O&R Landscaping based in Maryland and cover all areas. O&R Landscaping has been working throughout the Maryland state for many years and has many years of experience working in Architectural & Engineering Services. O&R Landscaping offer a full Architectural & Engineering Services. The Staff have expert Architectural & Engineering Services skills, which enable them to carry out minor to major Architectural & Engineering Services projects. Formed in 2000 , O&R Landscaping specializes in Architectural & Engineering Services.