Sliding patio door lock

Hello,

Unfortunately, we do not carry a replacement for the patio door lock assembly shown in your photos. We do carry the 82-005 surface-mounted handle set that does not require a mortise lock but you would most likely need to drill new installation holes, being careful not to hit the glass in the door. You would also need to make sure that you have space to mount the keeper. Take a look and see what you think.