The ALTI composite window and door system incorporates the practicality of aluminium on the exterior and the beauty of timber on the interior to create an elegant and efficient product range. Offering the most extensive range of window and door styles, timber species and hardware options. ALTI will beautify homes ranging from classic villas to contemporary apartments. The aluminium used in ALTI has been designed to complement the traditional appearance of timber, while offering a modern, high performing joinery system. The thermal efficiency of ALTI is achieved by integrating properties of timber with strong low maintenance aluminium.