Internorm

Internorm is an Austrian window and door manufacturer. Its own materials describe it as an established Austrian business producing high-performance triple glazed windows and doors at three production sites in Austria — Traun, Sarleinsbach and Lannach — and presenting itself as Europe's leading window brand. Its product range includes uPVC and uPVC-aluminium windows and doors, timber-aluminium windows, aluminium and composite front door systems, and glass, supported by in-house research and development, own extrusion and glass production.

Internorm's own history page states that 2026 marks 95 years of market and product experience and 60 years of strong branding, describing Internorm as Europe's leading window brand. In 2021 the company marked its 90th anniversary, describing its development from a one-man company to the largest international window brand in Europe, with the third generation — Anette Klinger, Christian Klinger and Stephan Kubinger — expressing pride in this tradition and innovation. In 2020 the I-tec Secure locking mechanism became standard in the UPVC or UPVC/aluminium window KF520, with security class RC2N standard (with lockable handle) and up to RC3 upon request. In 2015 the 500,000th entrance door was produced; the company notes that in 1998 it put the first aluminium entrance door with foam insulation core on the market, and that it offers four aluminium door systems and two timber/aluminium door systems. In 2012 Internorm developed its first three revolutionary I-tec innovations, including I-tec secure (fully integrated locking) and I-tec shading (described as the first photovoltaic blind in the window with integrated blinds). In 2002 it introduced FIX-O-ROUND technology, gluing glass panes to the sash for the first time, and in 2001 it started timber-aluminium window production. The company's quality page states that its bespoke, high-performance triple glazed windows and doors are manufactured at three high-tech production sites in Austria — Traun, Sarleinsbach and Lannach — and that its heritage and focus on quality and sustainability result from in-house research and development, own extrusion, glass production and ultra-modern production technologies. Traun is described as Internorm's head quarter and the location of the original manufacturing site, where uPVC and uPVC-aluminium windows and doors, entrance doors, as well as glass are produced. Internorm has been in Sarleinsbach since 1977, where it describes itself as the biggest employer in the area and the most up-to-date windows production plant in Europe. Timber/aluminium products are manufactured in Lannach.

European high-performance quality windows and doors from Austria; self-described as Europe's No. 1 / leading window brand.

• KF520 uPVC or uPVC/aluminium window

• Aluminium front door systems

• Timber/aluminium door systems

• Front doors

• I-tec innovations

1. 1Internorm official website homepageinternorm.com
2. 2History | Internorm USinternorm.com
3. 3Doors | Internorm USinternorm.com
4. 4Quality | Internorm USinternorm.com