A bath cabinet vanity is designed differently than standard bathroom cabinets. The vanity is typically a separate piece of furniture into which a sink is placed. The mirrors are often attached to the back of the vanity, as opposed to being hung directly on the wall. The mirror is used to create an antique feel. Follow these steps to replace a bathroom vanity mirror.
Step 1 - Inspect the Connections
Closely examine how the mirror connects. You may need to crouch next to the vanity to do so since you won't be able to get behind it. In most cases, the mirrors are actually attached to the sides of bathroom vanity cabinets. Oversized mirrors have additional connections both under the counter and inside the cabinet.
Step 2 - Remove the Mirror
Have a friend help, as these mirrors can be much heavier than they appear. Use a wrench to remove the bolts that hold the brackets in place at the side of the vanity. Place the bolts and brackets to the side. If your mirror also attaches under the counter, remove those bolts and screws as well. Gently pull the mirror away from the wall. If you find another connection from the mirror to the stud, remove it.
Step 3 - Measure and Purchase New Mirror
Measure the old mirror. If it is broken and can't be measured, measure from the outside edge of the cabinet to the outside edge of the hinges. Most mirrors are slightly larger than this distance in order to cover the hardware and frame. Purchase a new mirror with dimensions as close to your measurements as possible.
Step 4 - Prepare New Mirror
Prepare the back of the mirror before you install it. In most cases, you just need to clean it with window cleaner and allow it to dry. Some mirrors require you to add an epoxy substance to the area where the hinges will be attached, in which case the mirror will come with instructions for the epoxy.
Step 5 - Attach Mirror
Place the mirror over the hinges and attach it as directed. You won't be able to drill through the mirror, so the hinges will be placed on a bracket on the backside of the mirror. Some frames require that you use adhesive around the inside edge of the mirror. If that is the case, allow the mirror to stay in place, unmoved, for several hours. You can use clamps to hold the mirror in place. Once the adhesive has settled, you can begin using the cabinet again.