Articles and Guides

Whether you're undertaking a full home renovation or prioritising changes to your home that will have the biggest impact, updating the windows and doors in your existing home is a proven way to increase the comfort, aesthetics, and value of your home.

Taking some time to go through these key points before you speak with your local manufacturer will help you identify the areas you would like to cover, which points you place a lot of importance on and what questions you have.

Simon Farrell-Green, editor of HERE magazine, spoke with our very own senior design engineer about the changes to the New Zealand Building Code (NZBC) clause H1 and what it means for kiwi homeowners looking to build or renovate.

Learn more about the best uses and placements of window and door configurations to help you achieve the best function, light and accessibility for your home.

A thermally efficient house is designed to harness the available natural resources to create a stable, comfortable environment. Everything works together for a home that's healthier and cheaper to heat and cool, year-round.

When you choose Altherm you're supporting a New Zealand made product. As part of the largest supplier of windows and doors in the country, our commitment to 'all things local' began when APL did.

Altherm Window Systems products meet all statutory warranty requirements and are fully tested to ensure compliance with the New Zealand Building Code. There are some simple things you can do to help retain their appeal for many years to come.

Our windows and doors comply with the New Zealand building code. All products supplied by Altherm Window Systems meet or exceed the requirements of the New Zealand Building Code in terms of durability and performance.