
What Goes Into a Professional Deadbolt and Door Knob Lock Installation
A proper door knob lock installation is more than dropping new hardware into an existing hole. Our technicians start by measuring the backset — the distance from the door edge to the center of the bore hole — because Raleigh homes built before 1980 often have a 2-3/8-inch backset while most modern locks default to 2-3/4 inches. Getting that wrong means a latch that won't seat, a trim ring that gaps, or a deadbolt that binds under load. We also inspect the door thickness, the hinge condition, and the strike plate mortise cut in the jamb, because a Grade 1 deadbolt paired with a shallow, single-screw strike plate offers almost no real security improvement.
For homes and businesses that need the highest level of door security, a mortise lock is often the right answer. Unlike a standard cylindrical knob lock that sits in a single bore hole, a mortise lock is set into a deep rectangular pocket routed into the door edge, housing the latch, deadbolt, and sometimes a passage knob all in one integrated unit. Historic properties near Oakwood or Five Points frequently have original mortise lock pockets that simply need new cylinders and trim — we can reuse that infrastructure with modern, pick-resistant cylinders. For newer construction, we cut the mortise pocket cleanly and fit the lock body so the door swings and latches exactly as it should.

