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.
Lyndhurst
Lyndhurst is a big town and civil parish located in the New Forest National Forest in Hampshire, England. Functioning as the administrative capital of the New Forest, it is a popular visitor destination, with several independent stores, art galleries, cafés, galleries, clubs as well as resorts. The local city is Southampton, about 9 miles (14 kilometres) to the north-east. Since 2001 Lyndhurst had a population of 2,973, raising to 3,029 at the 2011 Census. The name stems from an Old English name, consisting of words lind (lime tree) as well as hyrst (wooded hill). Known as the "Capital of the New Forest", Lyndhurst houses the New Forest District Council. The initial reference of Lyndhurst remained in the Domesday Book of 1086 under the name 'Linhest'. The Court of Verderers beings in the Queens House in Lyndhurst. The church of St. Michael and All Angels was built in the 1860s, and also has a fresco by Lord Leighton and also stained-glass home windows by Charles Kempe, William Morris, Edward Burne-Jones and others; Alice Liddell, the ideas for Alice in Lewis Carroll's Alice's Adventures in Wonderland, is buried there. Glasshayes House (the former Lyndhurst Park Hotel) is the only enduring example of Sir Arthur Conan Doyle's architectural testing, and also neighborhood folklore records Lyndhurst as the website of a Dragon-slaying, and as being haunted by the ghost of Richard Fitzgeorge de Stacpoole, 1st Duc de Stacpoole.