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.
Sandringham
Sandringham is a town and civil church in the north of the English area of Norfolk. The village is situated 2 kilometres (1.2 mi) southern of Dersingham, 12 kilometres (7.5 mi) north of King's Lynn and 60 km (37 mi) north-west of Norwich. The civil parish extends eastwards from Sandringham village to the coast of the Wash some 6 km (3.7 mi) distant, and also includes the towns of West Newton and Wolferton. It has a location of 41.91 km2 (16.18 sq mi) and also in 2001 had a population of 402 in 176 houses. The population had actually enhanced to 437 at the 2011 Census. For the purposes of city government, the church remains in the district of King's Lynn as well as West Norfolk. Sandringham is best called the area of Sandringham House as well as its estate, a favoured holiday house of Queen Elizabeth II and numerous of her precursors. Near to Sandringham residence is the Royal Stud, a stud ranch that houses many of the royal horses. The village was the native home of Diana, Princess of Wales.