Internorm - a worldwide leader in the production of Passivhaus aluminium and timber windows.

Altitude Aluminium is delighted to be a certified distribution partner of Internorm.

Click here to view the Internorm Door Brochure

Click here to view the Internorm Window Brochure

Click here to design your own Internorm door using the Door Designer

Internorm provides high-quality doors and windows from Austria. Their products stand for excellent quality, innovative technologies and individual design possibilities. As an Austrian business they are continuously setting new standards in the window and entrance door market. 

Their employees are manufacturing your dream windows and doors in their three production sites in Austria (Traun, Sarleinsbach and Lannach). The "total window system concept" is completely in their own hands - from research and development, our own extrusion, glass production and ultra-modern, sophisticated production technologies to logistics. 

Employees are specialists who have a love for detail and act with much passion and inventiveness. Company-own research departments are continuously developing new products and technologies so they can offer even more comfort and security.

Continuous expansion
200 million euros have been invested into the Internorm business during the last ten years to fulfil the high requirements of product innovations.

Making architectural styles bespoke.

Tastes differ, architectural styles vary and home types are very individual. Windows and entrance doors play an important role in this and emphasise architecture and therefore the character of a house considerably.

Internorm windows and products are therefore available in different designs. Do not compromise your dreams when designing your living areas and choose windows and entrance doors which match your style. You can now create your own door using the new door designer.

Windows are grouped into four design styles so you can quickly find the windows which match your architecture:

STUDIO: This architectural style is very puristic in its design. Clear shapes and minimal design are typical. The minimalistic living style is reduced to the basics.

HOME PURE: Bright, light-flooded rooms create space. Straight-lined shapes and modern design emphasise the architecture. 

HOME SOFT: This building style exudes harmony and cosiness, homely living comfort which radiates cosiness and support.

AMBIENTE: Art nouveau, traditional, classic houses and elegant estates describe this architectural style. A composition of timeless classic and elegance.

Worldwide responsibility to produce high-quality windows

Each Internorm window is produced exactly according to your wishes and custom-made.

Thus, our window-products are available in the most diverse window sizes, window versions and window designs such as frameless windows, flush or square-edged frames or even windows with rounded edges of sash and frame. The windows will match any chosen architectural style and design of your house.

Perfect burglary protection, excellent thermal insulation and sound-protected windows are a matter of fact with Internorm. We put great emphasis on sophisticated design and excellent processing into the smallest detail of every window. Extensive window hardware offers you countless possibilities for your design. We not only offer numerous handles in various designs, but also window hardware with designer closing elements. They look good and even make cleaning of the windows easier.

Besides turn, turn-tilt or tilt windows, our products are also available as fixed glazing, balcony door, patio door, sliding window or door, lift-sliding door, large-scale glazing and as basement window.

Years of


We will push the boundaries to make the project come true

Class service


We deliver an innovative range of products to the highest specification

Years warranty on all we


We provide a 10 year warranty on all products that we install

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