Multi-point Locks

SS 35mm Backset Hook 3 Point Door Lock, from our current range.

What is a multi-point lock?

A multi-point lock is a locking system that engages several points down the length of the door frame at once, rather than a single bolt or latch. Turning the key, or lifting the handle on many systems, drives hooks, bolts or rollers into keeps positioned top, middle and bottom of the frame simultaneously, compressing the door tightly into its seals. This gives a significant security and weatherproofing advantage over a single-point lock, and is the standard locking method on almost all modern uPVC and composite doors.

Multi-point systems are operated by a euro cylinder, so the gearbox itself, the cylinder, and the handle all need to work together as a matched system.

Where multi-point locks are used

• uPVC and composite doors – the standard locking system on almost every modern uPVC and composite front or back door
• Timber doors with modern hardware – increasingly specified on new timber doors for the added security and weather-sealing benefit
• French and patio doors – multi-point systems are common on larger doors needing secure engagement across their full height

Choosing the right multi-point lock

A few practical points are worth checking before you buy:

• Backset – the distance from the door edge to the centre of the cylinder must match your existing gearbox
• Hook, roller or shootbolt type – different mechanisms suit different door and frame types; matching your existing system is important when replacing
• Cylinder compatibility – see our Euro Cylinders guide for the correct cylinder to pair with your gearbox
• Handle compatibility – some multi-point systems require a specific handle type to lift and engage the mechanism correctly

Related products

Browse multi-point locking hardware via search, or see the related Euro Cylinders guide.

Frequently asked questions

How do I know what multi-point lock gearbox I need?

Multi-point gearboxes vary by manufacturer and are not always interchangeable, so matching the backset, mechanism type and follower size to your existing gearbox is important. If unsure, contact us with the details of your current lock.

Why is my multi-point lock hard to turn?

This is often a sign of a worn gearbox, misaligned keeps, or a door that has dropped slightly on its hinges, causing the hooks or bolts to bind. Adjusting the hinges or keeps sometimes resolves the issue before a full replacement is needed.

Can I replace just the cylinder on a multi-point lock?

Yes, if only the cylinder is faulty or you want to upgrade its security rating, the cylinder can usually be replaced independently of the gearbox.

Back to the Locks & Security Guide, or explore the full Knowledge Centre.