South Carolina licenses residential heating and air contractors through LLR as a Residential Specialty Heating and Air license, listed as RBH. Commercial mechanical work over the residential builder limits goes to the Contractor's Licensing Board instead. Charleston's Permit Center wants a city business license and the state credential before it issues a mechanical permit. Ask which of those licenses covers this system, then ask who pulls the permit. This page shows which Charleston HVAC companies AI assistants named most often across answers RecommendRadar ran and stored, how often each appeared, and the sources those answers cited. Visibility to AI isn't a sizing calculation. Get the equipment and the warranty in writing.
3 snapshot runs from the last 45 days named a business. This page is indexed after 3 such runs. Names that differ by case, punctuation, a leading The, a practice suffix, or a shortened firm name are combined.
Before you contact anyone on this list
- Ask which license covers this job and match it to the price.
- Ask who will pull the building permit.
- Get a written quote before work starts.
FAQ
What is an RBH license in South Carolina?
It is the Residential Specialty Heating and Air license issued by LLR's Residential Builders Commission. It is not the same credential as a commercial mechanical contractor license.
Who permits an HVAC replacement in Charleston?
The City of Charleston Permit Center. Mechanical work in scope is a sub-permit, and the applicant needs a city business license plus the state license.
Which Charleston HVAC companies did AI name most?
Holy City Heating & Air (3 of 3), AGL Heating & Air (2 of 3), Carolina Climate Control (2 of 3), M&B Heating and Air (2 of 3), Anchor Heating & Air (1 of 3), Carney & Son 72 Degrees (1 of 3), Myatt Air Conditioning (1 of 3)
How this page works
Every name, count, and source on this page comes from answers RecommendRadar ran and stored for the best hvac company in Charleston, SC. Nothing is added or edited by hand. These stored answers came from Perplexity. Sample: 3 stored answers from the last 45 days, refreshed October 28, 2026. AI answers vary with wording, time, location, and engine, so this is a dated sample of what those engines said, not an endorsement or a ranking of quality.