If your doors and jambs are in good shape but you just want to upgrade the look of your entryway, consider adding decorative glass to your existing steel or fiberglass doors. See our measuring guide to find out if your doors will accept our inserts.Here are a few designs to choose from, we highly recommend you visit our showroom so that you can see the glass textures that just don't show up in a picture.bBefore and after; add decorative glass to your existing door