How to fix a sticky door lock
It’s amazingly simple to fix a sticky door handle, where the key is difficult to turn in the lock.
You will need (as pictured):
- A piece of paper (A4 in this example)
- scalpel / sharp knife
- graphite pencil (solid artist style graphite is preferable)
- straw (with a bend if possible)

Directions:
- Scratch a small pile of graphite onto the paper using the scalpel
- Bend the straw at the kink, and push the files into the short end, using the bend to ensure they don’t drop out the other end
- Place the end of the straw with the filings directly onto the door keyhole and gently blow them into the keyhole
- Grab the key and insert it in and out of the lock several times, turning the lock mechanism a few times
That’s it! Try opening the lock – it should now be much easier to turn. If the improvement is less than desired simply repeat the process.