London's Anti-Snap Lock Upgrade Specialists
Standard euro cylinders are snapped, picked and bumped every day across London using tools anyone can buy online for £15. We replace yours with TS007 3-Star Diamond-rated cylinders — the highest rated anti-snap lock upgrade available — that burglars simply walk past.
The Hard Truth
There's no smashed glass. No alarm. Just someone at your door with a tool the size of a phone and 20 seconds to spare. Standard euro cylinders and rim cylinders without anti-snap protection are the primary target. Most homeowners never know it happened until it's too late.
of break-ins occur through a door, with the lock itself the primary target according to ONS data.
is all it takes to snap a standard euro cylinder using mole grips available for under £10 online.
is the average cost of a domestic burglary in the UK, not counting the things you can never replace.
of UK homes still have a standard euro cylinder with no anti-snap protection fitted as standard.
What Our Locks Defeat
Every diamond rated cylinder we fit is independently tested to defeat the actual methods burglars use. Not just the ones that look good on a spec sheet.
What We Fit
We fit two specific lock types, one for every front door in London. Both carry the UK's highest independent security rating for euro cylinder upgrade and rim cylinder upgrade work. No compromises, no upselling, no fuss.
Millions of UK front doors use a Yale-style rim nightlatch. If yours has not been upgraded, it is vulnerable to picking and bumping. We replace the cylinder with a Sold Secure Diamond-rated unit that resists every attack method burglars use — a complete locksmith security upgrade for timber doors across Greater London.
The standard euro cylinder is the most exploited lock in the UK, found in virtually every uPVC and composite door. Our 3-Star Diamond euro cylinder upgrade holds the highest dual certification in the industry. This is the lock burglars walk straight past — the definitive uPVC door security upgrade for London homes.
Prices include parts, fitting and disposal of your old cylinder. Final price confirmed on site after measuring your door. No hidden costs.
Choose your upgrade and pay your refundable £25 deposit securely via Square. Your slot is confirmed instantly. The remaining balance is collected on the day of fitting.
Why Choose Us
Every lock fitting job we carry out is fully covered by £1,000,000 public liability insurance. You're protected from the moment we arrive to the moment we leave your property.
We only fit locks that meet TS007 3-Star or Sold Secure Diamond standard. Every cylinder is independently tested and accredited. We never compromise on the grade we install.
Most anti-snap lock upgrade installations are completed in under an hour with zero mess. We measure, fit, test and hand you your new keys. Your home, restored and secured.
We cover the whole of Greater London, every borough, every zone. From Central London townhouses to suburban semis, if it is in the capital, we will secure it.
Got a question before booking your locksmith security upgrade? Message us directly on WhatsApp. No call centres, no hold music. A real person who knows locks, responding fast.
No hidden costs. No surprise fees on the day. We quote before we start and that is the price you pay. Your £25 deposit is fully redeemable against the job.
The Process
Select your lock type, Rim Cylinder or Euro Cylinder, and pay your £25 deposit via Square. Takes 2 minutes.
We contact you promptly after payment to confirm your preferred date and time. Same-day and next-day slots are available.
Our certified engineer arrives at your door, measures your lock, and fits your Diamond-rated anti-snap lock upgrade in under an hour.
We test the lock, hand you your new keys and issue your invoice. The £25 deposit is deducted from the balance. Done.
Detailed Booking
Select your upgrade below, fill in your details, pick a date via our live calendar, then pay your £25 refundable deposit to confirm.
For Yale-style nightlatches. Sold Secure Diamond-rated, anti-pick, anti-bump and anti-drill.
For uPVC & composite doors. Dual-certified TS007 3-Star and Sold Secure Diamond. Maximum protection.
Common Questions
Lock snapping is the most common method used to break into UK homes. A standard euro cylinder can be snapped in half using mole grips in under 20 seconds, exposing the cam mechanism and opening the door with no noise and no visible damage. It accounts for the majority of door-lock break-ins in London. A TS007 3-Star cylinder has a sacrificial snap section that breaks away while keeping the internal mechanism fully intact, making the attack useless.
If your door has a keyhole on the face of the door with a lever handle or multipoint locking, you have a euro cylinder. This is the most common type on uPVC and composite doors. If your door uses a Yale-style lock where the key goes into a small round barrel on the front of the door and there is a snib on the inside, you have a rim cylinder. If you are unsure, send us a photo on WhatsApp and we will identify it for you within minutes.
TS007 is the British Standard for door hardware security. A 3-Star rating is the highest level and is awarded to a cylinder that has passed independent testing against snapping, picking, bumping and drilling. It is recognised by the Loss Prevention Standards Board and accepted by most UK home insurers as an approved security standard. All euro cylinders we supply and fit carry the TS007 3-Star mark.
The majority of UK home insurers require locks to meet a minimum of TS007 3-Star or Sold Secure Diamond standard. Both products we fit meet or exceed these requirements. We recommend confirming with your specific insurer before booking, as policy terms vary. We are happy to provide documentation confirming the specification of the lock fitted upon request.
A single cylinder replacement typically takes between 20 and 40 minutes from start to finish. Our engineer will measure your existing cylinder, fit the correct size replacement, test the lock with all keys and leave the property clean and tidy. For multiple locks on the same property, we can usually complete everything in a single visit of under an hour.
Yes. The £25 deposit is fully refundable if you cancel at least 48 hours before your scheduled appointment. It is not an additional charge. It is deducted from your total on the day of fitting. If we need to cancel or reschedule for any reason on our side, you will receive a full refund with no conditions. See our Refund Policy for full details.
Yes, subject to engineer availability. Same-day and next-day slots are regularly available across Greater London. Once your deposit is paid, we will contact you promptly to confirm your appointment. If you need an urgent booking, message us on WhatsApp and we will do everything we can to accommodate you.
Yes. We carry £1,000,000 public liability insurance. Every job we carry out is fully covered from the moment our engineer arrives to the moment they leave. Documentation is available upon request.
Coverage Area
From Zone 1 townhouses to Zone 6 semis. If it is a London front door, we will secure it. Our diamond rated lock upgrade service operates across all 32 boroughs, North, South, East and West — the same day in most cases.
