Broken Key Extraction in Duluth, MN

Where keys break in Duluth buildings

A key usually snaps in the lock that gets the most use or the most force. In Duluth, a few kinds of building put that load on a small number of cylinders.

• Building entries. A lobby lock is turned by every resident, several times a day, so in an apartment building it wears much harder than a single house door. The city's 2025 housing study counts a large share of Duluth's units in buildings of 10 or more.
• Converted houses. Lincoln Park's historic resources inventory records that many houses there were split into more units from the 1930s on. A side or stair door shared by several households takes heavy use on hardware first fitted for one family.
• Old cylinders. The same analysis dates 43 percent of the city's units to before 1940. Worn pins grip a key unevenly, and a copy cut from an already worn key is more likely to crack.
• Ice. A cylinder with frost inside resists turning, and twisting harder against it can shear the blade at the shoulder.

What not to do

• Do not push the broken piece deeper with the stub or a tool, and do not keep trying the spare key in the same lock.
• Do not use glue on the fragment.
• Do not dig at the fragment yourself, since that can scratch the keyway and wedge the piece.
• If the key broke in a shared entry, tell the landlord or building manager, who may control that hardware.

Details that help

• A close photo of the keyway showing whether any of the blade sticks out
• The broken-off part of the key, if you have it
• Which lock: unit door, shared entry, storm door or deadbolt, and for a duplex or row flat, which unit
• Whether the door is locked or unlocked right now
• Whether a working spare exists

If the door is locked and you cannot get in, it is also a house lockout. If the cylinder was damaged, lock repair may follow. Read more about broken key extraction, or about housing across Duluth.