We are having new upvc door fitted at the front, I have a veritas alarm but I have been told we need to disconnect the alarm as when they remove the old door the alarm will sound. How do we do this? Also when the new door is fitted the wires to the door contacts need extending again what parts do I need?
Thanks in advance

Michael, November 2014

a six terminal junction box and a meter of 4 core cable

gts, November 2014