This is definitely a thing in Ireland and generally seems to be better value than specialist bike insurance. From my limited research, the latter is not worth g

This is definitely a thing in Ireland and generally seems to be better value than specialist bike insurance. From my limited research, the latter is not worth getting for most people, but if you already have home insurance it's almost certainly worthwhile making sure it covers your bike, sometimes at a small extra cost to include bikes stolen not from your home.