We've been in this trade since 1924, so this history isn't abstract to us, it's the span of our own business. Here's what's actually changed.
Early 1900s: Basic Pin Tumblers
The pin tumbler design (patented by Linus Yale Jr. decades earlier) was standard, simple, mechanical, and reasonably effective for its era, though vulnerable to picking by anyone with the skill.
Mid-Century: Standardized Deadbolts
Deadbolts became a standard addition to residential doors, adding real resistance to forced entry beyond a simple spring latch.
1970s–80s: Security Pins
Spool and serrated pins were introduced to resist picking, an early answer to increasingly sophisticated break-in techniques.
1990s: The Transponder Chip
Automotive keys gained embedded chips that communicate with a car's immobilizer, a major security leap that made simple key-cutting theft largely obsolete. See why modern car keys cost more.
2000s: High-Security Cylinders Go Mainstream
Restricted keyways and UL 437-rated cylinders became accessible to everyday homeowners and businesses, not just high-security government facilities. See high-security locks explained.
2010s–Today: Smart and Connected Locks
Keypad, app-based, and biometric locks entered the mainstream, adding convenience and, done well, real security. See are smart locks really safe?
What Hasn't Changed
The fundamental goal is the same as it was a century ago, control who can get through a door. The tools have just gotten a lot more sophisticated on both sides.
Curious what's right for your home today? Call 818-249-5128.