Don't trust a phone estimate at all. They can't viably give an accurate one that way.
ADT usually is a free install with windows being a tad of charge and you WANT the ground level windows protected, also a couple of emergency buttons in places like the bedroom, and one in each bathroom as well as a room she would use to try to hide in.
Make sure the phone lines are protected in steel conduit outside so they cannot be cut.
Some local alarm companies will match ADT also.
We have one hardwired system as well as a wireless backup, both with motion detectors as well as contacts on every opening on the first and second floor.
Hardwire has smoke detectors on each floor that sets off a seperate alarm after a preset time (we set that up abit in case its just the kitchen steam setting it them off lol)
We also have security cams for the exterior as well as a couple of interor that lead to a hidden vcr as well. But we bought and installed all the systems as we renovated the house. And simply pay a monitoring fee to a local alarm company that deals with ADT etc alarms.
Also have the normal killer dawg, 9mm's and shotguns.
