Timber-aluminium windows

Internorm timber-aluminium windows combine the natural warmth of timber with the durability of aluminium, creating a window system that delivers exceptional performance without compromising on design. Engineered and manufactured in Austria, they are an ideal choice for Passivhaus, self-build and renovation projects where energy efficiency, sustainability and architectural quality are paramount.

Natural Beauty. Exceptional Performance.
The interior timber finish brings warmth, character and timeless elegance to every living space, while the weather-resistant aluminium cladding protects the window from the elements and requires virtually no maintenance. Combined with Internorm's advanced triple glazing and innovative insulation technologies, timber-aluminium windows achieve outstanding thermal performance, excellent sound reduction and advanced security.
To further enhance insulation, a specialist foam core between the timber and aluminium profiles minimises thermal bridging, helping to achieve exceptional U-values, avoiding mould growth, and creating comfortable indoor temperatures all year round.

Designed Around Your Home
Every Internorm timber-aluminium window is manufactured to order and can be tailored to complement your home's architecture and interior design. Choose from a wide selection of RAL colours for the external aluminium cladding, beautifully crafted timber finishes including spruce, larch, oak, and walnut, and a choice of premium handles and accessories.
For complete design flexibility, timber-aluminium windows can also be seamlessly combined with Internorm across all four design styles - allowing you to enjoy the natural warmth of timber in living areas while selecting uPVC-aluminium for bathrooms, utility rooms and other moisture-prone spaces.

Designed for Passivhaus and Sustainable Homes
Internorm timber-aluminium windows are engineered to meet the demands of today's most energy-efficient homes. Their exceptional thermal insulation helps reduce heat loss, lower energy consumption and create a consistently comfortable indoor environment throughout the year.
Ideal for , EnerPHit and low-energy building projects, these high-performance windows combine sustainable natural materials with advanced Austrian engineering to deliver long-term comfort, durability and outstanding energy efficiency.

Enjoy the warmth, cosiness and naturalness of timber. Next to timber types spruce and larch, we can also offer you oak, ash and walnut. These can be designed in many colours.

Painting windows will be a thing of the past! Due to the aluminium clad, the timber is protected from weather influences. A wide range of colours offer countless design possibilities.

Internorm timber-aluminium window HF 410 unites technology & sentiment and stands out through innovative technology, highest stability and more colour choice and attention to detail. We will show you a video of the historical development of the Internorm composite window; starting with the product idea to the sales in the showroom of our Internorm distribution partners. The different costumes of the dancers symbolise the materials timber, glass and aluminium.