Pivot door – the fascinating entry door

The pivot door gives a wide and generous opening and simple modern appearance, perfectly fitted to contemporary architecture. As an alternative to the sliding glass doors or conventional revolving...

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...

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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