HVAC Installation in Greenville, SC
A new system here will heat from October through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Greenville County will get in touch.
Tell us about the job
It takes about a minute.
Twelve months of work, in both directions
Greenville County asks for heat from October through April and cooling from May through September. That is every month of the year with no break in between, so a new system needs to handle a 34°F winter night and an 87°F summer afternoon equally well. Neither side of the job is occasional.
More than half of homes here heat with electricity, which puts real load on the system all winter. And when storms come through, they come through hard. South Carolina has logged 122 damaging wind events over the last ten years, and 45% of households in the state lost power for at least a day in 2024. A new install is a chance to plan around that, not just around the thermostat.
- 7 months
- October through April, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 87°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
- When should I replace my HVAC system?
- Replace it when repairs start coming often, or when the system is old enough that another breakdown is likely. Most furnaces and air conditioners last a couple decades, and after that, parts get harder to find and efficiency drops. Homes here need heat or cooling every month of the year, so a breakdown means going without one or the other right away. If a contractor has quoted you a major repair on an older unit, that is usually the point to ask about replacement instead.
- Should I replace my furnace and air conditioner at the same time?
- If they are close in age, replacing both together often makes sense, but it depends on the condition of each unit. A furnace and air conditioner installed at the same time tend to wear out around the same time too, so if one is failing, the other may not be far behind. They also often share a coil or air handler, so replacing one can affect how well the other performs. A contractor can look at the age and condition of both and tell you whether it makes sense to do them together or wait.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace or air conditioner in place, and connects it to the ductwork, gas or electric lines, and condensate drain. If it is an air conditioner or heat pump, the refrigerant lines get connected and charged. The furnace gets tied into the gas line or electrical circuit depending on the type. Once everything is connected, the contractor tests the system, checks airflow, and confirms it is heating or cooling correctly before finishing up.