Well the parts themselves can be had at any place.
They shouldn't charge more than an hour's labor for the whole job. Up on a lift, there's the links exposed, unbolt & put new ones in.
What kinda squeak are you getting from your front end? The front end links don't squeak.
You might take your front tire off and look around the wheelwell for any shiny spots. That indicates a rubbing area. On mine, with my sway bar, the whole bar had moved left just a small amount, but enough that when the front right went down, the bar rubbed agains the upper frame area and created a shiny spot of bare metal. Pulled sway bar with a crowbar towards me a little and the squeaking stopped.
Eventually I need to get new sway bar bushings to correct that.