An electrical panel assembly for easing installing conductors in a replacement electrical panel in a wall includes an electrical panel that is mountable in a wall. The electrical panel has a front side and an outer wall, and the outer wall has a top side and a bottom side. Each of the top, bottom and front sides is open to access an interior of the electrical panel. A top panel is removably coupled to the top side of the electrical panel. The top panel has a plurality of apertures extending therethrough and each of the apertures has a conductor extended therethrough. A bottom panel is removably coupled to the bottom side of the outer wall of the electrical panel. The bottom panel has a plurality of apertures extending therethrough and each of the apertures in the bottom panel has a conductor extended therethrough.