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The ALTI™ Composite system is a combined aluminium & timber window and door system.

On the exterior, it utilises the proven performance of aluminium joinery and design, on the interior, it utilises the thermal performance and character appeal of timber.


As a product, wood satisfies the senses – it is soft, possesses a natural appearance, and is warm to touch. ALTI™ draws from the timber characteristics of nature, beauty, craftsmanship, quality, and permanence. It combines this with the practicality and low maintenance benefits of Aluminium.


The style of your interior decor will be further complemented by a versatile range that includes; Bifolding Windows and Doors, French Doors, Casement and Awning Windows and ALTI™’s unique Double-Hung Window system. Each product has been manufactured to the exacting standards you would expect from a world-class company.

ALTI™ Joinery is available in various styles and configurations of windows and doors tailor-made to the unique New Zealand environment. The windows and doors provide aesthetic style, performance, durability and security as well as innovative features to suit the practicality of the Kiwi lifestyle.

All products are tested to comply with New Zealand Standard NZS4211.


Each feature of the ALTI™ range translates into a direct benefit. While the practicality of high strength aluminium ensures low maintenance to the exterior of your home, the natural warmth and beauty of timber instills a feeling of elegance to the interior.


ALTI™ windows and doors have been designed to complement any style of home. Offering the most extensive range of window and door styles, timber species and hardware options. ALTI™ windows and doors will beautify homes ranging from classic villas to contemporary apartments. The sturdy window frame profiles have been designed to replicate the solid appearance of timber.

The thermal efficiency of your windows and doors is achieved by integrating the insulating properties of timber with strong and low maintenance aluminium. Condensation can be minimised by double glazing which will provide you with further comfort and warmth.

ALTI™'s heritage is in wood joinery and many aspects of today’s product makes reference to the architecture of earlier times.


Homeowners love ALTI™‘s ability to produce flat and unobtrusive door sills of a similar shape to traditional timber joinery.

These are easy to clean and user friendly.

The ALTI™ system is manufactured by craftsmen with extensive experience in timber products who employ special care to ensure that the customer receives beautiful timber joinery of an exceptional standard.

The Practicality of Aluminium


The aluminium used by ALTI™ has been designed to complement the traditional appearance of timber, while offering a modern, high-performing joinery system.

Powder coated aluminium on the exterior of ALTI™ ensures easy maintenance and long-lasting good looks. No aluminium colour is shown on the interior. This means when it comes to décor design, you have far more flexibility working with the warm tones of timber, as opposed to aluminium joinery where the colour is the same inside and out.
So when choosing your ALTI™ colour, you only need to match or coordinate the exterior components of the home.

The durability of the aluminium means there is no need for regular painting. ALTI™ aluminium sections are a heavy commercial quality that, in combination with our quality locking systems, provide strong and secure joinery that is also very weather proof.

High Performance ALTI™ is based on a design platform commonly seen in commercial applications. All products are not only tested to comply with New Zealand Standards NZS4211 Very High Wind Zone, but have also been successfully proof tested to wind speeds of 254kph.

With many years of experience in composite windows, our Research and Development department has continued to lead the market in innovations to ensure that ALTI™ maintains its status as a premium joinery system.

Ecologically Conscious, ALTI™ can blend recyclable aluminium products with the ecologically friendly timber product 'Green Seal’. Green Seal uses a proven, patented process and a sustainable resource (radiata pine) to produce a timber that has the characteristics of many endangered tropical hardwoods.



Find a local ALTI™ Fabricator:

Given ALTI™'s uniqueness, we have specified Fabricators across New Zealand. Each are certified members of the Altus Window Systems network.


Auckland North:
McNaughton Windows & Doors

Waikato & BOP: Fisher Windows Rotorua - Window Warehouse

Central North IslandVistalite Manawatu - Burne Aluminium

Lower North Island & Wellington: Fisher Windows Wellington

Upper South Island:
Fisher Windows Marlborough

Canterbury Region:
Rylock Canterbury

Otago Region:
Vistalite Otago - E13 Performance Windows

Southland Region:
Vistalite Invercargill - Lewis Windows


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