Senior doubles production thanks to thermal improvement facility

  • 20 Jun 2023

Following the opening of a second UK manufacturing site in South Yorkshire, leading aluminium fenestration solutions provider Senior Architectural Systems has increased production and reduced lead times on its popular PURe® range of thermally-efficient windows and doors.

Senior is the UK’s largest privately owned aluminium systems house and recently opened a dedicated thermal improvement manufacturing facility in Rotherham to support its main manufacturing facility in Denaby, near Doncaster, and its distribution site in Livingston, Scotland.

The new site has seen production of Senior’s patented PURe® range of low U-value aluminium doors and windows double, helping to bring down lead times and deliver the award-winning Part L compliant solution to more of Senior’s fabrication and specification customers.

The unique range, for which Senior recently won a King’s Award for Enterprise in innovation, is the first on the UK market to benefit from an enhanced thermal barrier manufactured from expanded polyurethane foam (PUR).


Traditionally used in cladding and insulation products, the innovative use of PUR as a thermal barrier gives the PURe® range the potential to achieve U-values as low as 0.71W/m2 K when calculated as a commercial CEN standard window and 0.93W/m2 K when calculated as a CEN standard door.

Further investment

Senior is planning further investment in the new site and has already expanded its local workforce with the recruitment of four new operatives.

The speed and efficiency of Senior’s production is set to increase further with the addition of a second high pressure polyurethane injection system later in the year, as well as a new double grooving machine and spiral wrapping machine.

As Senior’s dedicated Thermal Improvement Centre, production of other Part L compliant and low U-value aluminium windows and doors within Senior’s extensive range will also be moved to the Rotherham site in due course.

This will support the work that is set to continue at Senior’s main manufacturing and national distribution centre in Denaby. 

Together with Senior’s established sites in South Yorkshire and Scotland, the new facility has increased the company’s overall UK manufacturing capacity to 220,000 square feet.

Mark Wadsworth, Senior Architectural Systems’ managing director, comments: “We are making great progress with the launch of our new thermal improvement facility in Rotherham and are well placed to continue to meet demand for our Part L compliant aluminium fenestration systems.

“At Senior, we have always been committed to giving our customers what they want, when they want it, and the expansion of our UK manufacturing capabilities is allowing us to do us that. We have more plans in the pipeline for the new facility, as well as our other sites, and will continue to invest and innovate to bring the best aluminium solutions to market.”


Senior Architectural Systems,
Eland Road,
Denaby Main,
United Kingdom,
DN12 4HA

Email: [email protected]
Phone: 01709 772600
Fax: 01709 772601

Visit the Senior Architectural Systems website

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