How long your aluminium windows will last depends on their quality. They should last 20 -30 years at least, but have been known to stay in good condition for up to 45 years. This is considerably longer than uPVC and wooden double glazing.
Southwell
Southwell is a town in Nottinghamshire, England, the site of Southwell Minster, the cathedral of the Anglican Diocese of Southwell and Nottingham covering Nottinghamshire. Its population of under 7,000 boosted to 7,297 at the 2011 Census. The beginning of the name is vague. The community lies on the River Greet, about 14 miles (22 kilometres) north-east of Nottingham. Various other historic structures include the prebendal residences in Church Street and Westgate, and the Methodist church, which has a right of method running under it, to ensure that the top floor seats greater than the lower. The workhouse, constructed in 1824, was a model for numerous others. It is had by the National Trust as well as shows its appearance as well as problems in the 19th century. Behind the Minster is a partly ruined palace, when a house of the Archbishop of York. It consists of the just recently recovered State Chamber, Cardinal Wolsey's former dining-room, as well as gardens among the damages.