Bertrand Windows and Doors


A modern system made of PVC and aluminum.

KOMBISYSTEM ALU BERTRAND are technologically advanced products with a depth of 83 mm.

Installation depth


Number of chambers in the frame



0.8 W/(m²K)

  1. Installation depth 87 mm
  2. 6-chamber system
  3. The heat transfer coefficient for the window is Uw = 0.8 w/m2K
  4. Additional sound insulation thanks to an additional seal
  5. Increased aesthetics with STV
PVC-ALU windows are easy to care for, operate and maintain
The windows are resistant to weather conditions
Thanks to their excellent acoustic parameters, the windows effectively reduce noise
Thanks to the materials used, the windows are very durable
Energy saving
Thanks to the use of an additional seal, the windows are heat-insulating and energy-saving
The windows are ecological and fully recyclable

KOMBISYSTEM ALU BERTRAND are technologically advanced products with a depth of 83 mm.

The width of the system, six chambers in the frame and sash, the quality of the materials used and a coherent system of seal arrangement in three planes guarantee excellent thermal and acoustic insulation. This window meets even the highest expectations. It achieves the coefficients used in passive construction. Increased statics and anti-burglary class zosheights achieved by using the innovative STV system - permanent gluing of the glazing unit to the sash using a static-thermal tape.

KOMBISYSTEM ALU it has an aluminum cover on the outside, which makes it even more elegant resistance and longevity windows. Applying an overlay aluminum it also offers additional personalization options.

Cross-section through a window

Product KOMBISYSTEM ALU comes in the following versions

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