We guarantee our work 100% including shipping in both directions. Sometimes things happen and if they do we guarantee to fix them at our cost. We guarantee against sharp fret ends and frets popping for 45 days after your neck or guitar is delivered to you. If you have a problem with your refret, contact us first thing and let us know. Don’t stew on it. We will make all efforts to correct the problem. We want you to be happy, to enjoy your refret and to provide you with a great experience. It is that simple and no hidden ifs, ands, or buts. That is my promise to you.