Thornapple Landscape Maintenance, founded in 1983, offers a wide range of maintenance services to property mangers, homeowner s associations and business owners throughout the Fox Valley and Chicagoland areas. Located in Geneva, Ill., the company is a sister concern of Thornapple Landscapes, which provides professional landscape design and installation services. Its staff includes certified landscape technicians who work with natural stones, bricks and plant materials. The company specializes in creating driveways, patios, retaining walls, terraces, historic restorations and granite surfaces. Thornapple Landscapes is associated with the American Nursery & Landscape Association, the Illinois Landscape Contractors Association and the Illinois Nurserymens Association.