
The Safety Letterbox Company is the UK’s leading manufacturer of secure mail and parcel delivery systems. For over four decades, we have delivered award-winning expertise across all sectors of the built environment. We design and manufacture high-quality, compliant, and innovative solutions that focus on safety, efficiency, and reliability.
Our products include 2-hour Fire Rated, bespoke design-led, and Secured by Design certified solutions. This range meets the needs of Build-to-Rent (BTR), social housing, private residential, post rooms, and commercial projects. We adapt our systems to suit every environment and every type of client. By enhancing security and future-proofing delivery systems, we continue to set new standards worldwide.
We also proudly manufacture the high-security Secure Information Box (SIB). This product helps buildings comply with the Fire Safety (England) Regulations 2022. The SIB is independently tested and certified by Secured by Design to the STS205 BR2 Standard. It reflects our ongoing commitment to safety, innovation, and compliance.
Our History
Company Inception and Early Innovation
In 1986, The Safety Letterbox Company was started by Ian Brown, who identified a need for a mailbox to be fitted to the back of a letter flap on a front door to contain unwanted items, threats of arson, and intimidation. This was following a visit to an elderly couple living on the top floor of a tower block with no means of escape and living in fear of incidents via their letter flap.
Development of Homeguard
As an engineer and business owner, Ian produced a box called Homeguard, fitted with an intumescent extinguisher, and returned to install it for them free of charge. It provided them with so much peace of mind that Ian decided to market the product.
Expansion to Mailboxes
When demonstrating this product to architects and developers, he was asked for mailboxes to go on, in, and through the wall. As a result, he then duly created and developed our first range of mailboxes.
Growth and Innovation
Fast forward 35 years, and we now have over 180 models of mailboxes in our range. We are at the forefront of innovation and aesthetics within mailboxes and now parcel boxes. This includes a 2-hour Fire Rated mailbox range and Secured By Design mailbox solutions. We also designed and manufactured FlaplockTM, a lockable letter flap, designed to lock off the letter flap as a retro-fit product. This was produced as a result of demand from UK Arson Task Force teams, again to address crime associated with the letter flap.
Bespoke Solutions and Prestigious Projects
SLB bespoke solutions are second to none – adorning the most prestigious of developments worldwide, including the Burj Khalifa in Dubai and projects in Mexico, Gibraltar, the US, Qatar, Australia, with multiple projects being installed weekly in the UK. Working with designers, architects, and developers, SLB has created the most visually impactful and beautiful arrangements with clever technical expertise, literally turning their vision into reality.
Recognition and Acquisition
In 2011, Ian Brown received an MBE for services to Industry in the Queen’s Birthday Honours List. He continues to operate as a consultant to the business following his retirement in 2012 when SLB became part of the Renz Group.
CURRENT
Leadership and Growth
The Safety Letterbox Company is the UK’s leading mailbox and parcel box manufacturer, run by Ian’s daughter, Alison Orrells, who joined the business in 1999. Alison was instrumental in setting up many departments within SLB and bringing in multiple processes and procedures. She took over as Managing Director & CEO in 2007. Alison has received many recognitions over the years, such as South Wales Business Woman of the Year 2016 and Female Managing Director of the Year. The business itself has been recognised many times for innovation, growth, expansion, and international business.
Joining the Renz Group
Joining the Renz Group in 2012 was a mutually beneficial arrangement. It provided the backing of a large international group and the almost 100 years of experience Renz had in Europe. This allowed SLB to be run as it always has been, with strong family values and culture, and a thorough understanding of the UK market.
Workforce and Ethical Standards
SLB continues to grow and currently employs over 60 local people. All employees are vitally important to the business. It is run with best practices and ethical standards in mind. Departments include Sales & Estimating, Accounts, R&D, Marketing, E-commerce, Continuous Improvement, Production Control, Installation, Service & Maintenance, and Despatch. All products are made in-house with departments such as sheet metal, welding and fabricating, powder coating, assembly, and engraving.
Research and Development
As manufacturers with total control over R&D, we can work with the customer to provide the very best solution for their project. The Safety Letterbox Co has a loyal, experienced, and highly productive team that work within an open, measurable, and quality-driven culture.
Commitment to Excellence
As an Investors in People and ISO9001 company, SLB operates in a continuous improvement environment with a passionate and proactive mindset. The customer is at the forefront of everything at SLB, and being a British manufacturer is vitally important to SLB core values.
Industry Involvement
SLB is a trusted voice in the industry with involvement in many bodies such as Made In Britain, Chamber of Trade, and CBI. Alison also sits on the Board of Swansea Bay Business Club, Manufacturing Wales, and the CBI Council for Wales and Nationally for SMEs and Manufacturing.
Corporate Social Responsibility
SLB is firmly committed to its Corporate Social Responsibility pillars and the road map it follows to ensure the company consistently delivers for the business, valued customers, the environment, and our community.
Renz Group Overview
Renz Group is Europe’s market leader, employing over 820 personnel with factories in Germany, Poland, France, and SLB in the UK. It has immense capability, knowledge, and expertise. With a phenomenal range of products for both mail and parcel delivery, including the multi-award-winning myRENZbox intelligent systems, Renz Group satisfies and future-proofs the growing demands of e-commerce and intralogistics.



Our Story
Established in 1986, we began with a simple but powerful idea: to create secure, reliable, and customisable mailbox solutions for residential and commercial properties, meeting the growing demand for advanced delivery security.
From the start, we committed ourselves to excellence. Today, we are the only UK manufacturer holding the prestigious IASME Level 2 certification for our myRENZbox products – a recognition that highlights our dedication to safety, innovation, and the highest industry standards.

Our Timeline

Thinking Outside the Box in Mail & Parcel Delivery
Through years of collaboration with fire chiefs and industry leaders, we have built a deep understanding of safety compliance and the evolving needs of modern delivery systems. We proudly raise industry standards with cutting-edge products like our Secure Information Box (SIB), which strengthens safety protocols and protects sensitive information.
Our bespoke mailboxes and parcel systems combine functionality with thoughtful design, integrating seamlessly into any architectural vision. From large-scale Build-to-Rent (BTR) developments to single properties, we recognise that security needs differ, and we tailor our solutions to meet each project’s requirements.
At The Safety Letterbox Company, we go beyond manufacturing. We act as a trusted partner in enhancing security, improving operational efficiency, and delivering peace of mind. Our commitment to quality, innovation, and safety drives us forward as we shape the future of secure mail and parcel delivery.
Established in 1986, we began with a powerful idea: to create secure, reliable, and customisable mailbox solutions for every property type. Since then, we have grown to meet the increasing demand for advanced delivery security. From the beginning, we focused on excellence and continuous improvement. As a result, we now lead the industry with trusted, innovative solutions. We are trusted in every sector whether that be Build-to-Rent (BTR) developments or Hospitality Developments.
Today, we proudly hold the prestigious IASME Level 2 certification for our myRENZbox products. We are the only UK manufacturer to achieve this recognition. This certification highlights our commitment to the highest standards of safety and innovation. It also reinforces our promise to deliver security solutions our customers can depend on.











Award Winning British Manufacturer
We are incredibly proud to be an award-winning British manufacturer, recognised for our commitment to quality, innovation, and craftsmanship.
As proud members of Made in Britain and Manufacturing Wales, we actively uphold the highest standards in production. Every product we deliver showcases British excellence. Through these prestigious organisations, we demonstrate our dedication to supporting local industries, promoting sustainable manufacturing practices, and strengthening the UK manufacturing sector.

Find Out More

Compliance and Documentation
We prioritise adherence to all safety and security standards, recognising their importance in ensuring best practices within our business. Our commitment extends to operating responsibly, maintaining a safe working environment, and fostering a culture of continuous improvement across all areas of our operations.

Meet the Team
Our team at The Safety Letterbox Company is highly skilled in delivering exceptional service to all customers. We provide detailed project drawings for every enquiry, offer a variety of site services such as surveys and installations, and ensure fast lead times for a seamless experience from start to finish.

Memberships & Accreditations
We strongly believe in collaboration and knowledge-sharing, engaging with industry groups and regulatory bodies to ensure our voice is heard. This involvement allows us to influence standards, stay ahead of emerging trends, and contribute to the ongoing evolution of best practices in our field.








