SPECIALIST LOCK REPAIRS

UPVC Door Gearbox Replacement

Diagnosis and replacement of failed UPVC and composite door lock gearboxes in Cambridge and surrounding areas.

Has the centre gearbox failed?

The gearbox is the central part of many multipoint locking mechanisms. It transfers movement from the handle and key to the rest of the lock. When internal components wear or break, the door can become difficult or impossible to operate.

Floppy handle

A handle that suddenly loses resistance can be a symptom of an internal mechanism failure.

Handle won't lift

A seized mechanism or alignment problem can prevent normal movement and should be diagnosed before parts are ordered.

Key turns but door stays locked

Movement at the cylinder does not always mean the gearbox is successfully operating the locking mechanism.

Matching the correct replacement

UPVC door mechanisms come in many designs and dimensions. Correct identification matters: measurements, faceplate details, spindle position, backset and the existing multipoint strip can all help determine the appropriate repair.

About multipoint locks

Cambridge-area UPVC lock specialist

For gearbox, multipoint lock and other UPVC door problems, The UPVC Locksmith covers Landbeach, Cambridge and surrounding locations within the service area.

Get help with your door