Castrejon is an underground utility and landscape installation and maintenance company. Its underground utility division provides directional and pneumatic boring, trenching and cable conduit plowing services. The company s landscaping division provides seeding, fencing, gardening, tree planting, landscaping redesign, retaining wall construction, debris removal, and snow plowing and removal services. It also provides installation of decorative rocks, retaining walls, patios, brick walks, driveways and watering systems. Additionally, the company offers installation of electricity, telephone and Internet utility connections. The company offers its services to commercial and residential clients throughout Minnesota. Castrejon, founded in 1997, has its office in St. Paul, Minn.