Two ways to adjust a door.
1/ If there are large flag style hinges these are adjustable three ways, usualy with a 3 or 4 mm allen key.
Dependant on the hinge turn the allen key and watch to see if the door moves the way you want.
If the door moves the wrong way then turn screw back and try again. The screw you require is normally set into the hinge and is altered with the allen key horizontally.
2/
The other way is to repack the door using pvc packers.
This does involve a higher level of skill.
I have an explanation and instructions on pdf so if you send an email i will willingly send to yourself.
Thanks Cavan
Cavan Welsh Window Systems, August 2009