You can use an Allen key on the screw on the door side of the hinge to adjust uPVC Door Hinges for proper door alignment. Begin by adjusting the door while it is closed. Turn it clockwise a couple of times and check if it still drags. Adjust the hinges so they open and close smoothly. By adjusting the screws and closing the door to check the fit, you can obtain a perfect fit. However, if you are not sure how to go about it, you can always call us on 1800 102 9880 to get the right assistance for this purpose.