ThermalHEART® frames, combined with The AGP System® glass offers 94.7% improvement of thermal performance compared to standard non-thermally improved aluminium windows and doors[1], creating warmer, drier and healthier homes.
ThermalHEART® technology insulates the window system which helps to keep cool temperatures out in colder months, and decrease solar gain in warmer months, assisting in year-round warmth and comfort.
ThermalHEART® technology minimises heat flow through the frame creating a more stable temperature in your home.
ThermalHEART® technology can aid in managing the risk of condensation forming, therefore reducing the risk of mould growth.
2.2m - 2.4m
2.7m - 3m
2.7m - 3m
3.0m
ThermalHEART® Technology
Ability to mix and match
Clean, modern look
Designed and made in New Zealand
E2/AS1
E2/AS1
Centrafix®
Passive House version also available
E2/AS1
Dual colour
Flush sash for improved aesthetics
Flush sliding door tracks
Products to suit all environments and applications
Additional air tightness and security
Internal sliding door
External sliding door
Sliding door sidelight sash ability
Triple glazing
Improved acoustic performance
Toitū carbonreduce product certified
Specialty product
The AGP System®
Solux-E® or upgrade to Solux Ultra®. Argon gas. ATS - Architectural Thermal Spacer®
All our aluminium windows and doors are made to order, so you can select the formats and layouts that work best for your home.
Available window styles include sliding, bi-fold, awning, casement and fixed options. See all window configurations.
Door styles include sliding, bi-fold, hinged and French doors, with over-the-wall and cavity sliders available using APL Architectural Series ThermalHeart+. See all door configurations.
Many of these formats can be combined or produced in larger sizes, depending on the range and site.
Window and door thermal performance requirements under the NZ Building Code (H1) are based on six climate zones, which reflect the different weather conditions across New Zealand. Zone 1 covers the warmest regions, while Zone 6 applies to the coldest areas. Each zone has a minimum thermal performance requirement, measured as an R-value.
Current regulations require a minimum R-value of R0.46 in Climate Zones 1–4, and R0.50 in Zones 5–6. No matter where your project is located, selecting ThermalHeart+® aluminium or Klima® uPVC joinery with The AGP System® will ensure your joinery meets these Building Code requirements.
To help you choose the right solution, review the simple table showing the R-values for different joinery and glazing combinations. This allows you to confirm compliance by working from your required R- or U-value, or by checking the performance of your selected range and glass specification.
A map outlining New Zealand’s climate zones is also available for reference.
For renovation projects that do not require building consent, replacement joinery must comply with the minimum standard that applied at the time the original joinery was installed (a like-for-like replacement). That said, upgrading your windows and doors is a great opportunity to significantly improve thermal performance and bring your home closer to current standards.
Please note: This information is intended as a general guide only. Always check with your local council or building authority to confirm requirements for your specific project.
When renovating your home with new windows and doors, there are two main joinery options you can choose from:
For more details on each option and which might suit your project, see the insert and replacement pages, or explore our free renovation guide.
Aluminium windows and doors manufactured by First Windows & Doors are engineered specifically for New Zealand conditions, including coastal locations and areas exposed to demanding weather.
Our ranges step through levels of performance, span and format capabilities to accommodate the requirements of projects and sites throughout New Zealand.
Our joinery is designed and performance-tested in New Zealand by APL, then manufactured locally by one of our manufacturers to ensure it meets the strength, durability and compliance requirements of the New Zealand Building Code.
System performance is verified through testing to NZS 4211, covering structural strength, wind resistance and weathertightness, with assessments carried out at APL’s purpose-built testing facility in Hamilton.
The insulated glass units are produced by AGP, APL’s integrated glass division, and are manufactured and tested in New Zealand to NZS 4223. This confirms durability, gas retention and thermal efficiency.
Because both the joinery and glazing systems are developed, tested and made in New Zealand, homeowners can have confidence in full quality assurance, compliance and product accountability. All systems are designed to meet or exceed New Zealand Building Code requirements.
Consider how the combination of products in your window system will work together to deliver ultimate thermal efficiency and home comfort. When ThermalHeart+® frames are combined with The AGP System® glass, the thermal performance of the whole unit almost doubles(1) when compared to standard non-thermally improved aluminium joinery.
Wherever you are in New Zealand, your project will exceed the Building Code requirements when you choose ThermalHeart+® frames or Klima® uPVC joinery, and glaze with The AGP System®.
For non-consented renovation work, the replacement joinery needs to meet the minimum requirement in place at the time of the original installation (like-for-like). However, updating joinery is an opportunity to increase the insulation properties of your windows and doors to current standards.
Our comprehensive brochure outlines our key product ranges across frames, glass, hardware and surface finishing, with useful information to help you find the right window solution.
