Removing a broken key from a shop door, in the video above. This happened because the keyhole becomes clogged with accumulated dust and dirt over time, which prevents the key from rotating freely. To lower the chances of this happpening, regular lock maintenance should be carried out by spraying WD-40 into the keyhole, then inserting the key and rotating it to free the keyhole of dirt and dust.
Additionally, a higher chance of breakage can also occur when the key used is already bent. Keys like this should not be used anymore for such reasons.
In the photo above, we were tasked with removing the broken key from a glass door lock. Our customer broke the key while twisting it too hard, leaving half of it embedded in the keyhole. After we arrived on site, she explained that she had difficulty turning the key. Luckily, she had a spare key lying around, so we advised removing the broken piece, instead of changing it.
We managed to remove the broken piece, and tried the spare key. Indeed, it could not turn fully. So we dismantled the lock to investigate. We found out that the mechanisms inside the lock were dried up, and badly clogged with dirt. So we serviced the lock and put it back together. Afterwards, the key could turn smoothly without issues. Our customer was relieved that she didn’t need to spend extra and change the lock, as she had initially thought that it was spoilt.
Facing the same situation, and still have a spare key? Do remember that you always have the option of removing the broken piece, before resorting to changing the lock.
For locks that are constantly exposed to the external environment, or exceptionally dusty and dirty areas, lock maintenance should be carried out twice a year. An example would be main door and gate locks that face the common corridor. For locks that are housed indoors, lock maintenance should be carried out at least once a year. An example of this would be the room doorknob.
In instances where the customer does not have a spare key, he can opt to change the lock.