uPVC Door Lock Problems: Common Causes and Repairs
uPVC doors fail in a handful of predictable ways. Here are the most common ones we see in Bristol.
Worn gearbox
The central gearbox is the most heavily loaded part of a uPVC door. After thousands of cycles it wears out and the locking points stop engaging properly. Often replaceable as a single part.
Dropped door
Hinges loosen over time, the door drops, and the locking points no longer line up with the keeps. Hinge adjustment usually restores normal operation.
Snapped or seized cylinder
Worn or attacked cylinders may snap or seize. Replace with an anti-snap cylinder to prevent the most common break-in technique.
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