an extension kit for conventional toggle type light or other switches provides for complete enclosure of the switch toggle and the switch actuating rod when installed . a backing plate is provided which secures to the wall at one or more points , to preclude damage to the device or switch by inadvertent leverage being applied to the device . a cover channel secures to the backing plate to completely enclose the actuating rod therein , to prevent wear of the rod against the wall or other adjoining structure . the actuating rod is the only movable component of the assembly , thereby providing simplicity of operation and reliability . the device does not require removal of the conventional switch cover plate for installation , and the backing plate is adapted to be installed over a protruding cover plate while still closely fitting against the wall . the extension switch itself is patterned to closely resemble a conventional switch toggle , and to be similar in operation . the entire device is preferably formed of electrically nonconductive materials , such as plastic , which materials may also be luminescent to assist a person in locating the extension in the dark .