A heat pump is an air conditioner that can also run in reverse. In summer it moves heat out of your home; in winter it pulls heat from the outdoor air and moves it inside. One outdoor unit handles both seasons.
Central Virginia is well suited to heat pumps. Our winters are cold, but long stretches of extreme cold are rare, which is exactly where heat pumps are most efficient. For the coldest nights, a backup heat source such as electric heat strips or a gas furnace in a dual-fuel setup covers the gap.
If you're replacing an old air conditioner and an aging furnace at the same time, a heat pump is often worth pricing out. It can lower heating costs compared with electric resistance heat and gives you one modern system instead of two aging ones.
The key is correct sizing and installation. An oversized or poorly charged heat pump short-cycles, struggles with humidity, and wears out early. We size every system for the building it's going into and test it at startup before we leave.