All about replacement sign faces ...or how to choose the right plastic front for your broken sign. You're here because your sign is broken or you want to replace the "face", and need to know how to do it and what it may cost. Let's start with this; we will determine the basic different kinds of sign faces available. This will save a lot of time and unnecessary costs later on. To make it easier to decide if you can do the project yourself, I'm adding an aptitude scale to the projects. The aptitude scale is from 1 to 10. 1 requires little or no training and 10 is for highly-skilled pros. Kinds of faces: Signs need to have the same kind of "sign face" to replace the existing faces in order to fit well. A portable economy sign with thin, flexible letters and track and a wavy face needs a wavy face replacement. It's not easy to modify the parts that hold the sign face in place if you get the wrong replacements. The wavy economy faces are ...