My door has a rim deadlock - which is at least 10 years old but works fine. How can I tell if it meets current requirements for my insurance policy - which states BS3621?
Also I have some sash windows which are locked with the old style brass thumbscrew - circa 1900. I assume these don't come up to standard as they don't have removable keys. Does anyone know if it's possible to get a replacement screw with a removable key without having to put in additional locks?