Aluminium is an extremely durable material. It has a thick profile and looks very solid. Aluminium windows are retro-fitted. There are minimal standard ranges in aluminium as most windows are made to fit the opening left once a building is complete.
There are numerous finishes an aluminium window can come in: Anodized windows are chemically stained. Anodizing leaves a metallic finish; Powder coating is used to create myriad colours; and Plastic wrapping gives a textured look – such as wood. This is the most expensive type of finish. Aluminium windows come already glazed and are sealed with a rubber seal. Furniture is included. Aluminium needs the least maintenance. It does not need to be painted, but it does oxidise (similar to rust) over time and therefore should be kept clean. Aluminium is very soft and can be easily damaged. Manufacturers will come to site to measure openings before they supply windows, to make sure that the frames will fit.