When mirrors in your bathroom get older, the silvering that makes the reflection can chip away at the mirror’s edges with exposure to moisture. You don’t need to replace the whole thing – a wooden moulding on the outer edges of the mirror can be an attractive addition.

Measuring and Choosing the Wood
First take the outer measurements of the mirror and find out how wide the moulding must be in order to cover the back parts. You can choose various types of woods depending on what “mood” you want in your bathroom: darker woods will darken the bathroom and lighter wood will lighten it.

Use the Right Glue for the Job
A good type of glue to get is one that will hold well even in a moist environment; if it doesn’t, it becomes loose in the bathroom environment.

Preparing the Moulding
First you have to cut the moulding to the length you want it. Then mark it with a pencil and cut indentations in the moulding around the brackets that keep your mirror on the wall. To make it look even better, sand the rough edges.

Finishing Up
Next, sand the face of the moulding lightly and apply varnish to it, allowing it to dry. If you only want to waterproof the wood, apply one coat. You can apply more coats, sanding in-between each coat, in order to get a glossier finish.

Installation
Now that the mouldings are finished, it’s time to install them. On the back of the moulding, apply the glue and place it in position on your mirror. It’s better to glue the bottom piece first, as you can rest the two sides pieces on top of it. After these three pieces have dried, you can put the top piece in place (on top of the mirror). By doing this, you rest the top piece on the two sides pieces and don’t hold it by hand until it dries. You should hold each piece in place four about ten minutes, until the glue takes hold. After that, it should take around an hour for the glue to become completely dry.