Stillwater Construction Group, LLC is a full-service waterproofing, roofing, masonry and concrete restoration company. A woman-owned construction company, Stillwater has provided these services in the greater Washington, DC community since 2007. Employing over 50 full-time craftsmen specializing in masonry, caulking, tiling, waterproofing, roofing, carpentry and concrete repair, we can manage projects of any scope and size.