Restore the security and smooth operation of your door with our range of replacement uPVC door lock gearboxes at Nigel Waters Hardware. We stock a wide selection of replacement gearbox lock cases suitable for uPVC, composite and timber doors.
Our collection includes gearboxes from leading manufacturers such as GU, Yale, Fullex, ERA, Mila, Maco, Winkhaus, KFV, Lockmaster, Avocet, Safeware and many more. Whether your existing multipoint lock is difficult to operate, the handle has become loose, the key will not turn or the internal mechanism has failed, replacing the centre gearbox can often be a more affordable solution than replacing the complete locking strip.
To identify the correct replacement, compare the manufacturer’s name or markings, backset measurement, centres measurement, faceplate width, spindle type and locking operation with your existing lock. Common backset sizes include 25mm, 28mm, 30mm, 35mm, 40mm and 45mm, while popular handle centres include 68mm, 70mm, 72mm, 85mm, 92mm and 95mm.
Our replacement uPVC door lock gearboxes are available in a variety of configurations, including single spindle, split spindle, lever-operated and key-operated models. Many products are designed as direct replacements, while others may require minor adjustments or the use of the existing faceplate and locking strip.
Browse our collection to find a dependable replacement gearbox for your door. Please carefully compare the measurements and photographs before ordering to ensure compatibility. Customers can also choose to collect their order from our store in Denton, Manchester.
If you are unsure which gearbox you require, clear photographs of the existing lock and its measurements can help with identification.
