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BEWISO is an Austrian based window company that combines professional, hand craftsmanship with state of the art technology standards. The slim frames of their sash replacement windows are easy to install and smoothly blend in with the look of historical buildings.
The use of environmentally friendly insulation and optimized frame design lower energy costs. The certificate for the highest passivhaus classification, ph A, guarantees it.
Windows from BEWISO withstand wind and weather, achieve high sound insulation, thanks to multiple glazing, and can be combined with modern alarm systems. Models with multiple casements, various latches, different colours and other custom features are available upon request.