Lockmaster Multipoint Locks & Gearboxes

Lockmaster Multipoint Locks & Gearboxes Repairs & Replacement

At The Key Locksmith, we specialise in Lockmaster multipoint locking systems — diagnosing and repairing faults quickly, often without replacing your entire door.

📞 Call Gerry now on 07803 721 200
Available 24/7 across Orpington, Petts Wood, Bromley, Chislehurst, Swanley, Sidcup & nearby areas.

What is a Lockmaster multipoint lock?

Lockmaster multipoint locks are fitted to many uPVC, aluminium and composite doors.
They secure the door at multiple points along its edge, typically with:

• Hooks
• Rollers or mushrooms
• Deadbolts
• Central latch

These are all operated by a central gearbox, controlled by your handle and key.
When that gearbox wears or fails, you’ll notice stiffness, jamming, or the door not locking fully.

Common Lockmaster lock & gearbox problems

We regularly fix Lockmaster issues including:

• 🔧 Loose or floppy handle – internal spring or gearbox failure
• 🗝️ Key turns but lock doesn’t engage – gearbox failure or sheared spindle
• 🚪 Door won’t close or lock smoothly – misalignment or worn keeps
• ❌ Mechanism jammed solid – gearbox or full strip seized
• 🧊 Locks fine in summer, stiff in winter – expansion or alignment issues

If you’re noticing any of these, call before it fails completely — prevention is far cheaper than an emergency.

Our Lockmaster services

🔹 1. Lockmaster gearbox replacement

The most common repair. We replace just the gearbox (the working heart of the mechanism) rather than the full strip — saving time and cost.

• Like-for-like Lockmaster replacements where available
• Compatible retrofit gearboxes for obsolete models
• No damage to your door or furniture

🔹 2. Full multipoint lock replacement

If the full strip is damaged or discontinued, we can replace it with a modern, high-security Lockmaster or compatible system.

🔹 3. Alignment & adjustment

Many lock failures are caused by misalignment. We can realign the door, adjust hinges and keeps, and restore smooth operation.

🔹 4. Cylinder & handle upgrades

Upgrade your security while we’re there:

• 3-Star anti-snap cylinders
• Modern handles in chrome, brass, black, white & satin finishes
• Matching hardware for a fresh look

Why choose The Key Locksmith?

• ✅ Specialist experience with Lockmaster multipoint systems
• ✅ Independent, local locksmith based in Orpington
• ✅ Non-destructive entry wherever possible
• ✅ Honest advice – repair when possible, replace only when necessary
• ✅ No call centre – speak directly to Gerry
• ✅ Fast 24/7 emergency response

Do I need a new door, or just a new lock?

In most cases, a failed multipoint lock doesn’t mean you need a new door.
We’ll inspect your Lockmaster system, identify the exact fault, and replace only what’s needed:

• Gearbox
• Full strip
• Cylinder
• Realignment

We’ll give you clear pricing upfront — no hidden fees.

Signs your Lockmaster gearbox is failing

Watch for these early warning signs:

• Handle getting stiff or loose
• You have to push or pull the door to lock
• Grinding or crunching feeling when lifting the handle
• Door needs to be slammed to close
• Key is hard to turn or jams halfway

Fixing it early can save you from a full lockout.

Our process

1. Call or message us – describe the issue (photos help)
2. Fast response – especially for lockouts
3. Diagnosis – identify the exact Lockmaster model and fault
4. Repair or replace – usually in one visit
5. Test and tidy – smooth operation before we leave

FAQs about Lockmaster Multipoint Locks & Gearboxes

How do I know if my lock is a Lockmaster?
Look along the edge of your door for the brand name stamped into the metal strip — often “Lockmaster”, “GU”, or “ERA Lockmaster”. Send us a photo if unsure.

Can you replace just the gearbox instead of the whole lock?
Yes — the gearbox is the central unit behind the handle, and it’s usually the part that fails. Replacing just this section is quicker, neater and more affordable.

My door locks but the handle feels stiff. Should I worry?
Yes. Stiffness usually means the mechanism or alignment is under strain. Ignoring it can lead to a full failure and lockout.

Do you carry Lockmaster parts in stock?
We carry a wide range of Lockmaster and compatible gearboxes on the van for fast repairs. Rare models can usually be sourced within 24–48 hours.

What if my Lockmaster model is obsolete?
Many older models have compatible replacements. We can retrofit a modern gearbox or strip that works seamlessly with your door.

Can you open a jammed Lockmaster lock without damage?
Yes. We use professional, non-destructive techniques to open jammed locks safely and repair or replace the mechanism.

Why does my Lockmaster lock tighten up in winter?
Doors expand and contract with temperature changes. We can realign the door and keeps to relieve pressure and prevent long-term damage.

Do you fit anti-snap or high-security cylinders?
Yes — we recommend 3-Star TS007 anti-snap cylinders for maximum protection against forced entry and snapping attacks.

How much does a Lockmaster gearbox replacement cost?
Prices depend on the model and door type, but it’s usually far cheaper than replacing the door. We’ll always quote before starting work.

Will the repair affect how my door looks?
No — we use matching parts and finishes so your door looks just as it did, only smoother and more secure.

How long does a Lockmaster repair take?
Most repairs are completed in one visit, typically within an hour.

Do you guarantee your work?
Yes — all parts and labour come with a 12-month guarantee, and some components include longer manufacturer warranties.

Can you match my handles and finishes?
Yes — we can supply handles in chrome, brass, black, white or satin finishes to match your existing setup.

Do you offer maintenance for multipoint locks?
Yes — we provide maintenance and alignment services to extend the life of your lock and prevent future breakdowns.

Can you help if I’m locked out because of a Lockmaster failure?
Absolutely. We’re available 24 hours a day for emergency lockouts in Orpington and surrounding areas. We’ll gain entry and repair the issue immediately.

Book your Lockmaster repair today

Don’t wait until your multipoint lock fails completely.
A simple gearbox repair now could save you a costly emergency later.

📞 Call Gerry on 07803 721 200
or 📧 Get in touch via our contact form to book a Lockmaster multipoint lock or gearbox repair today.

The Key Locksmith –
Trusted local locksmith in Orpington, specialising in Lockmaster multipoint locks and gearboxes.
Fast, friendly and reliable service – day or night.