Cylinders, cams, and latches
The cylinder is the part you put a key in. The cam is the little tail that has to match the latch. The latch is the Adams Rite-style (or similar) mechanism in the stile.
Rekeying the cylinder is common. Replacing a latch that no longer holds the door is a different job. Mixing those two up is how shops stay unlocked overnight.
Pairs of doors
A pair with a key cylinder on one leaf and a dummy or flushbolt on the other needs both leaves looked at. Flushbolts that are seized are why “we locked it” still leaves a gap a pry bar likes.
Questions people actually ask
The key turns but the storefront does not lock.
That is often a wrong cam, a failed latch, or a door that is so far out of alignment the bolt never reaches. It is not automatically a new key.
Related work
Served from Taylor
Based in Taylor, City Locksmith Taylor provides mobile service throughout Downriver and nearby communities. Taylor neighborhoods we cover, then the rest of Downriver:
From the truck
Verified jobs related to this service.

Job case study · January 2025
Commercial rekey at Nothing Bundt Cakes, Allen Park
The new Allen Park shop needed the locks rekeyed before opening so previous keys would not work.
See the job
Job case study
Storefront rekey in Woodhaven
A Woodhaven storefront needed the cylinder rekeyed so previous keys would not open the shop.
See the job
Job case study · January 2026
Three-lock rekey at Hibachi Me 313
The Van Born location needed the locks changed so previous keys would no longer work.
See the job