
Single-Cylinder vs. Double-Cylinder Deadbolt Installation: Choosing the Right Fit
The most common request we handle is standard single-cylinder deadbolt installation on a front or back exterior door. A single-cylinder deadbolt uses a keyed cylinder on the outside and a thumb-turn on the inside — straightforward, fast to operate from inside the home, and appropriate for most Hopewell Junction residences where the door has no glass panels within arm's reach of the thumb-turn. We install Schlage, Kwikset, and other grade-rated hardware, properly boring the cross-bore and edge-bore if the door hasn't been prepped, setting the strike plate into the door jamb with 3-inch screws that anchor into the structural framing rather than just the casing.
Double-cylinder deadbolts require a key on both sides and are the right choice when a door contains sidelights, decorative glass inserts, or large window panels close enough to the lock that a break-and-reach attack is feasible — a real consideration on some of the older Victorian-era and farmhouse-style homes found along Route 376 and surrounding roads in the Hopewell Junction area. Our technicians will walk you through the life-safety tradeoff — double-cylinder locks slow interior egress in an emergency — and help you choose hardware and placement that balances security with safe exit. We never rush that conversation.



