Squeaky hinges are nothing new or to get alarmed about. In dry weather it becomes more of an issue but easily resolved. Remember hinges are a moving part of any door and moving parts require lubrication. Composite Doors or uPVC Door are no different to any other door. They are heavy and can squeak and make noises at times.
Resolution of Squeaky Hinges
WD40 is a quick and easy fix or you can also use vaseline. All you got to do is spray the WD40 on the top and bottom part of each hinge a few times each year. Open and close the door a few times after spraying and then you can wipe of excess oil with a paper towel or cloth.
See video below