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There are no grooves or ‘v’ lines running along Altherm profiles, and we’ve paid close attention to shapes and proportions across all our ranges.

Custom designed

Altherm windows can be customised easily to suit your unqiue requirements, and to deliver on desired architectural features.

This means windows of all shapes, sizes and configurations are possible, including curved tops, raking windows, louvres, faceted windows and glass block designs. Our manufacturers draw on years of experience to meet a wide range of requests for custom solutions that satisfy the preferences of designers and home owners.

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