I have an ADT security system. I was having my windows replaced and during the process they lost one half of a window contact. Can I simply buy a window contact - about $4 on-line, or is this not going to match up with my current system and I have to have ADT come out to fix it - $$$$$$$

Fran in Tampa, January 2010

Fran firstly, i am feeling for you for having an ADT alarms system, was this a moment of madness for you, Probably the most expensive alarm company in the World.
Just buy one on line and fit it yourself or get a friend to, If not, your need to go to the bank and borrow against your home for a second mortgage to get an engineer to return.
My advice to you would be to ask friends if they know an engineer who could take the system over.

Nick, January 2010