![Missus is fed up of the front door being able to be unlocked by our toddler (he's previously got a chair to undo the chain). Can I replace this latch with a Missus is fed up of the front door being able to be unlocked by our toddler (he's previously got a chair to undo the chain). Can I replace this latch with a](https://i.redd.it/gopajm06njeb1.jpg)
Missus is fed up of the front door being able to be unlocked by our toddler (he's previously got a chair to undo the chain). Can I replace this latch with a
![lock - What could be wrong? My front door latch opens OK from inside, poorly from outside - Home Improvement Stack Exchange lock - What could be wrong? My front door latch opens OK from inside, poorly from outside - Home Improvement Stack Exchange](https://i.stack.imgur.com/3KcQV.jpg)
lock - What could be wrong? My front door latch opens OK from inside, poorly from outside - Home Improvement Stack Exchange
![Original PGT 8.5" White Sliding Patio Glass Door Handle Set Replacement with Thumb Latch Lever, Screws - Fits 3-15/16" Screw Hole Spacing Door Hardware - Durable Ergonomic Design, Smooth Operation : Amazon.co.uk: Original PGT 8.5" White Sliding Patio Glass Door Handle Set Replacement with Thumb Latch Lever, Screws - Fits 3-15/16" Screw Hole Spacing Door Hardware - Durable Ergonomic Design, Smooth Operation : Amazon.co.uk:](https://m.media-amazon.com/images/I/51Vv6jq94RL.jpg)
Original PGT 8.5" White Sliding Patio Glass Door Handle Set Replacement with Thumb Latch Lever, Screws - Fits 3-15/16" Screw Hole Spacing Door Hardware - Durable Ergonomic Design, Smooth Operation : Amazon.co.uk:
![How can I keep these old, awesome doors but modernize the locks and handles on them? ADT can't install the smart lock we wanted as long the deadbolt is built into the How can I keep these old, awesome doors but modernize the locks and handles on them? ADT can't install the smart lock we wanted as long the deadbolt is built into the](https://i.redd.it/5wotlouy5zb91.jpg)
How can I keep these old, awesome doors but modernize the locks and handles on them? ADT can't install the smart lock we wanted as long the deadbolt is built into the
![doors - What is the name of this cast metal part inside my lockset? - Home Improvement Stack Exchange doors - What is the name of this cast metal part inside my lockset? - Home Improvement Stack Exchange](https://i.stack.imgur.com/Rnuoul.png)