What Forced Entry Actually Does to Your Locks and Doors
Most people focus on the obvious damage — a kicked-in door or a broken window — but forced entry almost always causes secondary damage that is far more dangerous if ignored. A door frame that appears intact may have hairline cracks in the strike plate area, making the deadbolt functionally useless even if the lock cylinder itself still turns. A mortise lock, which sits recessed inside the door edge and is common in Chicago's older greystone buildings and vintage apartment doors, is especially vulnerable: the internal mechanism can fracture under lateral force even when the faceplate looks fine. Our technicians are trained to probe beyond the visible damage, testing mortise lock body integrity, checking the depth and alignment of the strike plate box, and inspecting the door slab itself for warping that would prevent a new lock from seating correctly.
Pin tumbler cylinders — the kind found in most residential deadbolts and door knob lock sets — can be partially picked, drilled, or simply wrenched out of their housing during a break-in attempt. When a cylinder is attacked this way, even if the door held, the internal pins are often misaligned or the housing is cracked, meaning the lock is no longer offering the resistance it was rated for. We assess lever lock vs pin lock configurations differently because a lever-action mortise lock that has been forced distributes stress across a wider body than a pin lock door knob, and each type requires a different repair strategy.