Been using Jasper for about 10 years, they have always taken care of warranty issues in a timely manner the few times I have had them. I have been to many different machine shops in our area and can safely say after seeing Jasper's plant that no one in my area has the equipment or testing procedures they do. Get a good reputable shop to do your work and they will have no problem dealing with any issues that might arise. – Emile G.