Senior Architectural Systems (Senior) is the UK's largest privately owned provider of complete fenestration solutions to the construction industry. 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.