The Ultion 3 Star Plus is the gold standard in high-security locks. It’s officially police preferred specification, and it’s been through every test you can imagine, forced entry, freezing, drilling, snapping, even sawing.

Inside is a solid molybdenum core, 25 denser than iron, surrounded by precision-cut pins and a dedicated retaining pin that activates the famous Double Lockdown Mode.

If someone tries to force the cylinder, it locks itself tighter. It’s clever, simple, and brutally effective.

Ultion has one of the highest Trustpilot ratings in the security industry. That’s not marketing talk, it’s from real homeowners and locksmiths who use these locks every day.

Every Ultion lock comes with the Ultion Key Control system, letting you manage who can cut keys and when.

Each key is registered to you. If you ever need to get more, you can log in securely and order directly: no unauthorised duplicates.

It’s one of the most practical parts of the Ultion system and another reason why it’s so approved by locksmiths across the UK.

You might not need a new door, just the lock itself. Common reasons to replace include:

• You’ve lost or misplaced keys

• You’ve moved home and want locks changed

• The barrel is worn or sticking

• You want to upgrade to the 3 Star Plus model

We’ll swap the cylinder, supply new locks and keys, and make sure everything runs perfectly before we leave.

Every Ultion lock we install is fully police preferred specification and comes with Sold Secure Diamond certification.

That means your insurance company will recognise it, and your property will meet the highest British Standards for domestic security.

We’ve tested plenty of locks over the years, very few come close to the extreme durability and resistance of Ultion’s extra strong molybdenum core design.

Ultion locks are approved by locksmiths, recognised by police, and certified under Sold Secure Diamond standards.

They meet every insurance requirement and outperform most standard cylinders by a long shot.

With their police preferred specification and extreme durability, you’re getting top-end protection without overcomplicating things.

What About Our TrustPilot Rating?

Our TrustPilot Rating is 4.3 out of 5 stars. Not bad eh?

Real Protection for Chelsea Homes

We’ve fitted these locks on everything from terraced homes to new developments and external doors on listed properties. Every time, they perform flawlessly.

For Businesses Too

Our security locks aren’t just for homes. We fit Ultion systems in offices, shops, and small commercial sites around London.

If you handle valuable stock or sensitive equipment, this level of protection is ideal. You can even link it with access control systems for complete oversight.

We don’t just fit new ones. If your lock’s stiff or a key’s stuck, we can repair, re-pin, or adjust it.

But if it’s been forced, it’s better to go for full replacement. That gives you extra protection and renewed peace of mind.

No hidden fees, no “from” pricing. You’ll get a fixed quote for the replacement, parts, and keys before we start.

And because we’re local, we can usually fit new locks the same day, especially for Chelsea and nearby postcodes.

We’ve built our reputation on straightforward service and real results. No fancy marketing, no upselling, just solid work.

That’s why our own business maintains a strong Trustpilot rating too, just like the Ultion brand we trust.

Need to replace your Ultion lock today? Call us now.

We carry the full Ultion range, including 3 Star Plus, Smart Lock, and security locks for every type of door.

Whether it’s your front door, business premises, or rental property, we’ll make sure it’s secure, compliant, and properly installed.

FAQs – Ultion Lock Replacement

Do you fit genuine Ultion locks only?

Yes. We only install genuine Brisant Secure products, never cheaper copies. We also install ABS locks, BS 3261 Locks, & locks for security doors.

What makes Ultion so special?

Each lock has an extra strong molybdenum core, 25 times denser than iron, making it incredibly tough to break or drill.

Is Ultion approved by locksmiths?

Absolutely. It’s one of the few brands widely approved by locksmiths across the UK and carries police preferred specification status.

How many keys come with a new lock?

Every replacement comes with three keys and access to the Key Control system.

Can you replace my locks today?

In most cases, yes. We’re based in Chelsea and cover the whole London area daily.