HVAC Installation in Georgetown, SC
A new system here will heat from November through March and cool from May through October every year. Tell us about the house, and a licensed contractor who covers Georgetown County will get in touch.
Tell us about the job
It takes about a minute.
A system that works almost all year here
Georgetown asks for cooling from May through October and heat from November through March. That's 11 months where the system is doing one job or the other, with summer afternoons averaging 89°F and winter nights averaging 38°F. Whatever gets installed has to handle both ends of that range, not just the one that feels more urgent right now.
Most homes here heat with electricity, so a new system is likely running on the same power supply it uses to cool. Georgetown County has recorded 45 damaging wind events over the past ten years, and in 2024 nearly half of South Carolina households lost power for at least a day. A new install is a chance to ask how the system handles an outage, since that is not a rare event here.
- 5 months
- November through March, your system heats
- 6 months
- May through October, it cools
- 38°F
- the average winter night it heats against
- 89°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Once your furnace or air conditioner is old and starts needing repairs, replacing it usually makes more sense than fixing it again. Homes here need heat or cooling 11 months a year, so the equipment runs more than it would somewhere milder, and that extra run time adds up over the years. If you are weighing a repair against a replacement, a contractor can look at the age, the repair history, and the condition of the unit and tell you where it stands.
- Should I replace my furnace and air conditioner at the same time?
- If both are near the same age, replacing them together is usually the better move. They were likely installed at the same time and wear out on a similar schedule, so fixing one now often means facing the other within a year or two. Furnace and AC systems also share the same air handler and ductwork, so pairing an old furnace with a new coil can run less efficiently than a matched set. A contractor can check the age and condition of each unit and tell you whether pairing the replacement makes sense for your system.
- What happens during an HVAC installation?
- A contractor removes the old furnace, air conditioner, or both, and sets the new equipment in place, connecting it to the existing ductwork, gas line or electrical circuit, and the refrigerant lines. They check the ductwork for leaks or sizing problems, since a new system connected to bad ducts will not perform the way it should. Once everything is connected, they test the system, check refrigerant charge and airflow, and set the thermostat controls before they leave. The exact steps depend on what equipment is going in and what is already in the house, so a contractor can walk you through what your installation will involve.

