UPVC Window Locking Mechanism

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.

Click here to read our UPVC Window Lock Guide

Mila upvc Window Lock Gearbox – Extensions
£10.45 – £11.40 Select options This product has multiple variants. The options may be chosen on the product page
Maco RAIL Window Lock Espagnolette Mechanism
£9.20 – £16.40 Select options This product has multiple variants. The options may be chosen on the product page
Maco MK2 Short upvc Window Lock Gearbox
£10.95 Select options This product has multiple variants. The options may be chosen on the product page
Mila Inline Shootbolt upvc Window Lock Gearbox
£10.45 – £13.15 Select options This product has multiple variants. The options may be chosen on the product page
Maco MK2 Shootbolt upvc Window Lock Gearbox
£11.45 Select options This product has multiple variants. The options may be chosen on the product page
Aubi/Saracen Window Lock Extensions
£9.50 – £13.40 Select options This product has multiple variants. The options may be chosen on the product page
SNSI Offset Espagnolette upvc Window Lock – Flat Rail
£12.95 – £17.90 Select options This product has multiple variants. The options may be chosen on the product page
Maco Offset Espagnolette upvc Window Lock – Flat Rail
£7.95 – £11.95 Select options This product has multiple variants. The options may be chosen on the product page
Avocet/WMS Inline Espagnolette upvc Window Locks
£6.95 – £10.95 Select options This product has multiple variants. The options may be chosen on the product page
Avocet/WMS Offset Espagnolette upvc Window Locks – U Rail
£6.95 – £10.95 Select options This product has multiple variants. The options may be chosen on the product page
Avocet/WMS Offset Slimline upvc Window Locks – U Rail
£7.95 – £10.95 Select options This product has multiple variants. The options may be chosen on the product page
Maco MK1 upvc Window Lock Gearbox
£8.95 Select options This product has multiple variants. The options may be chosen on the product page
Maco Inline Espagnolette upvc Window Lock Mechanism
£6.95 – £10.95 Select options This product has multiple variants. The options may be chosen on the product page
Saracen upvc Window Lock Gearbox Extensions – Deadbolt
£8.50 – £9.95 Select options This product has multiple variants. The options may be chosen on the product page
Saracen upvc Window Lock Gearbox Extensions – Cam
£8.25 – £9.70 Select options This product has multiple variants. The options may be chosen on the product page
Aubi/Saracen upvc window lock gearbox mechanism
£10.45 Select options This product has multiple variants. The options may be chosen on the product page
Saracen/Scope upvc Window Lock Gearbox – Cam
£8.75 Select options This product has multiple variants. The options may be chosen on the product page
Saracen upvc Window Lock Gearbox – Deadbolt
£8.95 Select options This product has multiple variants. The options may be chosen on the product page
Maco upvc Window Lock Gearbox – Extensions
£8.40 – £10.20 Select options This product has multiple variants. The options may be chosen on the product page
Special Order Window Lock Mech
£35.00 Add to basket

More about UPVC Window Locking Mechanism

Huge Range of Replacement UPVC Window Locks

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. A window lock mechanism is a security device integrated into windows to prevent unauthorized access and enhance safety. Designed to physically obstruct the window’s movement, typical mechanisms include bolts, latches, or clamps.

Made from durable materials like metal or hardened plastic, these locks are usually an integral component of the window during its manufacture, ensuring seamless operation.

Regularly checking the functionality of window locks is crucial, especially for windows accessible from outside or on ground level, to maintain optimal security.

For more information How to Fix a UPVC Window Locking Mechanism? – Buyer’s Guide.

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.

Types of UPVC Window Locking Mechanisms:

In the vast domain of UPVC window hardware, locking mechanisms play an indispensable role in ensuring the safety and functionality of our windows. When we talk about UPVC window-locking mechanisms, the variety may seem overwhelming at first. But each type has been crafted for specific needs and requirements. Let’s dive into the most prominent types of UPVC window-locking mechanisms available on our platform:

1.) Maco MK2 Shootbolt UPVC Window Lock Gearbox: A robust system, the Maco MK2 is famed for its shoot bolt technology. This enhances security and creates an ironclad seal when the window is locked.

2.) Saracen UPVC Window Lock Gearbox – Deadbolt: Saracen’s Deadbolt locking mechanism provides a traditional and secure method of window lock. The deadbolt mechanism offers reinforced security, ensuring that windows are virtually impenetrable when locked.

3.) Saracen/Scope UPVC Window Lock Gearbox – Cam: This mechanism involves a rotating cam action. It is easy to operate, reliable and integrates well with most UPVC window designs.

4.) Aubi/Saracen UPVC Window Lock Gearbox Mechanism: A collaboration between two stalwarts, this mechanism showcases the best features of both Aubi and Saracen, offering dependable performance and durability.

5.) Maco Inline Espagnolette UPVC Window Lock Mechanism: A popular choice for many, the Maco Inline Espagnolette system uses a rod-based design, ensuring even distribution of locking points along the window frame.

6.) Maco MK1 UPVC Window Lock Gearbox: The predecessor of MK2, this mechanism, still holds its ground with its efficiency and reliability.

7.) Avocet/WMS Offset Slimline UPVC Window Locks – U Rail: This Slimline version, with its U Rail design, offers sleekness without compromising on security. Ideal for windows where space is a premium.

8.) Avocet/WMS Offset Espagnolette UPVC Window Locks – U Rail: Another product from the Avocet/WMS collaboration, this Offset Espagnolette mechanism ensures a tighter seal while keeping aesthetics in mind.

9.) Avocet/WMS Inline Espagnolette UPVC Window Locks: Similar to the Maco Inline, this version from Avocet/WMS boasts efficiency and can easily fit into various UPVC window designs.

10.) Maco Offset Espagnolette UPVC Window Lock – Flat Rail: The Flat Rail design of this Maco Offset Espagnolette ensures a flush fit and a seamless appearance.

11.) SNSI Offset Espagnolette UPVC Window Lock – Flat Rail: SNSI offers its take on the Offset Espagnolette design with the Flat Rail mechanism, ensuring optimal security and a sleek appearance.

12.) Maco RAIL Window Lock Espagnolette Mechanism: Maco’s RAIL design offers both aesthetics and function, making it a favoured choice among UPVC window enthusiasts.