
Single vs. Double Cylinder Deadbolt Installation: Choosing the Right Lock for Your Door
A single-cylinder deadbolt is operated by a key on the exterior and a thumb-turn on the interior. It is the most common choice for residential front and back doors in Woodbridge Township, and it strikes a practical balance between security and quick egress in a fire or emergency. A double-cylinder deadbolt requires a key on both sides, which removes the vulnerability of an intruder breaking a nearby glass panel and reaching in to turn a thumb-turn. However, double-cylinder locks require careful consideration for fire-egress compliance, particularly in rental properties and commercial spaces governed by Middlesex County building codes. Our technicians walk you through the right choice for your specific door configuration before any hardware is ordered or installed.
For apartment and condo doors — common in Woodbridge Township's many multi-family buildings — a jimmy proof deadbolt installation is often the most practical upgrade. Unlike a standard rim latch, a jimmy proof deadbolt interlocks with the strike plate in a way that resists prying and spreading attacks on the door frame. We install jimmy proof deadbolts on steel-clad and hollow-core doors alike, using the correct backset measurement and reinforced strike plates to ensure the lock performs as designed rather than as a false sense of security.

