Why Multipoint Locking Systems Get Discontinued — And Why Repairs Sometimes Cost More

Multipoint locking systems are one of the most secure mechanisms used on modern UPVC and composite doors. They are designed to protect homes with multiple locking points along the frame, offering far better strength and resistance compared to a standard single latch.

But what many homeowners do not realise is that these systems do not stay the same forever. Manufacturers redesign, update, or discontinue their mechanisms every few years, and this can have a direct impact on repairs, replacement parts, and overall cost.

Why Manufacturers Discontinue Multipoint Systems

Most multipoint locking strips, gearboxes, and handle systems are produced in cycles of around 8–12 years. After this period, manufacturers usually introduce a new generation of the mechanism. This can happen for several reasons:

1. Updated security standards

Insurance companies and industry bodies are always pushing for stronger, more reliable door security. New tests, new certifications, and new burglary techniques all force manufacturers to redesign their locking systems.

2. Improvements in engineering and materials

Modern designs use stronger alloys, smoother gearboxes, and improved cam designs. Older systems eventually become outdated.

3. Changes in the door and glazing market

Door sizes, profiles, and brands change over time. When a manufacturer updates a door design, they also update the locking mechanism to match the new profile.

4. Commercial reasons

Just like with phones, appliances, and cars, companies want to push new versions. Over time, older parts are phased out, and locksmiths must use the newer compatible systems instead.

What Happens When Your Locking System Is Discontinued

When a multipoint strip or gearbox has been discontinued, the original part cannot be purchased anymore. This leads to one of the most common situations we see at AMZ Locksmith:

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You lift the handle and the door does not lock, or the gearbox snaps, and suddenly the part you need no longer exists.

In these cases, the locksmith must:

Identify the correct modern replacement

Remove the full old strip

Fit the new locking strip, gearbox, and sometimes new keeps

Re-align the entire door and frame

In many cases, replace the handles to match the updated system

Even when the door looks the same from the outside, the internal mechanism may require a completely new design.

Why Some Repairs Take Longer

A new multipoint strip is rarely identical to the old one. Even small differences — a few millimetres in the backset, a different cam style, or a change in the locking points — require adjustment.

This often means:

New keeps need fitting

The strike plate must be repositioned

The door needs fresh alignment

Some screw holes must be re-drilled

The handle positioning must match the new gearbox

This is why a discontinued mechanism repair can take longer than a simple cylinder change or latch adjustment.

Why the Cost Can Be Higher

When a system is discontinued, everything becomes part of an upgrade. Instead of replacing a single gearbox, you may need:

Full locking strip

Gearbox

Handles (if required)

Keeps or strike plates

Labour to adjust and align the door correctly

It is not just a “quick part swap”. It is a full re-installation of the door’s locking system.

For customers, understanding this makes a huge difference. Higher cost does not mean the job is overpriced — it simply reflects the amount of work, the complexity, and the price of modern upgraded hardware.

Why Manufacturers Update Every 10 Years

A full redesign every 8–12 years is standard in the industry. This cycle forces:

Better protection against current burglary methods

Compliance with updated British Standards

Stronger, smoother, more reliable mechanisms

Compatibility with modern door frames

Commercial evolution and new product lines

It is the same pattern you see in most industries, but in locksmithing it affects everyday door security.

When You Should Replace, Not Repair

If your multipoint system is stiff, grinding, failing to lift, or the gearbox has snapped, and the system has been discontinued, replacing the full strip is usually the safest choice.

Trying to repair an outdated mechanism can lead to repeated failures. A modern system brings smoother operation, better longevity, and improved security.

Final Thoughts

Discontinued multipoint locking systems can cause confusion and stress for homeowners, especially when parts are no longer available. But with the correct replacement strip, gearbox, and alignment, your door can work better than it ever did before.

A full upgrade is not just a repair — it is a long-term investment in your home’s security and reliability.