we got a quote from marvin and it was about 40k for aluclad!!! - Their timber quote was about 30k - went with timber ones from carlson in the end and it was 17k and they are lovely -don't know they do aluclad though
Have a look at Rationel (their aluminium clad are called ALDUS - not as expensive as Marvin - went with Rationel windows 2 years ago (very happy with their quality).
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