An installation system for mounting stationary objects, such as towel holders, shelves, lights, or similar furnishing items, on an installation surface, such as a wall or a ceiling, in particular in rooms equipped with tiles, marble slabs, or similar wall coverings, includes one or more fastening elements, a lighting device, and/or an adhering and connecting agent, wherein the adhering and connecting agent is a light-curing adhesive. The one or more fastening elements can be fastened by introducing an adhering and connecting agent into an adhesive space formed by the installation surface and components of the fastening element. The fastening element has at least one at least partially transparent component for irradiating the adhering and connecting agent.