Winston Salem Top Soil, Winston Salem mulches Black Sand Company's mission is to provide prompt, dependable, and courteous service to all customers. Whether a home builder, residential or commercial construction company, or residential customer, everyone can expect the same courteous service for their individual needs. Black Sand Company prides itself on high-quality products and services. We can handle any large commercial construction job. Our tractor trailer brings in our mortar sand, river sand, white mortar sand, bark nuggets or mulches on a daily basis.