COLIS Landscape Development, LLC is a full service commercial landscape development specializing in new construction and major renovations in the following areas: Landscape Construction Hardscape - Unit Pavers, Site Concrete, Retaining Walls Irrigation Artificial Turf Fencing Pools / Splash Pads Sport Courts Site Furnishings Site Structures Over the last 20+ years we have built our name around three pillars: Service, Quality and Commitment. We don't just want to be the best at what we do, we want to be the go to company for all of our GC partners.