How to Check If Your Lock Is Vulnerable
Simple self-assessment tests you can do right now without any tools.
Maximum Protection Available Now
Your Lock's Hidden Weakness. Fixed.
Standard euro cylinders can be snapped in under 30 seconds—it's the most common break-in method in the UK. Anti-snap cylinders are specifically designed to resist this attack, keeping your home secure even when targeted.
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Defend against the UK's most common break-in. See how it works ↓
The Hidden Threat
The 30-Second Break-In You've Never Heard Of
Lock snapping is quick, quiet, and requires no skill. Most homeowners don't know their locks are vulnerable until it's too late.
Standard Locks Are Vulnerable
Most homes have basic euro cylinders that snap with a simple tool. No skill needed, no noise, no evidence of forced entry. The cylinder breaks, the door opens, and they're inside your home in seconds.
uPVC Doors Are Prime Targets
Composite and uPVC doors often come with cheap standard cylinders. The door itself is strong—but the lock is the weak point. Burglars know this and specifically target these doors.
"Secure" Doesn't Mean Protected
Your multipoint locking system is only as strong as its cylinder. Three-point, five-point, seven-point—none of it matters if the cylinder can be snapped. The whole mechanism is defeated in one attack.
It's the UK's Most Common Method
Lock snapping accounts for a significant percentage of UK home break-ins. Police forces nationwide have issued warnings. Burglars share techniques online—they know exactly which doors to target.
Your Neighbours May Already Know
Talk to any estate in the UK and you'll find victims. This isn't rare—it's routine for opportunistic thieves. Once one home is hit, others in the area often follow.
Insurance May Require Upgrades
Some policies require BS-rated locks on external doors. If your locks don't meet the standard, a burglary claim could be rejected—even if you've been paying premiums for years.
It Happens Day and Night
Burglars don't just work at night. Many snapping attacks happen in broad daylight when you're at work. The attack is so quick that neighbours rarely notice anything suspicious.
Your Current Lock Looks Fine
That's the problem. You can't tell by looking whether a cylinder is snap-resistant or not. Standard and anti-snap cylinders look almost identical from outside. The only way to know is to check—or upgrade.
Why Choose Us
Not All Anti-Snap Locks Are Equal
Quality matters. Cheap "anti-snap" locks often aren't—we fit genuinely secure cylinders.
| What You Get | Trulox | Budget Locksmiths | DIY Kits |
|---|---|---|---|
| Genuine BS Kitemarked Cylinders | ? | ? | |
| TS007 3-Star Options | ? | ||
| Correct Sizing for Your Door | ? | ||
| Insurance Documentation | |||
| DBS Checked Installer | ? | — | |
| Lifetime Warranty Available | |||
| Full Multi-Point Compatibility Check | ? |
Our Process
Upgrading Your Security
Quick, professional installation. Most homes upgraded in under an hour.
Quick Assessment Call
We ask about your doors and current locks. How many doors? Euro cylinders? Any specific concerns? This helps us recommend the right solution and give you an accurate quote.
~2 minutesOn-Site Inspection
We check your current cylinders, measure precisely, and verify compatibility with your multipoint mechanism. Correct sizing is critical—we never guess.
~5 minutesOptions & Pricing
Clear explanation of cylinder grades and what each offers. 1-star, 3-star, different brands—we explain the differences so you can make an informed choice. No pressure, no upselling.
~5 minutesProfessional Fitting
Precision installation ensuring the cylinder works perfectly with your mechanism. We test smooth operation in all modes—locked, unlocked, night latch—before considering the job done.
10-15 min per doorSecurity Confirmed
Your door now resists the UK's most common break-in method. New keys handed over, documentation provided for your insurer, and peace of mind restored.
Protected Technology
How Anti-Snap Cylinders Protect You
Engineered security features that defeat common attack methods.
Sacrificial Break-Off
The cylinder has a designed weak point outside the door. If an attacker snaps it, only the outer section breaks away—the secure inner section stays in place, keeping your door locked.
Anti-Pick Pins
Hardened security pins that resist manipulation tools. Unlike standard pins, these are designed to confuse and frustrate picking attempts. Multiple security features working together.
Anti-Bump Design
Special pin configuration prevents bump-key attacks—where a modified key and sharp tap defeat standard locks. Our cylinders use pin designs that make bumping ineffective.
BS Kitemark Options
British Standard certified cylinders for maximum security and insurance compliance. The Kitemark is your guarantee that the product has been independently tested and meets rigorous standards.
Correct Sizing
Cylinder length is critical. Too long and it protrudes, making snapping easier. Too short and it won't engage properly. We measure precisely for your specific door—no guesswork.
3-Star Rated Available
TS007 3-star cylinders offer the highest rating for residential security. They combine anti-snap, anti-pick, anti-bump, and anti-drill features in one product. Ultimate protection for your home.
Full Service
What's Included in Your Upgrade
Complete security upgrade service, not just a part swap.
Cylinder Assessment
Full inspection of your current cylinders and mechanism to ensure we fit the right replacement for your specific door.
Old Cylinder Removal
Careful removal of your existing cylinder without damage to the door or mechanism. We handle even corroded or seized cylinders.
Quality Anti-Snap Fitted
Precision installation of your new cylinder. Tested thoroughly to ensure smooth operation in all modes before we consider the job complete.
Full Key Set
Typically 5 keys included with quality cylinders. Enough for family members without needing extra copies cut.
Function Testing
Thorough testing of lock, mechanism, and door operation. We don't leave until everything works perfectly.
Insurance Certificate
Documentation confirming your upgrade for your insurer. Cylinder brand, rating, and installation date—everything they need.
What Our Customers Say
Real stories from homeowners who upgraded their security.
"After a neighbour was burgled through their uPVC door, I called Trulox immediately. They upgraded all three of my external doors in under an hour. The peace of mind is worth every penny."
Verified customer
"Didn't even know lock snapping was a thing until I saw a video online. Called Trulox the next day—they explained everything clearly and fitted anti-snap cylinders same day. Sleep much better now."
Verified customer
"Insurance renewal asked if I had BS-rated locks. I didn't. Trulox fitted 3-star cylinders and gave me documentation for the insurer. Sorted properly, no hassle."
Verified customer
Common Questions About Anti-Snap Locks
Understanding your security upgrade.
What is lock snapping and how does it work?
Understanding
Lock snapping exploits a weakness in standard euro cylinders. Using a simple tool, the cylinder is snapped at its weakest point, exposing the mechanism and allowing the door to be opened. It takes under 30 seconds, requires no skill, and leaves little evidence.
How do I know if my current locks are vulnerable?
Assessment
If your uPVC or composite door has a standard euro cylinder that's never been upgraded, it's likely vulnerable. Most doors installed before 2016 came with basic cylinders. The only way to be certain is to have an expert check—or upgrade to be safe.
What's the difference between 1-star, 2-star, and 3-star cylinders?
Ratings
TS007 ratings indicate security level. 1-star cylinders offer basic protection. 3-star cylinders (or 1-star cylinder + 2-star handle) meet the highest standard for residential security. We recommend 3-star for maximum protection and insurance compliance.
Do anti-snap locks work with my existing door?
Compatibility
Yes. Anti-snap cylinders are direct replacements for standard euro cylinders. They work with your existing multipoint locking mechanism—we simply swap the cylinder. No modifications to your door are needed.
Is lock snapping really the most common break-in method?
Reality Check
In areas with uPVC and composite doors, yes. It's quick, quiet, and leaves insurance companies questioning whether it was even a break-in. Police forces across the UK have issued specific warnings about this method.
Will anti-snap cylinders help with my insurance?
Insurance
Many insurers require BS-rated locks on external doors. Anti-snap cylinders with TS007 3-star ratings meet this requirement. We provide documentation confirming your upgrade for your insurer.
How long does an anti-snap upgrade take?
Time
A single cylinder replacement takes about 10-15 minutes. If you're upgrading multiple doors, we can usually complete a typical home in under an hour. Same-day service is often available.
Can burglars still break in with anti-snap locks?
Honest Truth
No lock is completely burglar-proof, but anti-snap cylinders significantly increase the time and difficulty. The goal is to make your door harder to breach than others—burglars typically move on to easier targets.
Should I upgrade all my doors or just the front?
Priority
We recommend upgrading all external doors with euro cylinders. Burglars often target back or side doors that are less visible. Front, back, and any door leading to a garage should all be protected.
What warranty comes with anti-snap cylinders?
Investment
Quality cylinders come with manufacturer warranties, typically 10 years to lifetime depending on the brand. We also warranty our fitting work—if there's ever an issue with installation, we return to fix it.
Our Guarantee
Security You Can Trust
Genuine products, professional installation, backed by warranty.
Genuine BS-Rated Products
We only fit genuine, British Standard certified cylinders from reputable manufacturers. No cheap imitations, no "anti-snap style" products that don't actually protect you.
Professional Installation
Correct fitting is essential. We measure precisely, install carefully, and test thoroughly. A good cylinder fitted badly offers reduced protection—we never cut corners.
Insurance Documentation
Full documentation for your insurer: cylinder specifications, British Standard ratings, installation date, and installer details. Everything they need to update your policy.
Lifetime Warranty Available
Quality cylinders come with manufacturer warranties up to lifetime cover. Combined with our workmanship guarantee, your upgrade is protected for the long term.
Expert Advice
Learn More About Lock Security
Understanding the threats helps you make informed decisions.