Design Rationale has taken a meaningful step in its sustainability journey with the installation of a solar PV system at its head office. As a construction company committed to low-carbon practices and energy-efficient solutions, investing in renewable energy was both a logical and strategic decision. The system is already making an impact - currently covering around 30% of office electricity usage by generating clean energy during peak working hours. With longer days and str

In March, Design Rationale brought the team together for a wellbeing afternoon dedicated to stepping away from the day-to-day and focusing on health, connection, and team spirit. The afternoon featured activities including rock climbing and badminton, encouraging everyone to get active, try something new, and support one another in a relaxed, social setting. Events like this offer real benefits. They help reduce stress, boost morale, and strengthen relationships across teams

Design Rationale are delighted to announce the successful completion of a remarkable project within Heathrow Terminal 3, finished in March 2026 after commencing in 2023. This distinguished undertaking saw the delivery of a wholly bespoke architectural metalwork and glazing package, defined by an elegant curved, full-height glazed installation. The result is a refined and contemporary feature that enhances both the aesthetic and functional quality of the space. The project dem

We were thrilled to host our February Wellbeing Event, featuring a company-wide Steps Challenge to encourage health, engagement, and friendly competition. We are delighted to announce that our team at Norman Shaw North, delivering the secondary glazing and metalwork package, Dobrin .D claimed the top prize with an impressive 443,772 steps and received a well-deserved cash reward. Special recognition also goes to our subcontractor, Alandale Group member who achieved a remarkab

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 ai

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 man

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,

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 imp

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 handr

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 en

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 re

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

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, Farr

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 co

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 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 ref

We are pleased to share that Vidas Peciukonis has been recognised by Mace with a Health & Safety Award for his contribution to the Heathrow Terminal 5 Security Transformation Project. Working under the guidance of our Project Manager Luke Carter, Vidas has shown a consistent commitment to safe working practices and a conscientious approach on site. His attention to detail during installation ensures that the work carried out is not only high-quality, but also aligned with the

As part of our Wellbeing November activities, we kicked off a fun and energetic Press-Up Challenge that brought out everyone's competitive spirit. The mission was simple: complete as many press-ups as possible in one minute , Our team definitely rose to the occasion! The challenge was incredibly close, with several participants pushing themselves right to the final second. But one standout lifted the trophy: Jacob Cooper, who powered through an impressive 67 press-ups in unde

We are proud to announce that Design Rationale Ltd  has been named Contractor of the Month  by Mace this  November recognising our outstanding performance in quality, health & safety, and project management for the Heathrow Terminals 5  projects .This achievement reflects the hard work and dedication of every member of our team, and our continued commitment to delivering excellence across every package we deliver. The celebrations don’t stop there, On the Heathrow Terminals 3

At Design Rationale, quality is not just a promise, it’s a process. Every project we undertake is backed by rigorous inspection and uncompromising standards to ensure that the materials installed meet the highest level of performance and aesthetics. Take a recent project of ours supplying Architectural Metalwork Cladding as an example. During our recent visit to Rimex Metals UK, we inspected the Mill Finish Stainless Steel panels prior to Shot blasting to ensure that there we