removing a mirror from a bathroom wall

[Minnesota]

What is the best and safest way to remove a big mirror off of a bathroom wall. I can not tell how it is attached but think it might be glued on with some sort of adhesive. It has also probably been up there for about 20 years.

[Clanad]

Unless it is glued to the wall, which is highly unlikely, you may have overlooked small metal devices at the bottom and top of the mirror.  They just overlap the mirror by less than 1/2 inch and there's probably only two each on top and bottom.  These are spring loaded.  If you slide the mirror, still against the wall straight up (towards the ceiling) ... carefully, they will stretch out and then the mirror can be lifted out of them.  This is the most common method of attaching a frameless mirror.  At any rate, Good luck!

[landie]

Whichever way, make sure that you cover the entire surface with a self adhesive plastic sheet before trying to move it. This will reduce the likelyhood of any glass fragments injuring you.