Leading the Way in Steel Security Door Manufacturing

As the leading manufacturer of steel security doors in London, Onexits is dedicated to providing top-quality products that help keep your home & family, business & clients safe. We understand the importance of security, and we’re committed to providing you with the best possible solutions for securing your home.

Our doors are designed and manufactured in London, using only the highest-grade materials and state-of-the-art production processes. Each door is custom-made to fit your specific requirements, ensuring a perfect fit and optimal security. Our doors are built to last and are designed to withstand even the most determined intruders.

Wide range with unique features and benefits

We offer a wide range of steel security doors, each with its own unique features and benefits. Our doors are available in a variety of styles, colors, and finishes, so you’re sure to find the perfect door to match your home’s décor. We also offer a range of locking mechanisms, including high-security locks, to ensure that your home is protected against even the most determined intruders.

Shouldn’t come at a cost

At Onexits, we believe that security shouldn’t come at the cost of style. That’s why our doors are designed to be both functional and aesthetically pleasing. Our doors are available in a variety of styles, from traditional to contemporary, and our team of experts can help you choose the perfect door to match your home’s décor.

Our one-stop-solutions for you

Portcullis Designs

Communal Entrance Doors provide solutions for high traffic, constant use doors in residential buildings, and include anti-vandal and access control features. A durable steel door, ideal for multi-purpose entrance and exit applications in flats, apartments, university accommodation as well as buildings of multiple occupation.

Pembury Design

Suitable for both internal and external locations, our doors are custom made for your building, and are suitable for new builds as well as replacement door.

Residential Entry Doors

Bespoke design and manufacturing to your requirements. Looks identical to a wooden door but made with British Steel.


Specially designed for plant rooms, bin stores, machinery areas, substations and other internal or external applications.

Gates and Grills

Custom design and manufacturing and automation of gates and grills. Perfect for communal areas that require access restrictions.

Including inhouse services

We are committed

We’re committed to providing you with the best possible customer experience, from the moment you get in touch with us until the moment your door is installed. Our team of experts is available to answer any questions you may have and to guide you through the process of selecting the perfect door for your home. Once you’ve made your selection, we’ll take care of the rest, from manufacturing to installation.

Client testimonials

I never realized how important a security door could be until I had one installed by Onexits. Not only does it look great, but I feel so much safer in my home now. I highly recommend Onexits to anyone who’s looking for top-quality security doors.

David / Harrow, London

I was so impressed with the professionalism and expertise of the Onexits team. From the moment I walked into their showroom to the moment my door was installed, I felt like I was in good hands. I highly recommend Onexits to anyone who wants a great product and a great experience.

Carol / Barnet, London

I did a lot of research before choosing Onexits for my steel security door, and I couldn’t be happier with my decision. The door is solid and secure, and it looks great, too. The team was very knowledgeable and helpful, and they made sure I was completely satisfied with my purchase. I would definitely recommend Onexits to anyone looking for a top-quality security door.

Mark T / Southwark, London

Discuss your project with us today

If you’re looking for the best steel security doors in London, look no further than Onexits. Contact us today to learn more about our products and to schedule a consultation with one of our experts. Protect your home and family with the best steel security doors on the market.


12 Brember Road

HA2 8AX, Harrow

London, UK

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