I have a patio door that lets cold air in bad in winter and faces North/ It has a fake door on the left, a real door in the middle, and a fake door on the right. ALl one unit. I dont think the door opening in the middle is square. I know I have to take the inside casing off but do I have to take the outside casing off to to shim it? How does the unit itself attach to the house? Can anyone tell me how to fix this?
- posted
19 years ago