2005 Ford E250 has dual glass side mirrors. Bottom potion of both mirrors is so loose they just point to the ground. I replaced them the first time for same reason and bought them from my Ford dealer. Is there a repair that can be done or a better quality replacement out there. They all look like the same design.

SOURCE: REPLACE FORD TAURUS WAGON DRIVER SIDE MIRROR

you have to take the door panels off. remove all screws you will have plastic pieces called christmas trees that hold the panel in place. there is a tool for this you can pick it up at Napa for cheap this will allow you access to the inner space of the door un plug plugs to power switchs and the rod to your door catch hardeware you then can remove panel completely to get access to mirror assembly. installation of door panel is in reverse

SOURCE: Replace passenger side power mirror clearance lamp (bulb only).

If you are facing the passenger side mirror adjust the top (large) mirror so that it is turning in towards the truck as far as it will go. Then look behind the mirror in the bottom righthand corner (outside bottom corner) and you will see a silver metal clip. Take a straight head screw driver and push on that clip and the lens will pop out. Then you simply unscrew the bulb holder from the lens and replace your bulb. Good luck!

SOURCE: how to replace the light bulb on exterior mirror 2003 ford expedition

The one with the turnsignal intergrated into it?

If so.....

Push the Mirror FORWARD, up close to the pivot poit there is a small torx head screw - unscrew that.
At the tapered end carefully pull/pry down. That end has a small metal spring clip that holds it up, be careful with it, if it snaps, you can NOT by a new one...

SOURCE: 2008 Ford Fusion Wing Mirror Replacement

I checked Ford Focus mirror replacement and it seems to be the same. This is for the manual, unheated mirror.

Remove the mirror cover inside the door - slide a screwdriver behind the cover and pry loose carefully.

Remove the single 10mm bolt and the mirror comes free.
NB. Do not drop the bolt into the door.

SOURCE: Replace Passenger Side Mirror on 2002 Ford F-150

On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls. Then you can access the bolts that secure the mirror onto the door