Topaz Design Group designs and builds Long Island's BEST Outdoor Living Spaces! We design & build innovative and functional outdoor spaces that are unique and professionally installed. Outstanding service and attention to detail are what sets us apart. Topaz is ICPI Certified and is a Pro Installer and Authorized Contractor for Nicolock, Cambridge, Techo-Bloc, Belgard, & Unilock. Our services include all phases of masonry, landscape design, patios, driveways, walkways, stoops, outdoor fire features, outdoor kitchens, water features, sitting walls, pergolas, pavilions, decks, pool-scapes, and so much more.