Our statement on proposed changes to import regulations
Recently, the government publicly raised its proposal to deregulate building industry imports. As the market leader in New Zealand’s window and door manufacturing industry, APL has serious concerns about these changes.
While we support the goal of making housing more accessible for Kiwis, this cannot come at the cost of safety, quality, or long-term performance. At APL, we’re steadfast in our commitment to keeping New Zealand homes safe for the long haul by upholding the rigorous standards, accountability, and resilience that only local manufacturing can ensure.
For decades, New Zealand’s window industry has designed and built joinery to meet one of the toughest climates in the world. Our building standards have been developed through decades of local expertise, rigorous testing, and lessons learned. They exist for one reason: to protect the safety, durability, and comfort of our homes.
These regulatory changes risk opening the door to imported products that may never face our local testing. Offshore standards often don’t account for New Zealand’s unique challenges such as: high wind zones, coastal salt spray, and seismic activity - these conditions can quickly expose weaknesses.
Windows aren’t just another building product, they’re critical to the structural integrity, weathertightness, and safety of every home. When they fail, the consequences aren’t just cosmetic – they’re costly, unsafe, and often irreversible.
APL believe Kiwis deserve:
• Proven performance – products tested and verified against our own rigorous standards.
• Safety you can trust – compliance that’s more than a tick-box, backed by on-the-ground accountability.
• Resilience for generations – homes that stand strong through storms, salt air, and seismic events.
We’ll continue speaking up about quality, safety, and the long-term protection of New Zealand homes. Because NZ-made is about supporting local jobs, while delivering proven, reliable performance where it matters most.
To learn more about the craft, care, and commitment behind our windows and doors from the people who know it best, see our Made here, for you podcast series.
Climate Zones and H1 Requirements
At the end of 2022, we moved from 3 climate zones to 6 to allow a more nuanced approach to climatic factors and window suitability. The zones are numbered from Zone 1 being the warmest climate, to Zone 6 in the coolest climate areas (as indicated on the map). All zones are now required to achieve a minimum R-Value (R0.46 for Zone 1-4, R0.50 for Zone 5-6).
Which products should be used?
Wherever you are in New Zealand, your project will exceed the Building Code requirements when you choose ThermalHeart+®, or Klima® uPVC joinery with The AGP System®.
Resources for specifiers
APL Specifier Guide
You can find product drawings and technical information in the APL Specifier Guide, with extensive detail on the complete library of products in the First Windows & Doors, Vantage Windows & Doors and Altherm Windows Systems ranges, including Residential Series ThermalHeart+®, Metro Series, Metro Series ThermalHeart+®, Centrafix®, and APL Architectural Series ThermalHeart+®.
Centrafix® Installation resources can be found here
EBOSS is an online library of product catalogues from New Zealand's leading architectural product suppliers, including our Altherm, First and Vantage brands.
Products in the EBOSS library contain scope of use, limitations and building code compliance information, case studies, plus product literature like drawings, CAD and BIM, warranties, appraisals and more.
Detailed specification clauses for products are available on the Masterspec website under APL Window Solutions, and AGP.
Masterspec serves the New Zealand construction industry with a pre-formatted, up-to-date database of specification clauses, using an online interface to structure, edit, add support documentation and output to multiple formats.
APL specifications are also available on Smartspec.co.nz
APL Thermal Calculator
The tool allows architects, designers and homeowners to generate accurate comparisons across the APL product ranges as well as the AGP glass products. Users can mix and match products to see how it affects the R value and allows them to easily benchmark against other New Zealand window systems.
The tool allows you to get indicative results with a few clicks, any time, without needing to be processed by a window supplier. This enables you to access the information faster during the initial design phase and without committing to a detailed design or needing a manufacturer to build up a full specification and generate a quote and WEERS report.

We've created a compilation of podcast episodes from our Altherm, First and Vantage magazine collaborations. The podcasts feature HERE editor Simon Farrell-Green, Homestyle editor Alice Lines or Your Home & Garden editor Fiona Hawton discussing the vision, challenges, and triumphs behind recent home projects with the home’s architect. With 30+ episodes, and new episodes added with each magazine issue, there are bound to be some familiar names and projects, and some new favourites too. Listen on Spotify
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Multi-Award-Winning Innovation
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The New Waitangi Museum
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2020 Master Builders Award
APL’s ThermalHEART windows and doors were a key part of the prize-winning home that won the national ‘Sustainable Excellence’ award.
Award-Winning Nelson Apartments
Nelson’s large-scale residential development featured Altherm windows and doors from a product palette that allowed individual apartment purchasers to customise their choice.
Striking Early Childhood Centre
“Designing beautiful spaces for children,” is how Auckland architect, Phil Smith, explains his design philosophy for preschool centres.




