If you’ve ever had a break-in or know someone who has, you’ll know the first thing insurance companies ask: “What locks are on your door?”
It sounds small, but it’s a big deal. Most insurance companies require proper insurance-approved locks, and if your locks don’t meet British Standards, they might not pay out.
That’s where we come in. We fit and replace insurance approved locks in Chelsea and all across London, proper British Standard locks, not cheap ones from a DIY shop.
Give us a call on 07442137578 to discuss your door lock needs.
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Available 24/7 – in Chelsea and London
BS3261 locks Chelsea
New locks supplied and fitted by the best in the business
TS007 Cylinder Chelsea
Meet your insurance security standards
British standard locks Chelsea
Additional security and peace of mind
Basically, they’re locks that have been independently tested by the British Standards Institution (sometimes called the British Standards Institute, same thing). They check the lock against all sorts of attack methods: snapping, drilling, picking, bumping, you name it, and only the good ones pass.
These are the ones that count as “insurance approved.”
You’ll usually spot a little Kite Mark or a British Standard number stamped on the face plate of the lock. If it’s there, you’re covered. If it’s not, your home insurance might not count it.
We deal with a comprehensive range of these locks every day:
Each one’s been tested to make sure it’ll resist forced entry, keep you secure, and meet the insurance-approved security standard your provider expects.
A British Standard lock isn’t just a fancy label. It’s proof that your lock’s been certified, properly tested, and built to a serious security standard.
Every British Standard lock goes through checks by the British Standards Institution, making sure it can handle forced entry and attack methods used by burglars.
You’ll find British Standard locks on the front door of most secure homes and business properties around Chelsea and London.
Typically, you find that they come with security features such as:
You can think of it like a guarantee, when you see that little Kite Mark, you know the lock’s up to scratch (just be sure to get your new locks installed by professional locksmiths!).
Get in touch to get your new BS locks installed by a reliable locksmith!

If you’ve got a wooden door, it probably uses a mortice lock. These are the classic five-lever designs everyone recognises.
They’re solid, they’re strong, and when you fit a proper BS3621 mortice lock, your insurance company will be happy.
The five levers make it harder to pick, and the bolt is built to resist cutting or sawing.
We fit all types of mortice locks in Chelsea, including deadlocks and sash locks, and every one we fit is insurance approved.
Don’t wait for it to fail completely: that’s when you end up calling an emergency locksmith in the middle of the night.
Sometimes it’s just easier to swap the old door lock out, start fresh and upgrade.
We offer full lock replacement services across Chelsea, fitting only insurance-approved locks that comply with British Standards.
Our professional locksmiths carry all the new locks with them, so you don’t have to wait for parts. We install a range of door locks with a variety of security features:
You’ll always get a proper job done. No quick fixes, no cheap shortcuts, no sub-par door locks.


We’re not a call centre. We’re a small team of professional locksmiths based right here in Chelsea. We work on properties all over London, fitting approved door locks, helping after break-ins, and keeping homes secure.
Our goal is simple: make sure your door locks comply with British Standards, keep you safe, and make your insurance company happy.
Every insurance-approved lock we fit has been independently tested for safety and protection. They’ve got all sorts of built-in tricks to stop burglars.
These locks are built to resist everything, from being picked through to forced entry.
And, when these locks are installed properly by a fully trained locksmith, they’ll last for years. We know that we’re delivering value for money with this service to our customers.
You might wonder why insurers require specific locks. It’s simple — they want proof that your home security meets a certain security level.
If your door lock doesn’t meet British Standards, your home insurance could be at risk. Even if you’re careful, you could lose money if they decide your locks weren’t approved locks.
So yeah, it’s worth checking. Most insurers specifically mention BS3621 or TS007 in their policies. If you’re not sure, just ask us, we’re happy to provide advice, its all part of the service we offer. We’ll check your locks for you, tell you exactly what you’ve got, and if needed, fit a proper insurance-approved replacement – now that’s what we call great service.

We’ve been delivering solid work to local clients for years, deterring theft and enhancing security though our lock installation.
People like that we’re straight with them. No waffle, no pushy sales. Just proper locksmith work done right. Good, old-fashioned service.
So yeah… don’t wait until after a break-in or claim dispute. Call Chelsea London Locksmiths now, and we’ll get your approved locks sorted the right way.
They’re locks that have passed tests by the British Standards Institution and meet British Standards for security. These are the locks insurance companies require to protect your property and keep your home insurance valid.
Yes, as long as they’re BS3621 five-lever mortice door locks. You’ll find them on timber-framed doors and some older external doors. They’re tested, certified, and count as insurance-approved locks when properly installed.
Yes, all of the professional locksmiths we use are fully trained, vetted and insured. We come highly recommended by clients who can attest to the quality of our work.
