Clips are a simple way to mount your bathroom mirror, but they are not very attractive — certainly not as attractive as a frame. Should you take down the mirror and frame it, though, you need to come up with a different approach to hang it. Replacing the clips using washers is a simple solution.
Replace the Mirror Clips With Washers
Mirror clips stretch 1/2 inch or more from the surface of the mirror, and though you may notch a frame to fit over or around them, it’s easier to replace them with steel washers big enough to overlap the mirror from 1/2 inch. Use 1 5/8-inch flat-head Phillips screws to hold the seams; they sink deeply enough to the studs to hold the mirror when keeping the fastener as flat as possible. Push the screws just tightly enough to prevent the mirror from going but do not over-tighten or you might chip the glass.
Glue the Framework to the Wall
After the seams secure the mirror, then the frame must fit flush against the wall. When assembling the frame, use a miter saw to cut 45-degree corners. You can use silicone caulk or construction glue to glue the frame to the wall. It is best not to glue the frame to the mirror; both types of glue are tough to remove from glass, and you might choose to remove the frame in the future.