Depending on the door lock and style, you may have to remove the knobs to replace the lock. In some cases, there may be a set screw under the knob, and you can remove it with an Allen key.

The best keyless door locks on Amazon, including ones that auto-lock, have a flex-lock, need to be manually locked, have an LED light, don’t require batteries, and more. From brands like Kwikset ...

August, the Smart Lock company, last week secured $30 million (£20.1 million) in funding to expand its business and the availability of its digital lock and access system, which it describes as a ...