A device used to guide cables or wires through walls. The device includes a maintaining device connected to two or more cable maintaining elements. The maintaining elements surround, in a frame-like manner, a through-opening, and the cable maintaining elements are arranged in the region of the through opening. According to this invention, at least one of the cable maintaining devices or at least two groups of cable maintaining devices can be connected to the maintaining device independently from one or more of the remaining cable maintaining devices by connecting elements which are associated with the cable maintaining devices, in order to improve the ease of mounting of this type of device.