Best product innovation award

As part of the Architects' Darling Award 2019, our pivoting door cleared the way again and secured the silver product award in the category best product innovation.

Security window as burglary protection

The cold season is here and with it the need to spend a lot of time in one's own four walls (and windows). In your home you want to feel safe and secure at all times. With the safe air-lux sliding...

Double Winner German Design Award 2020: descending window & pivoting door

In the context of the German Design Award 2020, air-lux is winning twice: both the descending window and the pivot door are among the winners in the category "Excellent Product Design".

Reference properties

Zurich 7

Private residence in Zurich, flowing room sequence, organic shapes combined with strict contours.

Reference Grenzstrasse

Four residential studios in rear courtyard, steel beam supports with air-lux façade system


air-lux sliding windows – a product from Krapf AG, a leading metal and façade construction company

Innovation is our tradition. We have been using our extensive expertise and relationships with architects, façade planners, general contractors and building owners to implement solid, high quality and durable solutions for more than 50 years.

Krapf AG, your partner from Engelburg/St. Gallen

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