He is part of a 5-year-old family owned company. His mother is the president, his sister serves as the estimator, his father manages the structural portion of their contracting business, and McCarthy handles the decorative concrete portion, which is mostly commercial work. He adds that he also runs structural work for his father. They have 42 employees, six of whom do the decorative work. He says that most of his work is stain projects, but they install other forms of decorative work as well, including countertops.
His demo featured a mural using water-based stains. He designed his work freehand, marking it out with pencil on the slab, using masking tape as a stencil material to mask areas and tightly control the lines between colors.