S.C. Code Ann. § 15-3-640
No actions to recover damages based upon or arising out of the defective or unsafe condition of an improvement to real property may be brought more than thirteen years after substantial completion of such an improvement. For purposes of this section, an action based upon or arising out of the defective or unsafe condition of an improvement to real property includes:
(9) an action against owners or manufacturers of components, or against any person furnishing materials, or against any person who develops real property, or who performs or furnishes the design, plans, specifications, surveying, planning, supervision, testing, or observation of construction, or construction of an improvement to real property, or a repair to an improvement to real property.
This section describes an outside limitation of thirteen years after the substantial completion of the improvement, within which normal statutes of limitations continue to run.
Any building permit for the construction of an improvement to real property shall contain in bold type notice to the owner or possessor of the property of his rights under this section to contract for a guarantee of the structure being free from defective or unsafe conditions beyond thirteen years after substantial completion of the improvement. The Department of Consumer Affairs shall publish in conspicuous places the right of any owner or possessor to contract for such extended liability under this section. Nothing in this section shall prohibit any person from entering into any contractual agreement prior to the substantial completion of the improvement which extends any guarantee of a structure or component being free from defective or unsafe conditions beyond thirteen years after substantial completion of the improvement or component.