The tool for removing a smoke detector cover is a set of housings that are biased away from one another, and which when pressed together shall engage release posts against the locking tabs of an existing base plate of an existing smoke detector in order to release a cover of the smoke detector. The upper housing and the lower housing collectively mount between a wall surface or ceiling surface and the base plate of the smoke detector. Upon pressing the upper housing towards the lower housing, the release posts shall act in concert to push all lock tabs of the base plate outwardly thereby releasing the cover from the smoke detector.