HVAC Installation in Florence, SC
A new system here will heat from November through March and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Florence County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of work a year, in weather that hits hard
Florence County gives a new system only two slow months. Heat runs November through March, with winter nights averaging 36°F. Cooling runs May through September, with afternoons averaging 90°F. Ten months out of the year, one system or the other is working.
Most homes here heat with electricity, so the heat pump or furnace you install carries that load on its own, night after night, all winter. The storm record matters too. Florence County has logged 97 damaging wind events over the past ten years, and 45% of South Carolina households went at least 24 hours without power in 2024. Whatever you install should come back on by itself once the power does.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 36°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Once it's old enough that repairs start happening more than once a season, replacement usually makes more sense than fixing it again. Age matters here because your system runs for 10 months of the year between heat and air conditioning, so there's not much of a break for it to rest. If a repair would cost close to what a new unit would, or your energy bills have been climbing while the system struggles to keep up, that's your sign. A contractor can look at the specific unit and tell you whether it's worth repairing again.
- Should I replace my furnace and air conditioner at the same time?
- If both are close in age, replacing them together is often the better move. They tend to wear out around the same time when they were installed together, and pairing a new furnace with an old air conditioner, or the other way around, can mean one drags down how well the other performs. It also means you're not paying for a second installation visit a year or two later. That said, if one unit is much newer than the other, there's no reason to replace it early just to match. A contractor can check the age and condition of both and tell you what makes sense for your setup.
- What happens during an HVAC installation?
- A contractor first removes the old equipment, then sets the new furnace, air handler, or condenser in place and connects it to your existing ductwork, refrigerant lines, and electrical or gas lines. They'll check that the ducts are sized right for the new equipment, since a mismatch there can hurt how well the system heats and cools. Once everything is connected, they test the system, check refrigerant levels or gas pressure, and confirm it's running the way it should before they leave. The exact steps depend on what kind of system is going in and what was there before, so a contractor can walk you through what your installation will involve.