About

Here at Adexon, we design and manufacture the UK’s premier fire curtain systems. Every product we create is engineered to solve the real-world reliability issues that have challenged this industry for decades.

Our mission is simple: significantly improve the real-life performance of fire curtains. We go far beyond outdated standards to deliver systems that meet modern expectations for safety, reliability, and long-term peace of mind.

Our Background

We’re part of the Cubex Group, which has worked with fire curtain systems for nearly 20 years. For a long time, this market was seen as niche and lacking potential. It also demanded serious investment to bring about any real innovation.

That changed for us over seven years ago. Major contractors across London began encouraging us to focus on fire curtains, recognising our track record in complex engineering through our high-security projects. One standout example is the US Embassy in London, where we designed and manufactured 4-tonne high-speed vehicle gates clad in 10 inches of glazing, operating at double the normal UK/EU speed under special waivers.

Even while working with legacy fire curtain designs, we secured several large-value projects, including numerous six- and seven-figure contracts. That was a clear signal, demand for better reliability and performance was growing fast.

Fire Curtains, Redefined

We identified what we believed to be the core issue behind poor fire curtain performance. With that insight, we built an entirely new product line from the ground up.

Our systems are not only a technical leap forward, but they’re also backed by a 10-year warranty. We focus on industry-leading reliability, robust third-party certification, and real-world performance that meets today’s highest safety standards, without compromise.

Learn more about our snag-free design:
Simply put, it is better

“It’s a step change in the industry not seen for a considerable time”

Ian Burgess, Senior London Architect, 2024.

Leading with Innovation

We now offer the UK’s widest range of third-party certified fire and smoke curtains, and we’re just getting started. Our ongoing investment in R&D has already led to several UK firsts:

S200: The UK’s first elevated-temperature smoke performance test. Read why it matters: Are cold smoke seals in fire curtains a cause for concern?

16m x 10m EI120 ‘dry’ fire curtain on a single barrel, with S200-level smoke performance. Typically used with sprinkler systems, this represents a modern step-change in system capabilities.

Concertina fire curtain certified to BS EN 1634-1 and BS EN 12101-1. This is the UK’s only scope-compliant, dual-certified fire and smoke curtain.

Horizontal fire curtain up to 20m x 10m without support cables. Larger sizes available with cable support.

Deployed pressure testing on  vertical curtains over 100 Pa.

C2 cycle testing: 10,000+ cycles completed on multiple products. No competitor has achieved similar results.

Designed for Ambitious Architecture

We believe safety should never limit design. That’s why our systems help architects push boundaries while staying fully compliant with the most demanding standards.

Every fire curtain we supply is:
• Fully compliant with the latest EN Standards.
• Independently tested and certified.
• Designed for high reliability and large-scale use.
• Backed by our 10-year warranty.

We’re here to support architects, contractors, specifiers, fire engineers, and other industry professionals in delivering safer, future-ready buildings. If you’re specifying fire protection systems, we’ll help you raise the bar.

Discover the difference:
Our products

Some of the team

Charles Devenish

Managing Director

Charles has been at the forefront of the Cubex and Adexon businesses for over 18 years. With a strong background in science and engineering, Charles has impeccable attention to detail that ensures successful long-term outcomes. He holds trust, integrity, loyalty, and principles at the core of his work, making him a risk-averse yet pioneering long-term thinker.

Jamie Nelson

Design & Installation Manager

Jamie has an impressive track record in his field. He has continued to exceed expectations, playing a key role in the delivery of our products on some of Europe’s most prestigious projects, such as 100 Bishopsgate and the New US Embassy in London’s Nine Elms district.

Jack McKinney

Business Development Executive

Jack is an enthusiastic, personable, and results-oriented team member. He has recently completed his undergraduate degree in Communication, Advertising, and Marketing, and he has a great passion for fire safety. If you are looking for an introduction to our products and services, Jack is the person who can get you connected quickly and efficiently.

Eileen Brewer

Operations Document Control​

With over 25 years of experience in construction and contracts administration, as well as logistics planning and delivery, Eileen is a reliable and trusted member of our team. Her “can-do” attitude and attention to detail make her the go-to person for vital documentation and follow-up.

Zola Remmington

Systems & Accounts Assistant

Zola is our Systems assistant who has been with us for two years. With her exceptional academic background, Zola has proven herself to be a superb addition to our team. Zola’s passion for learning and eagerness to develop our software systems has been a great asset to our team.

Quintin Enslin

A project manager with 12 years’ experience delivering construction projects across high-end residential, retail, and commercial sectors.