24/7 commercial lock change and replacement services in London. Fast, secure and insurance-compliant lock upgrades for offices, shops and industrial sites.

24/7 commercial lock change and replacement services in London. Fast, secure and insurance-compliant lock upgrades for offices, shops and industrial sites.

  • Same-day service available

  • No call-out fees

  • DBS-checked commercial locksmiths

  • Clear pricing before work starts

Commercial Change Door Lock Services - Watchdog Locksmiths London

Secure your business properly

Changing door locks isn’t just about convenience — it’s about controlling access, protecting staff and stock, and meeting insurance requirements.

Whether you run a shop, office, warehouse, school, managing agent portfolio, or commercial unit, we can change locks quickly and correctly across London, the Home Counties, and up to Huntingdon.

Our commercial lock change services

uPVC door lock changes

  • Replace uPVC multipoint locks (jammed, worn or broken)

  • Change uPVC cylinders without replacing the full mechanism

  • Resolve common issues like stiff handles or doors not locking properly

  • Suitable for shops, offices, back entrances and staff doors

Commercial door lock replacement

  • Change locks on timber, metal and composite doors

  • Replace euro cylinders, mortice locks, night latches and deadlocks

  • Master key–ready setups if required

  • Locks changed after staff turnover, lost keys or security concerns

Lock changes after incidents

  • Rapid lock replacement after break-ins or attempted entry

  • Secure doors where keys may have been copied or stolen

  • Temporary solutions available if parts need ordering

Commercial Lock Change Services We Offer

🔄 Lock Changes After Staff Turnover or Tenant Moves

We replace or rekey locks when keyholders leave your business or a new tenant moves in — protecting your assets and ensuring only authorised people have access.

🛠 Emergency Lock Replacement

Lost keys? Attempted break-in? We provide 24/7 emergency response and can often complete replacements in a single visit.

🧰 Lock Upgrades for Insurance Compliance

We install British Standard (BS3621 or TS007 3-star) locks that meet insurance requirements and improve resistance to forced entry.

🔐 Digital, Coded & Keyless Lock Replacement

We replace outdated digital or mechanical entry systems with modern, easy-to-manage solutions — including fob, keypad and app-based access.

🔩 Shutter Locks & Commercial Hardware

We carry and fit robust locks for roller shutters, aluminium doors, and shopfronts — including anti-snap and tamper-proof solutions.

ExcellentGoogle star 1Google star 2Google star 3Google star 4Google star 54.9506 reviews
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Excellent506 reviews
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Steve Miley profile picture
Steve Miley
2 days ago
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Excellent service from Vatsal - efficient booking arrangements, clear re costs, efficient and effective lock change and such a friendly nice guy to have in the house. Will definitely use again.
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Terrell Cox profile picture
Terrell Cox
7 days ago
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We accidentally locked ourselves out of our flat at 2:30 in the morning. Vatsal came right over and quickly got us back in. No damage to the door. Very courteous and great communication. He was a life saver. Highly recommend
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ryan porter profile picture
ryan porter
24 days ago
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He arrived very quickly and managed to open my car with the keys locked inside. Would highly recommend!
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A D profile picture
A D
25 days ago
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Valsai what a life saver. I walked out of my house and pulled the front door closed and literally milli-seconds later realised that I had left my door keys on the side and now I've locked myself out great. Panic set in but I then remembered seeing a locksmith near were i live on Greenford road and (luckly i had my car keys at the time) so I drove down to thier office as I couldn't remember thier name but had driven past thier offices hundreds of times, saying good to know, but shouldn't need to use them!!!. Well today was that day. So I dropped in, I didn't have to wait long, and was greated by a helpful staff member who talked me through the booking process via WhatsApp, essy. I booked a locksmith via thier WhatsApp in the shop. it was confirmed in circa 5-10mins, I then drove back home 20mins later arriving back to be greated by one of the locksmiths waiting. He greated me as Valsai and talked me through the various options he had for trying to get me back in with the very, very, very last distructive option of having to drill out the lock, which neither of us realy wanted. which was a blessing to hear as if you've ever watched rogue traders you'll understand. This company in my eyes are 100% not that, nice feeling to have when your in such a position what ever time of the day. Valsai, was chatty and sincere about his work and reassuring to me that he was determined to get the lock open in under 30mins, which he did which was a relief. Prior to paying he offered me an option to purchase one of their upgrade serial linked locks, which if you did what I did, all you need do is go down to thier office with ID and the key reference and they will cut you a replacement key based, which is less than it cost for an emergency call out, to me value for money. I declined as funds a bit tight now more so due to this issue, but he wasn't pushing for a sale, he did advise if I changed my mind I could just go back to the office and pick one up there. Definitely thinking about it now, its cheaper than an emergency call out even if its in norm working hours.. Again as I have already said, these guys are definitely 5 star and actually come across as all genuine locksmiths...One thing I've learnt from today is check out registered locksmiths in your area who offer the registered lock system because it will save you money in the long run, even if you never need to call them ou, its peace of mind, thanks.
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Alina Naidu profile picture
Alina Naidu
34 days ago
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Our bathroom door was jammed shut due to a faulty lock. Called Watchdog and they came within 30 minutes. Vatsal was brilliant- efficient, honest, tidy and got us into the bathroom! They actually answered the phone which was something I didn't find when calling around (needing to leave messages and wait for someone to respond when you're in need is frustrating!). I was also able to communicate via whatsapp which was very helpful. They were upfront about their pricing and it was reasonable. If I need a locksmith again I'll definitely call Watchdog. :)
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Nikesh Chauhan profile picture
Nikesh Chauhan
35 days ago
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Top notch
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Sinead Murphy profile picture
Sinead Murphy
35 days ago
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Super service from Elie at watchdog locksmiths. Very accommodating and transparent regarding the cost of repairs. 10/10
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Christopher Roscoe profile picture
Christopher Roscoe
39 days ago
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Vatsal came and fixed the locks on two doors. One required a mechanism change and the other a new lock. All the work was completed without fuss. He gave advice and was really helpful. I’d definitely recommend d them.
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Fahad Sheikh profile picture
Fahad Sheikh
43 days ago
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Vatsal did a really good job at changing the locks and great advice on what locks offer top security. Highly professional and extremely efficient. Recommend these guys!
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Anastasia Est profile picture
Anastasia Est
43 days ago
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I had some problem with the door mechanism. I tried getting in touch with other locksmiths but nobody turned up. Happened to get through watchdog locksmiths on a whatsapp number. Quick and easy reply, advised me properly and booked appointment instantly. The time slot given to me was 8.30 am to 9.30 am and the technician Vatsal was very punctual right at 8.30am. He was friendly and helpful and in no time he fixed the door lock. Watchdog locksmiths are reliable, priced reasonably and quick in providing services.

What we do:

  • 24/7 Emergency Lockouts
    Get back in fast, without damage to your doors.
  • Lock Repairs & Replacements
    We fix or upgrade locks on doors, windows, garages, and more.
  • New Lock Installations
    Insurance-compliant locks fitted by experts using BSI-approved hardware.
  • Key Cutting & Keyed Alike Systems
    Reduce your keyring and improve convenience
  • Burglary Repairs & Security Reinforcements
    Restore your peace of mind after a break-in.
  • Digital & Smart Lock Fitting
    Modern access control solutions for the smart home.
  • uPVC Door & Window Lock Repairs
    Common issues resolved quickly with minimal disruption.
1

Arrival in 30 Minutes

We’re local, so we’re fast.
2

No Call-Out Fees

You only pay for the work we do.
3

DBS-Checked Professionals

Trusted locksmiths you can feel safe letting into your home.
4

Fixed Quotes, No Surprises

Transparent pricing with no upsells.
5

BSI 3-Star Cylinder Locks

The highest rated anti-snap lock on the market.
6

12-Month Guarantee

All parts and labour are backed by warranty for your reassurance.

How do I know if I need to change my commercial locks?

You should consider a lock change if you’ve experienced a break-in, lost keys, employee turnover, tenant handover, or outdated locks that may not meet modern insurance requirements.

What types of locks do you replace?

We replace a full range of commercial locks: euro cylinders, mortice locks, digital keypad locks, shutter locks, and high-security deadlocks — always using insurance-approved components.

Can you replace locks outside of normal business hours?

Yes. We operate 24/7 for emergency lock replacements, with fast response across London and the surrounding areas. Ideal for break-ins, evictions or lost keys.

Can you upgrade locks to meet insurance standards?

Absolutely. We install BS3621 mortice locks, TS007 3-star cylinders, and PAS24-rated solutions that meet or exceed commercial insurance standards.

Do I need to change the whole lock or can you rekey it?

That depends on your lock type and security needs. In many cases, rekeying is a cost-effective option, but we’ll advise on the best route during our on-site assessment.

What businesses do you typically work with?

We work with offices, retail stores, warehouses, healthcare facilities, and landlords of commercial properties — from single-site operators to multi-location portfolios.