An interconnected lock pairs a deadbolt and a lever latch in one unit: one turn of the inside lever retracts both at once, so leaving takes one action, the single-motion egress rule building codes require. King Locksmith and Doors Inc. installs, repairs and rekeys interconnected locks across Washington DC, Northern Virginia and Maryland, licensed, insured and bonded for 25 years.
Interconnected locks are built to ANSI/BHMA A156.12, the standard for locks that join a deadbolt and a latch. Two chassis sit in cross bores, the holes drilled through the door face, linked by an interconnect bar, the arm that lets the inside lever pull back bolt and latch. Outside: keyed cylinder and lever. Inside: thumbturn and lever.
Both bores measure 2-1/8 inches, spaced 4 inches apart on standard preps, 2-3/4 inch backset, the distance from door edge to bore center. Cylinders take a 6-pin conventional plug or an SFIC core, the removable core a control key pulls, so apartment corridors in the District of Columbia key into one master system.
One turn of the inside lever pulls back the bolt and the latch together, so nobody hunts for a thumbturn in a smoky hallway at night. That single motion is what egress codes ask of most occupied doors, and a separate deadbolt stacked above a lever latch simply does not deliver it.
When bore spacing matches, an interconnected lock drops into a door already cut for a knob and deadbolt, and an SFIC cylinder rekeys by control key in seconds. Ready to upgrade? Book us.
Apartment entry doors run more interconnected locks than any door we service. Multifamily buildings across NOVA specify them: a tenant leaves with one lever turn while a 1-inch deadbolt still guards the door at night. Senior housing does too.
They are the wrong pick for a school corridor, where a classroom function lever, no deadbolt, keeps exits clear, or a storeroom that needs a key every time. Not sure which function fits? Our interconnected lock locksmith surveys your door free.
From apartment corridors to townhome entries, we survey the door, confirm the bore spacing and recommend interconnected or another function, with no charge and no pressure.
These five brands ride on our trucks because their interconnected locks survive apartment traffic: parts we carry, linkages that hold, keying that fits your building.
Schlage H-Series holds Grade 1, the toughest commercial rating, and we stock its levers and bolts, so a multifamily entry door installs from our truck.
Marks USA 22 Series takes conventional or interchangeable cores, so a new interconnected lock keys straight into whatever master system your apartment building already runs.
Arrow H Series levers and interconnect bars swap in the field, meaning a dormitory door gets its linkage restored same visit without pulling the lock.
Kwikset Interconnect brings interconnected egress to houses and townhomes at residential prices, with a rekeyable cylinder we reset on your doorstep in about a minute.
The interconnect bar, the arm linking the two chassis, slips or bends, so the inside lever turns but the deadbolt stays thrown. The latch stops retracting fully as the retractor, the part that pulls it back, wears. The deadlatch, the plunger beside the latch, drops into a misaligned strike, so the door shims open with a card.
On arrival we check the linkage first, then latch throw, then strike alignment before quoting. Locked out or locked in? Our mobile units respond 24/7. Call (202) 800-2622 in Washington DC and NOVA or (240) 345-1455 in Maryland.
We reseat or replace the interconnect bar from stock, then fit a new retractor or 2-3/4 inch latch when the lever stops pulling it fully. A dropped deadlatch is cured at the strike, not the lock. Repair wins while genuine parts exist; a bent chassis means replacement.
After forced entry or a wrong function, we replace. We match grade, 4-inch bore spacing, backset, cylinder and finish so it drops into the existing prep, no fresh drilling, and rekey it to your master system where the keyway allows. Measure, match, install, test the one-motion exit before leaving. Frame fixes by our in-house door expert. Free estimates.
An apartment door that locks the tenant in is a life-safety failure, not a maintenance ticket. Call (202) 800-2622 now or book installation online.
Interconnected locks secure apartment doors, dormitories and senior housing, but every door has its match. Browse our lock type resources below to see each function, its applications and our services.
Straight answers from King Locksmith Technicans to on {cylinder-type} questions customers ask us most.
(240) 345-1455
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