A:AnswerThey will make holes in dry-wall and put in the speakers. They will also run the wires from the speakers to the receiver, but only to a certain distance. They will set up the speaker software and tune it up. If you have anything other than drywall, it is a different service.
A:AnswerMy home was a new home that came prewired. I did have one tv installed that was not prewired and the Geek Squard did a great job of doing an install with no wires showings. Sorry I can't help about the cost.