Senior Architectural Systems (Senior) is the UK's largest privately owned aluminium fenestration solutions manufacturer. We design and supply innovative aluminium and aluminium/timber composite profiles for high performance windows, doors and curtain walling. This includes our patented PURe® range of aluminium windows and doors featuring an innovative high insulation polyurethane foam (PUR) thermal break to give ultra low U values and unbeatable thermal efficiency. With our own powder coating service, glazed unit manufacturing and a wide range of door and window accessories you’ll find everything for fabricating stunning architectural façades. Whatever your budget, deadlines, performance specification or design, we have an answer to fit. Creators of #AluminiumDay.