Cole, I am an ornamental liscensed contractor, an I have installed several security doors. It is a very easy project, one that most anyone can do themselves. All you need to do is to take the measurements of the door to a welding shop and they can give you a price for just selling you the door, or they can give you an installed price. Honestly though, the doors that you get at Home Depot or Lowe's anr basically the same door if you can find one in a style that you like. The attachment of the door to the frame is usually 6 or 8 screws with one way heads on them..ie. you can't screw them back out without the proper tool. I charge about $200.00 for the basic doors that I fabricate, and another $75.00 for the install. I use a heavier guage steel than the less expensive ones a the stores. Hit me back if this doesn't help, and I will see if I can help further. Paul