Foundation & Crawl Space Repair in South Carolina. CNT Foundations has been solving residential structural issues for over 15 years. Our company was founded as a general contracting company so we understand your home in its entirety. This is one of the primary reasons we stand high above our competition. Many of our customers have said they are happy that CNT was able to handle all aspects of their project without having to deal with multiple other contractors. We can provide the same level of exceptional of service to you and your family.