South Carolina, delivering heating and cooling services to residential and light commercial properties across the region. The company maintains full certification and insurance coverage, providing peace of mind on every service call. With a perfect 5.0-star rating derived from 10 client reviews, the business has established itself as a trusted name in Charleston County's competitive HVAC market. Their service area encompasses Charleston proper, Folly Beach, James Island, Summerville, and surrounding communities, ensuring broad coverage for homeowners throughout the Lowcountry.

What distinguishes 843 Heating and Air from competing contractors is their commitment to transparent diagnostics and lasting solutions rather than temporary fixes. The company emphasizes identifying the root cause of HVAC problems, which reviewers specifically praise as a defining characteristic of their service philosophy. They maintain 24-hour emergency availability year-round, including holidays and weekends, responding rapidly to system failures that leave homeowners without climate control. Their service model includes optional maintenance contracts designed to extend equipment lifespan and reduce long-term operating costs for customers.

Croix, the owner and primary technician, has earned consistent recognition across client reviews for his diagnostic expertise and customer communication. One Summerville homeowner described how Croix arrived the morning after an evening call, completing a condenser replacement in 45 minutes despite his existing workload. Another client, operating an automotive shop on James Island, needed HVAC installation completed around a tight business schedule, and Croix accommodated their timeline while ensuring the installation met their specific operational requirements. A third reviewer noted Croix resolved heating and cooling imbalances in their home's ductwork that previous contractors had failed to address properly, establishing him as the only technician they trust with their HVAC system.