Hi! Thanks to both of you for your replies. The wiring for the old alarm is already there and the builder suggested leaving it jutting out so that a new alarm could be installed. Old alarm was completely wrecked. Haven't got a quote for either a new wired or wire free alarm. Didn't realise that a wire free alarm was a lot more expensive and needed more maintenance. It seems taht maybe leaving the wires jutting out untill I can get a new wired alarm is the best option. Builder not doing that part of the job - so will have to get it done myself. Thanks again.