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The Altherm warranty certifies that all products meet or exceed the requirements of the New Zealand Building Code means of compliance for windows and doors (NZS 4211 & NZS 4223, parts 1, 2 & 3).

They are guaranteed for five years against failure of materials and workmanship and, as per the Building Code, can be expected to have a serviceable life of more than 15 years. Read the terms and conditions.

Validate your warranty

Congratulations on your purchase. Please enter the warranty number from your warranty booklet or email notification to confirm your details.

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