Window Gearboxes

A window gearbox is the hidden mechanism that’s keeping modern windows (especially uPVC types) working smoothly. They are the operational “hearts” of espag window systems that convert handle rotation into linear motion to engage the multiple locking points. Because of their inherent function, these devices can fail over time. Springs can break, gears can wear down, mechanisms can get stripped, and other issues can crop up undermining your window’s operation.

Quality uPVC window gearbox replacements are crucial in restoring your window’s security and functionality (without replacing the entire window system). So, if your uPVC windows are experiencing locking failures or the handles keep spinning endlessly (or even windows refusing to secure properly), you’ll know it’s time for a gearbox replacement.

It doesn’t matter if you’re working with casement windows with espag systems or tilt-and-turn versions (and even modern aluminium windows). Our expert Locks & Handles staff will help you identify the correct gearbox type and other specifications. We have nearly 50 gearboxes for windows in our collection, including espagnolette gearboxes from Anglian and Avocet, backsets from Fuhr and GU, and even shootbolt gearboxes from Maco and Mila. Our team has your back when it comes to ensuring your window’s smooth operation and robust security.