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UPVC Window Hinges UPVC hinges are a crucial part of the window's functionality as well as aesthetics. Maintaining them in good condition will ensure smooth operation and improved security. However, just like any mechanical device, they can encounter problems. Fortunately, regular lubrication will solve most of these issues. It is advisable to squirt hinges with a lubricant specially made for uPVC every six to twelve months. uPVC friction hinges UPVC windows have become an increasingly popular choice for home