All prices shown include VAT

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.



Aubi/Saracen Window Lock Extensions

Aubi/Saracen Window Lock Extensions

Each extension has a shootbolt, in addition the 840-1150mm and 1100-1410mm extensions have a roller...

£8.50

... more info

Aubi/Saracen upvc window lock gearbox mechanism

Aubi/Saracen upvc window lock gearbox mechanism

This Aubi/Saracen window lock mechanism comes in three pieces. The extensions are sold separately...

£8.45

... more info

Avocet/WMS Inline Espagnolette upvc Window Locks

Avocet/WMS Inline Espagnolette upvc Window Locks

This Avocet espagnolette upvc window lock should have either Avocet or WMS printed into the rail,...

£6.95

... more info

Avocet/WMS Offset Espagnolette upvc Window Locks - U Rail

Avocet/WMS Offset Espagnolette upvc Window Locks - U Rail

This Avocet espagnolette upvc window lock should have either Avocet or WMS printed into the rail,...

£6.95

... more info

Avocet/WMS Offset Slimline upvc Window Locks - U Rail

Avocet/WMS Offset Slimline upvc Window Locks - U Rail

This Slimline Avocet espagnolette upvc window lock should have either Avocet or WMS printed into...

£7.95

... more info

Kenrick Excalibur upvc Window Lock Gearbox

Kenrick Excalibur upvc Window Lock Gearbox

The Kenrick Excalibur upvc window locking system comprises of three pieces. This part, the Kenrick...

£8.45

... more info

Maco Inline Espagnolette upvc Window Lock Mechanism

Maco Inline Espagnolette upvc Window Lock Mechanism

This MACO espagnolette upvc window lock mechanism should have MACO printed into the rail, visible...

£6.95

... more info

Maco RAIL Window Lock Espagnolette Mechanism

Maco RAIL Window Lock Espagnolette Mechanism

This MACO RAIL espagnolette upvc window lock mechanism should have MACO printed into the...

£9.20

... more info

Maco MK2 Shootbolt upvc Window Lock Gearbox

Maco MK2 Shootbolt upvc Window Lock Gearbox

This MACO MK2 upvc window lock is a three piece system. The MACO gearbox is in the centre of the...

£11.45

... more info

Maco MK2 Short upvc Window Lock Gearbox

Maco MK2 Short upvc Window Lock Gearbox

This MACO Short upvc window lock is a three piece system. The MACO gearbox is in the centre of the...

£10.95

... more info

Maco MK1 upvc Window Lock Gearbox

Maco MK1 upvc Window Lock Gearbox

This MACO upvc window lock is a three piece system. The MACO gearbox is in the centre of the upvc...

£8.95

... more info

Maco Offset Espagnolette upvc Window Lock - Flat Rail

Maco Offset Espagnolette upvc Window Lock - Flat Rail

This MACO espagnolette upvc window lock mechanism should have MACO printed into the rail, visible...

£6.95

... more info