It offers state-of-the-art windows with the best system in its class.

The unique range of properties – top quality, excellent thermal protection and great noise insulation – leads to lower energy costs for the home, while providing protection against intrusion.

IzoKlass windows reach thermal insulation values that have previously been achieved only with systems with high installation depths, and thus meet the energy saving requirements for the passive house.

With the new IzoKlass range you invest in a premium window that will be appreciated for a long time!

It is the German brand recognized worldwide for the
premium quality of PVC window and door systems.

With over 100 years of experience, the KÖMMERLING brand offers everything that is needed for future constructions, all the PVC profiles being made in Germany.

Advantages of the IzoKlass window

German solutions for windows and doors

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More than white…

The profiles of IzoKlass windows may be personalized in a variety of colours and textures.

You may see the full range of colours on the coloour charts present in showrooms or from Izotec field representatives.



Stejar auriu

Golden Oak



Gri antracit


Premium quality, designed for the future!

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