Just had a mild panic when we thought one of our door keys had gone missing (now accounted for, so panic over).
Anyway, consumed with visions of having to change the lock/key, I googled for details, and found a wealth of videos ... it looks straightforward. I'm pleased I did, as I was completely unaware you could get thumbwheel versions - I have never liked the idea of needing a key to get *out*.
Anyway, this set me thinking. On old fashioned doors with a Yale lock, you could open from inside without a key - and now we can do that. However, you could also *lock* them without a key (as many embarrassed householders found to their cost !).
Are there any locks for uPVC doors which do this - can be locked without a key ?