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How to Replace a UPVC Door Lock If you have recently moved to a brand new home or experienced a break-in at your home and you need to change the locks on your doors is an important step to regain security. But the process isn't quite as daunting as it might seem. It's just a matter of preparation and the right tools to avoid a locksmith visit. Identifying the issue It is crucial to identify the indicators of a uPVC lock that is not working properly. If you have trouble turning the handle, or you hear unusu