We have just had a new composite front door fitted, but it does not seal properly at the top and bottom corners on the lock side. The fitters have been and adjusted it but not made any difference. The door is slightly out of shape as showed by the use of a plumb line. The company now wants to make the frame fit the door, saying this is what should have been done in the first place, and want to remove it, taking out the rendering and fit it again at the affected side. If the frame is square, which it is, shouldn't they fit another door that is true instead of trying to make the frame fit the warped door? We have not paid for it yet fortunately, but any advice would be most appreciated thanks.