What Is a Mortise Lock and Why Do Chatham Homes Have So Many?
A mortise lock is a lock mechanism that is recessed directly into a carved pocket — called a mortise — cut into the edge of a door. Unlike a standard cylindrical lockset that bolts onto the surface of the door, a mortise lock set sits inside the door body itself, giving it dramatically more strength and resistance to forced entry. The lock body typically contains a latch, a deadbolt, and sometimes additional security pins all within a single unified chassis. This is why so many builders in the late 1800s and early 1900s specified them for quality construction, and it is why so many homes throughout Chatham Township still have them today.
Brands like Corbin Russwin and Baldwin defined the residential and commercial mortise lock market for generations. A Corbin Russwin mortise lock installed in 1940 was built to last 100 years — and many of them have. A Baldwin mortise lock carries that same legacy of solid brass construction and precise machining. The challenge our technicians face regularly is sourcing matching components for these older units, or identifying when a full replacement is smarter than a repair. That is expertise that only comes from hands-on experience with historic hardware, and it is exactly what we bring to every job in Chatham.


