What South Carolina homes are up against.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31. · U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
A heat pump in this state spends most of the calendar off the heating side entirely, and that quiet period hides problems a longer season would have surfaced gradually. Homes in South Carolina run heat about five months a year, from November through March. When the system finally cycles up in earnest, an undersized unit or a poorly set refrigerant charge announces itself fast, usually on the same day every neighbor's system is working just as hard. What a contractor sizes and installs before winter starts is what you get when it matters most, with no warm-up period to catch a bad call.
Before a quote can be written, a contractor has to look at what is already there: the panel, the duct runs, the linesets, the attic clearance. None of those can be assumed from the address. Half the homes in South Carolina were built in 1992 or earlier (2020-2024 ACS 5-year). A house that has carried one or two systems in its life accumulates modifications, and a contractor sizing a new heat pump has to account for what the existing installation actually left behind, not what the builder originally spec'd. Duct leakage, undersized returns, and service capacity all feed directly into what gets recommended and what the install requires.
Does where you live in South Carolina put harder miles on your HVAC?
2015–2024 · Source: NOAA National Centers for Environmental Information, Storm Events Database.
A county that ranks high in recorded severe weather events is asking more of outdoor equipment than the raw specs on a data sheet assume. Condensers sit outside through whatever the season delivers: driving rain, hail, sustained wind, ice load, and stretches of heat that keep the compressor running long past what a mild climate demands. Proper sizing, siting, and installation detail matter more when the exposure is real. The contractor you are matched with works in your county and accounts for those conditions.
South Carolina HVAC Installation and Repair License Requirements
South Carolina sets its own rules for who can perform HVAC installation and repair work, and the provisions below are quoted directly from state sources rather than paraphrased.
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.
A state licensing requirement for this trade means that the work on your home is something only a properly credentialed contractor can legally perform. Knowing that is useful when someone shows up at your door. The contractors this site routes requests to hold the license these provisions describe, and that is the filter your request passes through before it reaches anyone.
View the source provisions1 provisions
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.