Palmers Green High School, an independent girls’ school in North London, embarked on an ambitious summer refurbishment programme to modernise part of its estate. With just seven weeks between terms, the project required careful coordination to deliver a brighter, more contemporary learning environment within a tight timeframe.

Architects Levitt Bernstein selected Technal aluminium systems for their architectural quality, design flexibility, and strong sustainability credentials. Fabrication partner 3D Aluminium was appointed to deliver the scheme with precision and speed, supported throughout by Technal’s technical team.

The specification brought together Soleal Next 75 windows, Tental 50 curtain walling, and Stormframe II doors, creating a cohesive, high-performance façade. A key design feature was the introduction of a bespoke 200mm feature cap applied to alternate mullions, alongside an integrated ceramic glass panel within the main curtain wall screen. These elements required meticulous planning and tailored technical input to achieve the desired finish. Coloured ceramic glass panels incorporating solar control were used to complement the window systems, enhancing the building’s visual identity while helping to regulate internal temperatures and improve occupant comfort.

Fast and reliable lead times from Technal ensured that all systems were delivered on schedule, allowing fabrication and installation to progress seamlessly and meet the school’s critical deadline.

In addition to the fenestration package, 3D Aluminium was also appointed to supply and install timber cladding concurrently with the glazing works. Thermopine Microtex fire-treated cladding was selected for the project. Despite initial extended lead times and a further supplier delay, the team responded with flexibility and commitment, working extended hours to ensure installation and treatment were completed within the overall programme.

As principal contractor, 3D Aluminium took responsibility for liaising directly with local authorities to manage building control, regulatory compliance, and final sign-off. Although the process was impacted by seasonal demands and holiday periods, a proactive and persistent approach, maintaining regular weekly and, where necessary, daily follow-ups ensured that approvals were secured and the programme remained on track.

The completed building represents a significant step forward in terms of daylight, comfort, and visual quality. The use of Hydro Circal® low-carbon aluminium, made with a minimum of 75% recycled post-consumer scrap, supports the school’s environmental objectives and substantially reduces the façade’s embodied carbon.

Palmers Green High School now benefits from enhanced aesthetics, improved thermal performance, and long-term durability. This project demonstrates how thoughtful design and close collaboration between Technal, architects, and fabrication partners can deliver outstanding results even within the constraints of a demanding summer schedule.

Leonie Barnard, the school bursar, commented:

“The new windows and doors have completely transformed the building. The quality of craftsmanship is exceptional, and the whole process was managed professionally. We’re delighted with the outcome.”

Paul Davies of 3D Aluminium emphasised the value of early engagement:

“Matt Lazenby and the Technal technical team were fantastic. Their advice on the feature cap and detailing made a complex design achievable within the timeframe. Having that level of support really takes the pressure off.”

Matt Lazenby, Technical Operations Manager at Technal, added:

“We aim to support fabricators and designers wherever possible. This project shows how collaboration and technical expertise can deliver outstanding results under challenging timelines.”