 How expensive would it be to insulate each house? Yeah, it's not that much. EMP protectors, in fact, even places on Amazon sell it, so it's really inexpensive. A couple hundred dollars, maybe? Yeah. You know, but you might have, if you don't know how to install it, you might have to have an electrician come in, so most that would cost you would be 500 bucks with the unit and the service charge. Ballpark. Now, a full-scale attack with one of these pulse machines would do what?