ThermalHEART® Frames.
Designed to meet the updated H1 Energy Efficiency standards of the NZBC, ThermalHEART® windows ensure your project exceeds thermal performance requirements. With over 20 years of experience, Windowmakers provides expert guidance, ensuring your project meets all necessary standards.
What are ThermalHEART® Frames?
ThermalHEART® thermally broken aluminium frames feature an advanced polyamide barrier at their core, effectively separating warm and cold areas to insulate the window frame and nearly double the thermal performance of standard aluminium joinery. Designed to improve energy efficiency, ThermalHEART® technology transforms traditionally cold aluminium window frames into a solution that creates warmer, drier, and healthier homes.
Available across all our aluminium door and window ranges, ThermalHEART® themal break aluminium combines modern design with superior energy energy efficiency, ensuring year-round comfort.
ThermalHEART® Features.
- ThermalHEART® thermal break aluminium is integrated across all suites: Residential Series, Metro Series, and APL Architectural Series.
- Flexibility to mix and match aluminium joinery profiles within a single project for exceptional versatility.
- Modern, clean aesthetic.
- Increased air tightness and security.
- Enhanced acoustic performance for quieter homes.
- Designed and manufactured in New Zealand to meet local requirements.
A ThermalHEART® suite to suit any project.
Every project has unique specifications, and choosing the right ThermalHEART®thermally broken window profile is essential for optimal performance. Windowmakers’ team of experts will guide you through selecting the best product to meet your needs, including design, size, wind exposure, and functionality.
Each aluminium joinery range shares core design principles, providing versatility and a consistent modern look across your project.
Over 20 Years of Experience.
Enquire today and experience the Windowmakers difference in quality and service.
Get started on your next projectComplete Your Aluminium Window System.
Achieving the highest thermal efficiency requires more than just quality frames. For optimal performance, the entire window system—including frames, glazing, and installation—must work together.
ThermalHEART® thermally broken aluminium frames combined with The AGP System® double glazing with argon gas nearly double thermal performance, and when paired with the Centrafix™ Installation System, thermal efficiency is further enhanced by an additional 20%.
Additional Information.
Explore the full range of ThermalHEART® aluminium thermal break system windows and complementary products in our brochure below. Discover how our complete system can deliver the ultimate thermally efficient aluminium door and window solution for your project.

Get in Touch.
If you’d like to learn more about how ThermalHEART® thermally broken aluminium frames can benefit your next build, contact us today. We look forward to discussing your project in detail and providing the best solution tailored to your needs.
Ready to bring your project to life? Enquire today and let's get started!