In the 2015–2016 edition of The Parliamentary Review: A Year in Perspective , we were  celebrated for our contribution to technically detailed projects across the UK’s infrastructure and construction sectors. A decade on, we continue to excel, combining refined architectural craftsmanship with advanced protective solutions. Over the years, we have been commissioned to deliver our solutions across major transportation hubs, prominent government establishments, international airports, and distinguished landmark buildings throughout the United Kingdom Frequently engaged at the earliest architectural stage, we collaborate closely with architects and consultants to ensure design vision and security requirements are seamlessly integrated from concept to completion. Working alongside a network of trusted specialist manufacturers, it offers a comprehensive turnkey service encompassing design coordination, fabrication oversight, and meticulous installation. Modern buildings increasingly demand discreet yet formidable protective measures. Design Rationale rises to this challenge through blast-resistant glazing, reinforced façade systems, and ballistic-rated products, fortifying structures while preserving their architectural elegance. Its expertise is especially pertinent to airports, transport hubs, public edifices, and high-footfall commercial developments, where resilience and occupant safety are paramount. With over 33 years of experience, We remain committed to delivering bespoke solutions that safeguard people and infrastructure securing great reputations amongst UK’s top architectural metalwork and glazing solutions provider, ensuring that, ten years on from its Parliamentary Review feature, the company continues to future-proof critical environments against evolving security threats without compromising design integrity.

installation works are currently underway at Boots in Manchester Piccadilly Station, where a bomb blast–resistant shopfront is being fitted. The project includes the precise installation of large 300kg laminated glass panels and a Blast tested sliding door system. The system is designed to withstand significant impact and blast pressures while maintaining the clear, refined appearance expected of a modern retail frontage. Installers from Design Rationale Ltd are presently maneuvering the panel into position using specialist lifting equipment. Design Rationale Ltd is recognized as one of the United Kingdom’s leading designers, suppliers and installers of high-security glazing systems As global security awareness continues to rise, particularly around major transport hubs and crowded public environments, blast-resistant glazing is increasingly being specified as part of modern safety.

We are delighted to announce that we have been presented with a Health & Safety Award by Mace Group in recognition of our contribution to the Heathrow Terminal 5 Transformation Project on the architectural glass and metalwork package, led by Project Manager Luke Carter, formally recognized in January 2026 for upholding exemplary standards of health, safety and wellbeing within a complex live airport environment. Working within an operational terminal demands careful planning, close coordination and an uncompromising approach to safe delivery. This award reflects the professionalism, diligence and collaborative ethos demonstrated by our team and supply chain partners throughout the programme. We are proud to support the continued development of Heathrow Airport and are honored to have our commitment to safety excellence acknowledged. Our sincere thanks and congratulations to Luke and the wider project team on this achievement.

Recently, we brought that same team spirit to an inspiring nationwide initiative in support of Macmillan Cancer Support. Our team committed to a 35-minute exercise session each day, improving wellbeing while supporting an incredible cause. For every employee who took part, Design Rationale Ltd made a charitable donation and those who raised the most funds won the monthly wellbeing challenge prize thus reinforcing our commitment not just to participation, but to meaningful impact. Across the UK, a total of 1,926 individuals took on the  challenge, raising an outstanding £100,308 for people living with cancer. We are proud to have contributed to such a powerful collective achievement. A special thank you goes to Mr and Mrs Heap for suggesting we take part in this initiative and for their generous donations. Their encouragement and support helped turn a simple idea into meaningful action, inspiring our team to get involved and make a difference. A big congratulations to the challenge winners Jenny, Sue and Glenn for raising the most funds within Design Rationale Ltd. Initiatives like this show how small daily actions, multiplied across organizations, can create significant change. By investing in employee wellbeing while supporting vital services, businesses can have a positive impact both internally and within the wider community. We hope our involvement encourages other companies to step forward in support of charities like Macmillan Cancer Support, helping ensure that individuals and families facing cancer receive the care, guidance and practical support they need - when they need it most. At Design Rationale Ltd, building strong structures goes beyond steel and glass - it’s about building stronger communities too.

Design Rationale were responsible for the design, coordination, and installation of the high-level glazed balustrade and handrail systems at London Blackfriars Bridge, delivered in collaboration with a trusted manufacturing partners back in 2012. Our scope of works included: High-level glazed balustrade Handrail systems The glazed balustrades were designed to enhance safety while maintaining openness and transparency, complementing the station’s modern architecture. The handrails were engineered for ergonomic comfort and visual harmony, integrating seamlessly with the balustrade system. Installation was executed with meticulous planning and precision to ensure safety and accuracy. Bespoke lifting equipment was designed and engineered to lift and install the glass in a very tight working area. This project demonstrates Design Rationale Ltd.’s expertise and reliability as a leading provider of architectural glazing and metalwork solutions, delivering high-quality, visually striking, and technically precise installations for complex infrastructure projects.

At DR sustainability isn’t just a goal – it’s part of how we work and grow. As part of our ongoing commitment to reducing our environmental impact, we’re proud to share that solar panels have now been installed at our head office. This investment marks an important step in lowering our carbon footprint by reducing reliance on non-renewable energy sources and cutting overall energy-related emissions. By generating clean, renewable electricity, we’re helping to create a more energy-efficient workplace while supporting wider efforts to tackle climate change. We believe that being a responsible business means making practical, long-term choices that benefit both people and the planet. The installation of solar panels reflects our determination to operate more sustainably and to continually review how we can reduce our environmental impact across our operations. This is just one of the ways Design Rationale is working towards a greener, more sustainable future.

Design Rationale has completed the installation of  bespoke glass panels at the Kiosk 2 retail unit within Liverpool Street Station, London. The works included the replacement of a large, irregularly shaped structural glass panel forming part of the angled storefront, as well as a full-height entrance door panel. To minimise disruption within this busy transport hub, the installation was carried out over two overnight. Specialist vacuum-lifting equipment was used to safely remove the existing glazing and accurately position the new panels within the constrained site environment. All works were delivered under strict health and safety controls. The completed installation enhances glazing performance, improves visual clarity, and integrates seamlessly with the existing architectural features, supporting the retailer’s branding and presentation. Design Rationale would like to thank Lola’s, Spence, and Network Rail for their cooperation.  Our core strength is always but not limited to capability to deliver high-quality glazing works in complex, high-traffic environments.

We are  pleased to announce our appointment on the upcoming CIP Lounge at Heathrow Terminal 5, delivered in collaboration with Mace. Following a competitive process, Design Rationale has been awarded the glazing and metalwork package, recognising our expertise in delivering high-quality, technically complex architectural solutions within live aviation environments. The project has been designed by Chapman Taylor, whose vision sets a strong architectural benchmark for the new CIP Lounge experience. The CIP lounge is set to embody space expansion for British Airways . We look forward to working closely with the wider project team to help realise a refined, premium space that reflects the standards expected at one of the world’s busiest international terminals. This appointment represents another significant milestone for Design Rationale and reinforces our growing track record across high-profile transport and hospitality projects. Further updates will follow as the project progresses.

When Londoners ride an escalator on the Underground or the Elizabeth Line, they’re now greeted by vivid digital panels that transform travel time into a moving visual experience. Behind this upgrade is Design Rationale , working with the Global & Transport for London (TfL) partnership to engineer and install the bespoke frames for these striking screens. Our team delivered installations across some of the busiest stations in the capital: Crossrail : Tottenham Court Road, Farringdon, Bond Street, Liverpool Street, Whitechapel London Underground: Oxford Circus, Tottenham Court Road, Euston, King’s Cross, Piccadilly Circus, London Bridge, Bank This city-wide rollout reaches millions of passengers every week. Installations challenges on the underground: Tight Overnight Windows – All work happened in short engineering shifts so stations stayed fully operational by morning. Complex Architecture – Each escalator shaft has its own angles and constraints, requiring custom-designed brackets and millimeter-perfect alignment. Harsh Conditions – Constant vibration, dust, and fluctuating temperatures demanded rugged materials and strict fire-safety compliance. Engineering Highlights Hidden Infrastructure: Kilometers of cabling and concealed fixings keep the focus on the sleek displays. Seamless Visuals: Screens line up so precisely that long escalator runs appear as a single, continuous digital ribbon. 24/7 Reliability: Designed for constant operation in one of the world’s busiest transport networks. Impact Today, these escalator screens are a signature feature of London’s transit system-informing, entertaining, and creating a premium platform for advertisers. For Design Rationale limited  this was not just an installation project-it was a chance to help redefine how millions of daily travelers experience the city.

At the end of 2025 , Design Rationale oversaw TN75 impact testing as part of the design development for a plant enclosure on a prestigious architectural project. The test was carried out to verify how the selected Rimex textured stainless-steel material would perform under both soft and hard body impacts-ensuring the enclosure meets the durability and safety standards expected for high-profile developments. The TN75 test is a widely recognised assessment used within the UK construction and façade industry. It measures a material’s ability to withstand real-world impact forces such as accidental bumps, contact from maintenance equipment, or heavier, energy-absorbing impacts that may occur in public or serviceable areas. The testing involves: Soft body impact  to simulate a person falling or leaning forcefully against the structure Hard body impact  to represent smaller, more concentrated strikes such as tools, trolleys, or wind-borne debris By carrying out this testing, we were able to confirm how the Rimex panel system reacts at specific distances and energies, giving the design team confidence in both the performance and resilience of the enclosure. This ensures that the final installation will not only deliver the high-quality aesthetic expected for the project, but also provide reliable protection for the plant equipment it houses. At Design Rationale, we pride ourselves on our ability to find practical, innovative solutions that meet the needs of each project and its specification, no matter how demanding. The successful completion of the TN75 test reflects our commitment to combining architectural craftsmanship with technical assurance-providing solutions that perform as well as they look.

We are proud to announce and congratulate Glenn Dorrington, our Quality Control Manager, on achieving certification in Quality in Construction. This accomplishment highlights both Glenn’s dedication and our wider commitment to maintaining the highest standards across our projects. As a bespoke architectural glass and metalwork subcontractor, precision and consistency are essential. By investing in the ongoing development of our team members, we ensure quality is embedded from design coordination through to installation and final handover. Being specialists  in delivering Bespoke products and services requires constant development to meet standards of all the diversity delivery. Being specialists  in delivering Bespoke products and services requires constant development to meet standards of all the diversity delivery. At Design Rationale, we actively support training and professional development because skilled, knowledgeable teams deliver better outcomes-for our clients, our partners. Congratulations, Glenn, on this well-deserved success.

Design Rationale is proud to share that our Terminal 5 project team has received a Health & Safety Award from Mace, recognising outstanding performance on the Heathrow Terminal 5 project. Working within a live airport environment demands absolute discipline, clear planning and a safety-first mindset. The T5 team has consistently demonstrated exceptional commitment to safe systems of work, proactive risk management and full compliance with site procedures. This recognition reflects their professionalism and their determination to ensure everyone goes home safe, every day. As a bespoke architectural glass and metalwork subcontractor, quality and safety are inseparable ,Our work involves complex installations and high-spec finishes, making punctilious preparation, training and collaboration essential. By embedding health and safety into every stage of our delivery, we are able to achieve the highest standards of craftsmanship without compromise. We would like to thank Mace for the recognition and continued support, and to congratulate our T5 team for setting an excellent example on site.