Quarriers and Fabricators of natural stone for building and landscaping purposes;including two historically used building stones of the northeast;Hamilton Bluestone and Onondaga Limestone. Manufacturers of stone paving, steps, veneer, countertops, flooring, fireplaces, wallstone, curb and edging. Special fabrication equipment is available to make cubic stone items such as furniture, sculpture bases and custom items. Fabricators of Onondaga Limestone firebrick. Importers of other sandstones and limestones. Family owned business including O'Brien Stoneworks, Inc.; who specialize in design, installation and specifications pertaining to stonework.