How to Secure Locks and Feel Safe in Your House

Why Home Lock Security Matters

Your front door lock is the first line of defence against intruders. According to police statistics, the majority of domestic burglaries in London involve forced entry through the front or back door. A quality lock, properly installed, can make the difference between a secure home and a vulnerable one.

Many homeowners underestimate how easy it is for an experienced burglar to defeat a cheap or worn-out lock. Standard night latches without a deadlocking function can be opened in seconds using a simple credit card technique. Old euro cylinders without anti-snap protection can be snapped in under 30 seconds with a pair of pliers. The good news is that upgrading your locks is one of the most affordable and effective security improvements you can make.

Choose the Right Lock for Each Door

When selecting locks for your home, look for locks that meet British Standard BS 3621. This certification ensures a high level of security and is often required by insurance companies. Without BS 3621-rated locks, your insurer may refuse to pay out on a burglary claim, even if you have paid your premiums.

Different doors require different lock types. A solid wooden front door needs a different approach to a uPVC back door or a composite side entrance. Our guide to security lock types covers every option in detail.

Mortice Deadlocks

Mortice deadlocks are fitted within the body of the door, making them extremely difficult to attack from outside. A five-lever BS 3621 mortice deadlock is the gold standard for wooden doors. Brands such as Chubb, Union, and ERA all produce reliable models. Your front door should have both a mortice deadlock and a night latch for the best protection.

Euro Cylinder Locks

Euro cylinders are the standard lock type on uPVC and composite doors. If your euro cylinder is more than five years old, it almost certainly lacks anti-snap protection. Modern anti-snap, anti-bump, anti-pick, and anti-drill cylinders cost from around £25 for the part and provide dramatically better security. Look for cylinders rated to TS 007 three-star standard, or a one-star cylinder paired with a two-star security handle.

Night Latches and Rim Locks

Night latches (often called Yale locks) are surface-mounted on the inside of the door. They provide convenience - the door locks behind you when you leave - but should never be your only lock. Always pair a night latch with a mortice deadlock. Choose a model with a deadlocking function that prevents the latch from being pushed back with a card or thin tool.

Smart Locks

Smart locks offer keyless entry through a smartphone app, PIN code, fingerprint, or key card. They are ideal for families who frequently lose keys, landlords managing multiple tenants, or anyone who wants remote access control. When choosing a smart lock, select one that retains a physical key backup for emergencies. Leading brands include Yale Conexis, Samsung, and Nuki.

Tips for Better Home Security

Beyond choosing the right locks, several simple habits and additions can significantly improve your home’s security:

1. Upgrade old locks - If your locks are over 10 years old, the internal mechanisms may be worn and easier to manipulate. A professional lock change is quick and affordable.
2. Use multi-point locking - Multi-point systems engage three to five locking points along the door edge, making forced entry far more difficult than a single-point lock.
3. Never hide spare keys - Under doormats, in flower pots, and above door frames are the first places burglars check. If you need emergency access, leave a spare key with a trusted neighbour instead.
4. Install a door chain or limiter - A chain allows you to open the door partially to identify visitors without exposing yourself. Door limiters serve the same purpose with a more modern design.
5. Secure your windows - Window locks are just as important as door locks. Ground-floor and accessible windows should have key-operated locks. Sash windows need sash stops or dual screws to prevent them being forced open from outside.
6. Fit a door viewer - A wide-angle peephole lets you see who is at the door without opening it. This is especially important for vulnerable residents.
7. Use timer switches on lights - When you are away, automatic lights create the impression that someone is home. Smart plugs make this simple to set up.
8. Trim hedges near entry points - Overgrown hedges provide cover for burglars working on your door or windows. Keep the area around your front door clear and well-lit.

Check Your uPVC Door Security

uPVC doors are fitted in the majority of London properties. While generally secure when new, the locking mechanisms can deteriorate over time. Common problems include a stiff or drooping handle, a key that will not turn smoothly, or locking points that no longer engage fully. If you notice any of these signs, the gearbox or euro cylinder likely needs replacing. Our uPVC locksmith team can diagnose and fix these issues quickly.

When to Call a Professional Locksmith

If you are unsure about your home security, a professional locksmith can assess your property and recommend the best solutions. Common reasons to call include:

• Moving into a new property - You have no way of knowing who has copies of the existing keys. Changing the locks is the only way to be certain.
• After a break-in or attempted break-in - Compromised locks must be replaced immediately to prevent repeat incidents. Our break-in repair service responds within 25 minutes.
• Lost or stolen keys - If your keys have gone missing, anyone who finds them could potentially access your home.
• Visible wear on existing locks - Stiff operation, loose fittings, or visible rust are signs that your lock is no longer providing adequate protection.
• Insurance requirements - Your insurer may specify certain lock types. A locksmith can check compliance and upgrade where needed.

At City Locksmith London, we offer free security assessments and competitive prices on all residential locksmith services. Our locksmiths carry a full range of high-security locks in their vans, so most upgrades are completed in a single visit.