How to Fix a Upvc Door Locking Mechanism A Upvc door locking mechanism can not work properly due to a variety of reasons. It could be due to a broken or damaged lock, a broken hinge or misalignment. An intruder can also cause damage. Adjusting the butt hinges If you have an uPVC door and it's not locking properly You may have to adjust the butt hinges. In order t
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