UPVC Window Lock Mechanism

Huge Range of Replacement UPVC Window Locks

We stock a large range of upvc window lock mechanisms. The selection we offer covers the most common types used over the last 30 years. These window locks have been primarily used on uPVC windows although they have also been fitted to timber windows occasionally.

If this is your first time buying a replacement upvc window lock, you may find our identifying guide useful. We also detail lock information on the product pages.

What is a Window Lock Mechanism?

A upvc window lock mechanism is the gearing part inside a window that's driven by a handle. The upvc window lock below shows one of many different types.

Dimension A- Backset
Dimension B- Mushroom Height
Dimension C- Rail Length
Dimension D- Rail Width(Click on link below)
The long metal plate is the rail and the part in the centre of the window lock is the gearbox.

Window Lock Identification Guide, Click Here.