Founded in 1917, Trumbull-Nelson Construction Company, Inc., has been serving northern New England clients for the past 93 years. Our company has grown from its beginnings as a builder of fine homes in the Hanover area to become the Upper Valley's largest general contractor, specializing in all types of institutional, commercial, industrial, and residential construction. Through the time-honored approach of delivering personal and professional service with integrity, we have become one of northern New England's most respected construction firms.