Tested and certified
Our uPVC windows and doors have been independently evaluated by New Zealand engineering and building consultancy firm, Kaizon Ltd., for compliance with the New Zealand Building Code: they meet or exceed requirements. A copy of this report is available upon request - just flick us an email.
All of our windows and doors have also been tested, inspected, and certified by the United States Window and Door Manufacturer’s Association WDMA Hallmark Certification Programme, an international certification programme similar to CodeMark Certification in Australia and New Zealand. Many of our windows and doors have been NFRC and Energy Star tested and certified as well.
Naturally thermally broken double glazing
Our uPVC double glazed windows outperform thermally broken aluminium double glazed windows. Aluminium is naturally thermally conductive, so even with thermal breaks, heat transfers through the metal.
Our uPVC joinery is made from extruded polyvinyl chloride, an excellent and durable insulator, so more heat stays in during winter, and out during summer. To provide the best insulation, all of our window and door frames are made of uPVC, wood, clad wood, or a combination of all three materials.
Insulation performance (R-value)
Joinery that's built to last
Our naturally thermally broken frames are less likely to attract condensation and will transfer much less heat than conventional aluminium joinery. This means that they won't expand and contract with temperature swings, like aluminium frames might, leading to a much longer expected lifespan. With proper care and maintenance, our uPVC joinery can last up to 50 years or more.
Titanium Dioxide is also added to the uPVC that we use to protect the frames from UV damage, fading, and cracking. uPVC is naturally resistant to salt and water corrosion, and our wood and clad wood frames are specially treated to withstand harsh New Zealand conditions.
Low-emissivity (low-E) glass
All of our windows and doors come standard with Cardinal low emissivity (low-E) glass. Low-E glass has a unique coating that reduces window heat loss and protects your home furnishings, carpets, and timber floors from New Zealand's harmful UV rays, which cause fading over time.
We also offer different low-E options to suit every Kiwi lifestyle and environment. By upgrading from our standard low-E coating, you can further augment and enhance the overall performance of your windows, and fine tune them for extreme climate conditions or passive solar heating.
Low-E thermal performance (U-value)
Low-E UV protection (ISO-CIE)
Argon gas sealed between the glass
Conventional double glazing usually only has air between the glass layers. Our windows feature argon gas, sealed between the glazing with structural spacers, to provide long-lasting insulation inside the glass.
A clear, non-toxic, and naturally occurring gas, argon gas is a better insulator than air. All of our joinery comes standard with an argon gas filling, ensuring you receive maximum thermal performance. Our glazing units are sealed with Intercept® spacers to ensure that the argon filling reamins in place for the lifetime of the window.
Argon filling performance
Peace and quiet inside and out
Our uPVC windows with double glazing reduce the loudness of outside noise, and help to keep inside noise inside. With larger glazing gaps, sound transference is reduced.
We also offer triple glazing, which helps keep out motorway and even airport noise. Triple glazing is ideal for loud environments.
Acoustic performance (STC)
Let fresh air in, keep insects out
Fully integrated, removable insect screens come standard on all of our windows. Sliding doors come standard with screen doors, and can be added as an upgrade to all swinging doors. Window screens are completely integrated and don't need to be removed in order to open or close the window, but are spring-loaded and can be removed for cleaning.
As an optional upgrade, we are excited to offer Flexscreen flexible steel mesh screens that are strong enough to keep out insects and birds, yet flexible enough to fold away without hardware.
The right tools for the job
Technical specifications, including CAD files, are available from our manufacturing partner, Sierra Pacific Windows. If needed, we can also assist your architect or designer with preparing window and door details, and will supply your council with any information required for consent.
Visit Technical Resources Library
*Technical data presented on this page is based on our standard (mid-range) uPVC window with minimum standard features. Actual product performance may vary based on window/door size, product range or material, and any optional upgrades requested.