I have a 3 section medicine cabinet with mirrors that has one mirror that fell off today. I simply opened it and it fell. Somehow, the bracket broke on its on after about 5 years of use. See the picture for details.
The left bracket in the picture is on the still working door and is how it should look. The bracket on the right that I am holding up for comparison is from the broken door. As you can see, this metal bracket some broke from the door. Does anyone know if this can be repaired, can I simply by a new door, or am I going to need to buy a whole new cabinet?
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Most glass repair shops can replace the mirrors in medicine cabinet doors. They just need to have the right kind of hardware to do it. So, your best bet would be to take a picture of the cabinet with a close up showing how the mirror is held in place down to any glass repair shop.
Typically, the medicine cabinet door will simply be a piece of stiff sheet metal with a piece of corrugated cardboard between the mirror and that sheet metal. There will be a channel around the perimeter of the door that holds everything together and a "clip" at one corner that holds the ends of the channel together. If that's how your door is built, any glass repair shop can replace the broken mirror. If not, take some pictures, especially close ups of what holds the glass in place and any clips or fasteners that hold the frame around the glass together, and any glass shop should be able to tell if they can fix it.
Also, there are two ways medicine cabinets mount on walls; surface mount and inset. Surface mount medicine cabinets simply screw to the front of the wall whereas inset cabinets fit onto a hole between the wall studs. If you have a surface mount cabinet, there will be screws on the back of the cabinet holding it to the wall. If it's an inset cabinet, open the cabinet door(s) and you should see screws on the sides of the cabinet holding it to the wall studs. It's going to be much less expensive for you if you bring the entire cabinet down to the glass repair shop rather than them having to send someone out to your house to fix it.