| submitted by /u/CreamyKiwi
Sorry if this isn’t a good place! But if this question is OK, I would be very happy for any information anyone could give.
We were debating whether or not to replace the doorknob. (If we don’t, it obviously needs to be polished.) I think it seems unsafe for an exterior door but would love any additional information. Can’t quite figure out what they would have called this type of lock back in the day, so my google-fu has hit a dead end.
Looks like one of those old National locks. They were designed to be replaced, not repaired, but the company went out of business a very long time ago. The National Cabinet Lock division is still around as NCL, but that won’t help with this.
I would just install a new privacy lock. The new locks are larger and will cover up the holes of the old one. I haven’t done residential work in years, but I think various brands make privacy locks with glass knobs.
Hi, need advice
Call a locksmith.
Explain to locksmith.
Pay locksmith to do locksmith things.
It’s just a regular door, not a sliding door
This locksmith recommends just a regular lock not a sliding door lock.
Any foolproof way to prevent this from happening?
Remove the door.
Keep a hungry bear on the balcony. I bet the tenants won’t ever use it.
Evict your tenants.
Burn the building down.
Create an elaborate plot in which you gradually feed high quality intelligence to the security services about a foreign government using a nearby building to train terrorists. Ensure that it’s a building that can only be seen from your balcony. The security services will commandere use of your apartment for surveillance and your tenants will no longer get locked on the balcony. The feds might though, so best go with the bear.