We have a front door with a single lock. It's a combo with handles on both sides operating a latch. It includes a deadbolt activated by a knob on the inside and a cylinder lock on the outside.
We rarely use the front door except to let guests inside. We want to address two problems:
- Operating the inside handle will unlock the deadbolt and open the door. It's not yet within reach of our toddler but it soon will be and he'll then be able to leave the house by himself. Not good.
- My wife saw a bumping demo on-line and is accordingly alarmed.
What should I do? Options I'm considering are:
- Install a door chain high enough that our toddler has no chance of opening it. Easy and cheap.
- Install a simple knob-activated deadbolt at the top of the door. Might as well put one at the bottom too. Cheap. Involves a little bit of work but I've installed those things before.
- Replace the whole door handle/lock with something like a British Chubb 5-lever mortice lock (since I used to live in the UK, I have used and installed those too).
- Other. Electronic, combination or whatever?
Any thoughts on the pros and cons of those approaches or other do's and don'ts?