Techo-Bloc offers a wide variety of high-quality stone and concrete products, from interlocking pavers to hardy steps to more delicate edging stone. Rich and full of color, Techo-Bloc hardscaping materials can help produce some of the most beautiful Long Island landscape design projects. Techo-Bloc has a very extensive collection of products, and Astro Masonry can help order and provide delivery for any of them throughout the Long Island and NYC metro area.