CNT Foundations is a foundation repair company based in the Southeast U.S. They emphasize the importance of having level concrete for homes, such as walkways, driveways, and patios. Sinking or shifting soil under a concrete slab can cause structural issues. CNT Foundations offers free estimates and has locations in Columbia and Greenville, South Carolina; Augusta, Georgia; Charlotte, North Carolina; and North Charleston, South Carolina. They have received positive reviews for their knowledgeable and helpful staff.