For Door Knob and Deadbolt Replacement in KC

Web Design for Door Knob and Deadbolt Replacement Companies in Kansas City

Door knob and deadbolt replacement customers are KC homeowners moving into a previously owned home and re-keying or replacing all exterior locksets for security, homeowners whose deadbolt has become stiff and difficult to throw after years of door movement from KC's seasonal temperature swings, or homeowners upgrading a hollow-core interior door knob to a lever handle set after a family member with limited grip strength moves in. The central education is backset and bore hole measurement, ANSI grade selection by door use, and strike plate reinforcement — three things that determine whether a replacement lockset is a direct swap or requires additional boring and frame work. Backset and bore: the backset is the distance from the door edge to the center of the bore hole — the standard residential backset is 2-3/8 inches (standard) or 2-3/4 inches (backset common on older KC exterior doors from before 1990); a replacement lockset must match the existing backset or the latch will not align with the strike plate; most locksets sold today are adjustable for both backsets; the bore hole diameter is standard at 2-1/8 inches for all residential knobs, levers, and deadbolts — a new lockset will fit any standard bore; in older KC homes with mortise locksets (a rectangular pocket in the door edge rather than a round bore), a cylindrical replacement requires a bore hole to be cut where none exists — this is a full bore-and-install job, not a direct swap. ANSI grade: the ANSI/BHMA grading system rates deadbolts Grade 1 (commercial, highest security), Grade 2 (residential heavy-duty), and Grade 3 (light residential); a Grade 3 deadbolt has a 1/2-inch throw bolt made of zinc and fails under kick-in force after one impact in testing; a Grade 1 deadbolt has a 1-inch hardened steel throw bolt and withstands 10 strike impacts in testing; for a primary exterior door in KC, Grade 1 or Grade 2 is the appropriate specification; the hardware store price difference between a Grade 3 and a Grade 1 deadbolt is $30–$60. Strike plate reinforcement: the weakest point of a deadbolt installation is not the lock itself but the strike plate and the jamb behind it — the standard strike plate uses 3/4-inch screws into the door stop and jamb wood; under kick force, the jamb splits at the strike plate location regardless of the deadbolt grade; an extended strike plate (3 inches vs. the standard 1-inch) with 3-inch screws that reach the door frame stud is the correct reinforcement — it spreads the kick load across the full frame rather than concentrating it at the jamb. A lockset website that explains backset measurement, ANSI grade by door use, and why strike plate reinforcement matters earns the homeowner who wants security done right.