Just moved? Why you should change locks on a new house in London is a question we hear every day from nervous new homeowners across Acton and Wembley.
You should change your locks immediately because you have no way of knowing how many spare keys exist for your property. Previous owners, tenants, estate agents, and even old contractors could still have access. Replacing the locks ensures only you have entry and keeps your home insurance valid by meeting BS3621 standards.
Who holds the keys to your new home?
When you get the keys to a new flat in Harlesden or a Victorian house in Willesden, you are likely the last person in a long line of key holders. During the selling process, keys pass through many hands. We often find that sellers forget about the spare they gave a neighbour three years ago or the set left with a local cleaner.
In many London conversion properties, especially around Kensal Rise and Queen’s Park, locks might not have been changed for several tenancies. This means dozens of strangers could technically walk into your home. We recommend a fresh start. We can swap out your old cylinders or mortice locks quickly, giving you total control over who enters your space.
The estate agent and contractor factor
Think about the weeks leading up to your move. Estate agents in areas like West Hampstead or Camden often have multiple sets of keys for viewings. Contractors might have had access for repairs or gas safety checks. While most people are honest, keys can easily be lost, copied, or misplaced. Changing the locks is the only way to close that security loop for good.
Meeting UK insurance requirements
One thing many new residents in North West London overlook is their insurance fine print. Most UK home insurance providers insist that your external doors have locks that meet the BS3621 British Standard. If you have a break-in and the thief used an old key or bypassed a sub-standard lock, your insurer might refuse to pay your claim.
We check for the Kitemark symbol on your locks. If it isn’t there, we suggest an upgrade. For wooden doors, this usually means a 5-lever deadlock. For UPVC or composite doors in places like Park Royal or Shepherd’s Bush, we look for anti-snap Euro cylinders to prevent common burglary methods.
Comparing common lock types for London homes
Different properties in London require specific security measures. Here is a quick look at what you might find in your new home:
| Lock Type | Common Property Type | Security Level |
|---|---|---|
| Standard Euro Cylinder | Modern flats and UPVC doors | Basic (Vulnerable to snapping) |
| Anti-Snap / 3-Star Cylinder | New builds in Wembley/Acton | High (Recommended) |
| 5-Lever Mortice Lock | Victorian houses in Willesden | High (Insurance approved) |
| Night Latch (Yale Style) | Most London front doors | Medium (Best used with a deadlock) |
Upgrading your security from day one
Moving day is the perfect time to look at security upgrades. We don’t just “swap like for like” if your current setup is weak. If you have moved into a property with older UPVC doors in Neasden, the existing locks might be prone to “lock snapping.” This is a technique where burglars break the cylinder to get inside in seconds.
Our team at AMZ Locksmith often installs high-security cylinders like Ultion or ABS. These locks stay locked even if someone tries to snap them. We also help landlords in Harrow Road NW10 set up master key systems, allowing them to access multiple areas with one key while tenants have their own private entry.
The risk of “out of sight” doors
Don’t just focus on the front door. We often see burglars target side gates or back patio doors in areas like Cricklewood. These locks are usually lower quality because people forget about them. When we arrive to change your main locks, we can also check your garage and outbuildings to ensure the whole perimeter is solid.
What to expect from a professional locksmith
When you call us, you get a local, independent locksmith who knows the streets of North West London. We are DBS checked and members of the UKLA, so you know you are in safe hands. We don’t believe in hidden fees or “call-out charges” that jump up once we arrive.
- Non-destructive entry: If you are locked out during the move, we try to get you in without damaging the door.
- Fully insured: Our work is backed by professional insurance for your peace of mind.
- Local knowledge: We understand the specific crime trends in areas like Kilburn and Ladbroke Grove.
- Transparent pricing: You get a clear quote before we start any work.
Frequently Asked Questions (FAQs)
How much does it cost to change locks in London?
Prices vary based on the type of lock and the time of day. A basic cylinder swap is cheaper than replacing a complex multi-point locking system on a composite door. We provide clear, upfront quotes so you won’t face any surprises when the job is done.
Can I change the locks myself?
You can buy locks at a hardware store, but fitting them correctly is vital. If a lock is measured wrong or installed poorly, it can fail or leave your door vulnerable. A professional ensures the lock meets insurance standards and fits perfectly.
How long does it take to change the locks?
Most standard lock changes take between 30 and 60 minutes. If you have multiple doors or need a complex upgrade, it might take a bit longer. We work efficiently to get your new home secure without disrupting your moving day.
Do I need to change the locks if the house is a new build?
Yes. Even on new builds in areas like Wembley Park, many site workers and sub-contractors had access to the master keys during construction. It is always safer to install your own cylinders once you take possession.
What is a BS3621 lock?
This is a lock that has been tested against common theft techniques like drilling and picking. You can identify them by the British Standard Kitemark stamped on the faceplate of the lock. Most London insurers require these on all final exit doors.
Securing your property is the final step in making a house a home, and understanding just moved? Why you should change locks on a new house in London is the best way to start your new chapter safely.