Score points worldwide with Engelburger Power.

Whether a villa in Majorca or a special order in Los Angeles: as one of the leading Swiss metal and façade construction companies, we develop innovative solutions for every challenge with our patented air-lux system.

Lukas Knechtle, Managing Director and Owner, air-lux Technik AG

“The success of air-lux is based on our team spirit. Whether developers, installers or sales partners – we think of ourselves as a family that can achieve the exceptional together.”

We stand for three values.

These three values are typical of Krapf AG and air-lux – this is how we are known,
how we work and how we ensure our success.

Creative.

We are inventive, flexible
and committed.

Sure.

We are experienced, reliable
and solution-oriented.

Competent.

We are simple, honest
and precise.

Creativity, technology and craftsmanship perfectly combined

We believe that there are no architectural limits to glass façade construction. We want every client and architect to be able to make their visions a reality – without compromises. That’s why we developed air-lux: our glass façade system, with sliding windows flush to the floor and ceiling and a patented air-assisted sealing concept, combines creativity, technology and craftsmanship – in top quality. From individual sliding windows to multi-storey glass façades. In this way, we give architects all the freedom to interpret and define light and space exactly according to their ideas.

Competence in metal and façade construction since 1964

In 1964, Gebhard Krapf founded Krapf AG with two employees. Thirty years later, he handed the company over to Heinz Sauter. In 1999, Krapf AG moved into its new office building in Engelburg, St. Gallen. A year later, it already employed 30 people. In 2004, Krapf AG developed the air-lux glass façade system, which was flush with the floor and ceiling. With large sliding windows of up to 18 m² and a unique patented sealing concept, it caused a sensation far beyond the Appenzell region.