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Security Upgrades

Lock Replacement & Security Upgrades — Built Around Your Property

Whether you're upgrading after a move, improving security after a near-miss, or simply replacing a worn lock — we supply and fit only what your property genuinely needs.

Security Upgrades

Lock replacement — the right lock for your door and your risk level

Changing the locks when you move into a new property is one of those jobs that’s easy to put off and shouldn’t be. You have no idea who has copies of the existing keys — previous tenants, contractors, the estate agent, whoever they passed spares to. Swapping the cylinders is a quick job and genuinely worth doing on day one.

Lock snapping is one of the most common techniques used on uPVC and composite doors. A standard euro cylinder offers almost no resistance to it — a snap tool breaks it in under a minute. Anti-snap cylinders are designed to break at a designated sacrificial point before the internal mechanism is compromised, stopping the attack before it works. We fit them as standard on any cylinder replacement.

We stock Ultion, Avocet ABS, ERA, and Yale cylinders alongside British Standard five-lever mortice locks, and can complete most replacements on the first visit, with a clear explanation of what’s going in and why.

Anti-snap cylinder upgradesA significant improvement over standard cylinders, defeating the most common forced-entry technique used by burglars.
British Standard 3621-compliant locks for home insurance complianceEnsures your locks meet most insurers' minimum requirements, protecting your cover.
High-security cylinders: Sold Secure Diamond ratedFor properties requiring maximum protection, independently tested to the highest standard.
5-lever BS mortice deadlocks for wooden doorsThe correct solution for traditional timber doors requiring insurance-compliant security.
Cylinder sizing to fit your existing door with no drillingWe measure and source the exact size needed for a clean, professional fit.
Supply and fit — we bring the right partsNo need for you to source anything. We carry stock and can complete most replacements on the first visit.
Ultion Yale ERA Avocet ABS Mul-T-Lock Supra Brisant Secure
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Lock Replacement
Common Questions

Frequently asked questions

Lock snapping is one of the most common methods used on uPVC and composite doors. A snap tool is applied to the protruding part of a standard euro cylinder and it breaks in seconds, giving access to the cam. Anti-snap cylinders break at a designed sacrificial point that leaves the internal mechanism protected. It’s a straightforward upgrade and worth doing on any external door.
Yes. You have no idea who has copies of the keys — previous owners, tenants, contractors, estate agents, whoever they passed spares to. Changing the cylinders on all external doors is a quick job. Most standard homes take under an hour.
Possibly, yes. Most home insurance policies require external locks to meet British Standard 3621 as a minimum. If yours don’t, a claim following a burglary could be reduced or refused. Worth checking your policy wording. We can tell you whether your current locks meet that standard and what the options are if they don’t.
For uPVC and composite doors, yes — euro profile cylinders pull straight out and a new one goes in without touching the lock body. For traditional mortice locks it depends on the specific lock, but re-keying or replacing the cylinder separately is often possible. We’ll check and advise.
Depends on how many locks and what type. Call us with the details and we can usually give you an estimate over the phone.

Need a locksmith right now?

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07500 582013
Service Area

Areas we cover for this service

We provide this service across Essex and East London. Click your area to see local information.