Dreaming of a truly unique outdoor living environment filled with harmonious color, depth and vitality? You’ll find it all right here with Alpha Landscape Contractors. We specialize in complete landscape site planning & design including masonry, retaining walls, walkways, water features, intricate garden designs, dramatic lighting, holiday lighting, irrigation and much more–for both residential and commercial clients. Alpha Landscape Contractors is a professional landscape design, build & maintenance company serving the Baltimore/ Washington DC & Southern PA areas since 1996.