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ALTHERM Window Systems

Stylish contemporary lines, effective thermal technology and unwavering attention to detail have made Altherm a favourite with architects, designers and homeowners across New Zealand.

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About ALTHERM Window Systems

Altherm draws on a 40 year tradition of design and engineering excellence, so whatever the project, there's an Altherm product that's perfect — new build or renovation. Altherm offers a wide range of solutions for all homes, from entrance doors to windows, sliders, bi-folds and thermally efficient options, Altherm has an option to suit every need.

Altherm is a brand of APL, the largest window solutions organisation in New Zealand.

News from ALTHERM Window Systems

Major Taranaki Refurb Project Used Altherm Windows
Extended Play: A 1940s Home Renovation with Altherm
APL Offers Klima uPVC Replacement Frames as an Attractive Alternative to Traditional Timber Joinery NEW
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