Welcome to United States Marble & Granite, a trusted, family-owned business proudly serving Maryland, DC & Virginia since 1921. With over 100 years of experience, we specialize in premium stone surfaces and expert fabrication, combining timeless craftsmanship with today’s design standards. Our commitment to quality, service & precision has made us a cornerstone in the region’s stone industry—built on generations of excellence you can see and feel in every project.