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Step 1
Remove the trim or casing from around your door so that you can access the entire unit. Use a hammer to gently pry away trim from both sides of the door. Remove the nails from the trim, and set the trim aside for reuse.
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Step 2
Examine the hinges in your door. Most security doors are installed using special one-way screws that cannot be removed with a regular drill or screwdriver.
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Step 3
Purchase a one-way screw remover from your local hardware store. This tool may also be known as a security screwdriver or a screw extractor. If you can't find one of these tools at a hardware store, check with a local locksmith shop.
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Step 4
Use the one-way screwdriver to remove the screws from the door hinges. After all three hinges have been detached from the door, remove the door from the opening, and set it aside for reuse or disposal.
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Step 5
Check the jambs of the frame to see how it is fastened in place. If it is fastened with one-way screws, use your removal tool to remove these fasteners.
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Step 6
Access hidden fasteners by prying the frame loose from the wall using a pry bar. Slide the blade of a sawzall between the jamb and wall framing, and use it to cut any hidden fasteners.
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Step 7
Remove the frame from the opening. If the frame is welded, use a saw to cut the frame into several sections before you remove it. In most cases, you can simply pry it out of the opening without cutting.
