The trim system is comprised of a J-trim component to be secured onto a surface such as a wall of a home, and a ledge component to be secured within said J-trim component. The ledge component is comprised of a slot along a longitudinal axis of the ledge member in order to mate with a hook portion of the J-trim component, and is also comprised of keyholes on the lower surface of said ledge member in order to secure it to the wall as well. The ledge member has two leader grooves located on opposite extremities of the slot in order to reduce the wear and tear of the ledge member's cast mold and therefore extend the life of the mold.