It depends on which part of your brakes. If it's just brake pads, then it will be between $140(2 pads) to $200 (4 pads). Add or minus 20% as every store as a difference price.
There is no good or bad garage for changing brakes as it's the simplest thing. But some place offer life time waranty on the brake parts, like Speedy Brake or Midas. I actualy had mine changed in a Speedy, and when it needed to be replaced, they only charged me labor.