Horry County is low and flat, and a lot of neighborhoods are built on sandy soil over a layer that drains slowly. After a heavy summer storm, the water has nowhere to go, so it sits in the yard, against the foundation, or under the crawlspace.
A French drain is a trench lined with filter fabric, filled with washed stone, and fitted with perforated pipe. Groundwater and surface water find the stone, enter the pipe, and flow away. The critical detail is the fall: the pipe has to slope consistently toward an outlet, like a ditch, a storm drain, or a lower part of the property, or it simply stores the water underground.
Sometimes the problem is simpler. Downspouts that dump right next to the house are the most common cause of wet foundations we see, and burying those lines to carry roof water away can solve it for a fraction of the cost. Other yards need a catch basin at a low spot, or a culvert under the driveway so a ditch can keep flowing.
The right fix starts with watching where the water goes. We walk the property, look at the grades and the possible outlets, and recommend the smallest system that will actually work, then build it with the right fabric, stone, and slope.