Shop our range of bi-fold door locks, replacement bi-fold door gearboxes, lock cases, slave locks and intermediate locking mechanisms for aluminium and uPVC bi-fold doors. This collection is designed to help you find the correct replacement part for repairing damaged, worn or faulty bi-fold door locking systems.
We stock a wide selection of replacement bi-fold door lock mechanisms to suit many popular brands and profiles, including systems with different backsets, handle centres, spindle sizes and rod connections. Whether you are looking for a bi-fold door gearbox replacement, a slave lock, or a complete locking case, our range makes it easier to match the right part for your door.
Suitable for trade professionals, locksmiths and homeowners, these replacement bi-fold door locks are ideal for restoring smooth operation, reliable security and a proper fit without replacing the full door system. If you are unsure which bi-fold lock replacement you need, our team can help you identify the correct part.













