Over the years, the firm has continued to expand both its technical capabilities and geographic client base. SDE and its construction arm, SDE Construction Inc, prides itself on being able to provide our clients with a wide variety of professional services tailored to meet each client's unique objectives and needs.

The firm specializes in providing civil, site, and environmental engineering and planning services to clients throughout eastern Pennsylvania. Our range of projects have included: waste-water collection and treatment; subdivision and land development for residential, commercial and industrial uses; comprehensive planning studies; water and waste-water facility planning studies; environmental impact studies, municipal engineering/planning consultation; recreation planning; operation services for water and waste-water plants; codes preparation and enforcement; and construction management.