In the company Mizarstvo Košak d.o.o. we have developed a new type of window, which introduced new guidelines in the field of window industry. The window is characterized by a modern design, which is excellently incorporated into modern architecture. The window is completely aligned from the inside and outside, which allows the installation to be in the line with the facade. It has an additional third seal and has no visible draining profile.


GLASS: Three-layer insulated glass with thermal spacer. By choosing glass, we have to decide for the most appropriate acoustic and thermal transmittance.
FRAMEWORK: It enables one-hand opening along the horizontal and vertical axis. We use the framework of a renowned German manufacturer.

WOOD: Three-layer laminated wood of the highest quality, without visible length joints of 78 mm thick, is used. Most of our products are made from larch or spruce. When choosing wood, we adapt to the wishes of the investor.

SURFACE TREATMENT: For surface treatment, we use the Remmers system, which, due to the four times application, provides the greatest protection against external factors. The customer can choose the colour according to our samples or the RAL colour scale.

SEAL: High quality plastic seals are installed in the windows. The characteristic of such seals is to remain flexible for a longer period of time than seals made on the basis of rubber.
0,6 W/m2K Ug
1,3 W/m2K Uf
0,9 W/m2K Uw
78 mm Thickness

Eco subsidy

Our products achieve all needed standards for the Eco subsidies. Customers can receive a subsidy for renovations and new buildings. We provide all the documentation customers need, to apply to Eko sklad (Eco fund).

For more information click the lionk below:

Eco subsidys

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