Locks and security

Key broke in the lock? What to do

A key usually breaks because the lock is stiff or the key is worn. Rough attempts to remove it can push the fragment deeper and damage the lock.

By Fixit247 Editorial TeamReviewed 29 September 20263 min read

Safety classification

Safe inspection only

This guide covers safe first actions only. It is not a licence to perform regulated work or enter a dangerous area.

What to do

  1. 1

    Stop turning the key

    Do not try to turn the lock with the broken piece or another key.

  2. 2

    Check if the fragment is visible

    If the end is sticking out, you can try gently pulling it straight out with tweezers or needle-nose pliers.

  3. 3

    Do not use glue

    Superglue or adhesives can seal the lock and turn a simple extraction into a replacement.

  4. 4

    Secure the property

    If the door cannot be locked, use another locked entry and avoid leaving the home unsecured.

  5. 5

    Call a locksmith

    A locksmith can extract the fragment, cut a new key and service or replace the cylinder.

When to stop

  • The door will not lock or unlock
  • The fragment is deep inside
  • The lock was already stiff or damaged
  • You are locked out
Which trade do I need?

Locksmith

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