How long can they go off for until you are legally allowed to attack them with a hammer?

New installs have a limit of 3 minutes or something.

When we had ours done we had to provide the local police station with a form with the name of 2 keyholders who live locally (ie we had to give keys to our neighbours) along with our mobile numbers.

Anyone who doesnt do this deserves their alarm to be fubarred – all imo!

btw expanding foam might be a less violent way of quietening the problem?

I have opened up the box and removed the siren before now. Left it for the owner with a note saying next time I would turn it off with a hammer not a screwdriver.

Call the Police just in case someone is in trouble???

Cops will also leave a message for owners.