If you put it in a couple hours of your time and the price for the parts. If a garage does it anywhere from a 100- 350 dollars. Since you don't say what vehicle I can not give a parts price or exact amount. I suggest though if you are going to have a garage/mechanic do this work that you call at least 3 different places to get a possible price quote for the work. That way you can make a informed decision on which place to take the vehicle to for the work.
