Most body shops have some sort of a guarantee or warranty for the repairs they perform. If the problem that occurs is related to the accident and not a workmanship problem with the body shop, then you can go back to the insurance company up to two years after the time of the accident for anything else that happens.
Make sure before you take your car to a body shop you research the shop and see what their warranty is and exactly what it covers and for how long. Auto Tech Services offers a lifetime warranty as long as you own your car. Check out our warranty page for more information.