We know that keeping your home secure is a top priority, and that's where our UPVC door lock services in Colindale and NW London come in. Our expertise with multipoint gearbox and cylinder solutions guarantees your modern composite doors are protected. Whether it's a gearbox issue or a cylinder upgrade, our skilled technicians are ready to assist. Wondering about how we can enhance your door's security? Here's what makes our service exceptional.
Call 020 3856 4350
To understand how a UPVC or composite door lock works, it's all about the multipoint locking system. This isn't just a single lock; it's a coordinated system that guarantees security.
The key component, the euro cylinder, is where our key turns. It drives the center case gearbox, which activates hooks, rollers, and deadbolts along the door's edge.
In NW London, particularly in areas like Colindale and West Hendon, these systems are common. Our post-2010 composite doors often come with factory-installed Yale Lockmaster or Mila Master multipoint systems.
Meanwhile, the retrofitted UPVC doors in older suburbs like Hendon and Edgware are reaching the end-of-life phase for their original gearboxes.
We're prepared for this. Stocking the four UK-dominant brands – Mila Master, GU Ferco Secury, Fuhr Multisafe, and Yale Lockmaster – means we often achieve a first-time fix, guaranteeing your door's security remains uncompromised.

Across NW London, five common UPVC door lock failures frequently challenge homeowners. These issues can disrupt daily life and compromise security.
Here are the most frequent problems we encounter:
We carry parts to fix these in one visit, ensuring your home remains secure.
For a quote on the call, ring 020 3856 4350.
Why choose between a multipoint gearbox repair and a full strip replacement? It's a question many homeowners face when dealing with UPVC door issues in NW London.
We understand the decision can be tricky, but it boils down to a few key factors.
Repairing a multipoint gearbox is often more cost-effective and quicker. If the problem is isolated to the gearbox, we can fix it without the hassle of replacing the entire strip. This option minimizes disruption and gets your door functioning smoothly again.
On the other hand, a full strip replacement might be necessary if there's extensive wear or multiple components are failing. While it's a bigger investment, it guarantees long-term reliability.
Ultimately, we'll assess the situation and provide expert advice tailored to your specific needs, guaranteeing you make the best choice for your home security.

Fixed quote on the call — no callout fee. BS3621 + TS007 3-Star compliant locks fitted same day across Colindale, Hendon, Edgware, Mill Hill and wider NW London.
The most common fault is a worn multipoint gearbox — the door won't lock or unlock properly, especially on 10-15 year old side-and-back doors in Hendon and Edgware, or newer Colindale composite doors with heavy daily use.
Yes — we stock common Mila and GU Ferco gearboxes for a same-visit swap where the mechanism itself isn't sheared.
No callout fee. Fixed quote before we start.
If your current cylinder isn't already TS007 3-Star anti-snap rated, yes — it's an efficient moment to upgrade both together.
A gearbox swap is typically 30-60 minutes. We carry parts for 80% of common NW London UPVC and composite door fittings in the van.
Upgrading to a 3-Star anti-snap cylinder is essential for enhancing the security of your UPVC or composite doors. A common vulnerability is a cylinder that protrudes more than 3mm beyond the handle, making it susceptible to snapping. We measure the cylinder length from the center screw to guarantee a flush fit, typically using sizes like 35/35, 40/35, or 40/40 mm for suburban retrofits, and 45/50 mm for modern composites in Colindale and West Hendon.
Here's a quick reference table for cylinder sizing:
| Door Type | Common Sizes (mm) | Vulnerability Risk |
|---|---|---|
| Suburban UPVC Retrofit | 35/35, 40/35, 40/40 | Moderate |
| Modern Composite | 45/50 | Low |
| Side-and-Back Doors | 35/35, 40/35 | High |
| Entry-Grade Factory | Various | Very High |
| Custom Measurements | As Needed | Minimal |
A correctly sized 3-Star cylinder meets most home insurers' security requirements. Satisfaction guaranteed.
When securing your home, especially in areas like Colindale and West Hendon, choosing the right composite door service is essential.
We know the unique needs of these new-build estates where modern composite doors are prevalent. Our team is ready to guarantee your doors are fitted with the best in security, including TS007 3-Star Kitemark anti-snap euro cylinders.
Our service covers everything from installation to maintenance, ensuring your doors remain secure and functional.
With our expertise, we can handle the most common issues swiftly, thanks to our stocked van with leading multipoint gearbox brands like Mila Master and Yale Lockmaster.
We also offer smart-lock options, such as the Yale Conexis L2, for those looking to upgrade their door technology.
All our work meets the highest standards, providing assurance that your home is protected.
Let's secure your home together.
Reach us on 020 3856 4350 during opening hours.

Although many homes in Hendon, Edgware, and Kingsbury feature UPVC doors installed in the 1990s, ensuring these retrofits meet today's security standards is essential.
We've found that many of these doors need updated locking systems to provide the best protection for your home. That's where we come in.
Our team specializes in retrofitting these older UPVC doors with top-tier security solutions like TS007 3-Star Kitemark anti-snap euro cylinders, ensuring they're resistant to snapping, bumping, and picking.
We carry the leading gearbox brands such as Mila Master and Yale Lockmaster in our vans, enabling us to achieve a first-time fix on most calls.
We know how important it's to maintain the aesthetic of your door while upgrading security.
Our solutions are designed to blend neatly, offering both safety and style.
Let's help you bring your 1990s UPVC doors up to today's standards with ease and efficiency.
Every installation comes with our satisfaction guarantee, ensuring security for our customers. We're delivering outstanding service, whether we're fitting a BS3621-rated mortice deadlock or a TS007 3-Star Kitemark anti-snap euro cylinder.
Our guarantee covers both the quality of the lock and the professionalism of our installation. We promise that your lock will meet or exceed UK insurance specifications, providing not just security but also compliance.
If you encounter any issues with the installation, we'll promptly address them at no extra cost. Our team is equipped to handle most issues on the first visit, thanks to our well-stocked vans.
Your satisfaction is our priority. We stand behind our work, ensuring that each installation offers the security and reliability you expect. Expect us to keep your home safe with locks that are built to last.
As a fully insured local locksmith, we carry public liability cover, and a certificate is available on request.
For immediate help, phone 020 3856 4350.