Abstract: The home invasion deterrent system comprising a flush-mounted floor bracket with an aperture for inserting a vertical column assembly. The floor bracket may be mounted over and aligned with a core drilled hole in a (concrete) floor. The vertical column assembly has affixed at the upper end a door stopping plate support arm with a door stopping plate and rubber bumper block mounted to it parallel to an entry door. The door stopping plate is adjustable in proximity to the entry door to a user-preferred distance and secured in position with a locking pin (or threaded means) to allow the user to ascertain a visitor's identity safely without the visitor gaining entry without permission. Other embodiments, kits and method(s) of use are also embodied.