On May 1, 12:53*pm, woods wrote:
My daughter has a steel entry door made by Masonite that she wants to
replace with another style of *steel Masonite door. *One carpenter
says she won't be happy with it unless she replaces everything -
prehung door with side window. *The other guy says if she buys the
same brand door he should be able to get it installed OK. *Anyone have
experience with just replacing a door only?

It's not rocket science. As long as the door frame is in good
condition, and is relatively square, there's no reason not to simply
replace the door.

The only issue you will run into is if the hinges are in different
places. Then you will need to chisel out new mortises for the new
hinges. You will also want to pull the interior trim off and install
shims behind the new hinge locations before you run long screws into
the stud behind the door frame.