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About us

  • Established: 1989

  • Capital: polish 100%

  • Industrial work
         area: 3 500 m2

Constans is one of the longest operating company in the window branch in our region – we product windows for over 20 years. The long-term experience let us offering the products of highest quality, modern and durable.

Thanks to the cooperation with manufacturers of high class materials (REHAU, GEALAN - profiles, WINKHAUS - hardware, ALUPROF, REYNAERS - aluminum systems) we are sure, that we offer You products for many, many years.

We are manufacturing the doors and windows of PVC and ALUMINIUM. Our company has the most modern in the region, three large production halls with industrial area as of 3500m2 and with computerized technological production lines (for both pvc and aluminum windows, doors).

The outstanding quality of our products has been appreciated by the customers from Western Europe. Constans, one of the most significant manufacturer in the area, has become one of the biggest Polish exporter of windows in the voivodship. With the share of export above 80% over the total sale, our company exports goods to such countries as: Germany, Belgium, The Netherlands, France and Luxemburg.

We encourage the customers, who care about trusted quality and long - lasting comfort and who are willing to take the opportunity of trading with the company having such a long experience on the market, to contact us.



  • Over 20 years of experience

    During such long-term operating in the windows business we can take pride in having a huge amount of regular customers satisfied with our products and services, while our windows and doors are installed in thousands of houses not only in Poland but also in Europe (Germany, Belgium, Netherlands, France, Luxembourg, Spain).

  • Products of highest quality, trusted suppliers

    Many years of experience let us choose and work with the best, trusted suppliers manufacturing the materials of the highest quality (REHAU, GEALAN, WINKHAUS, ALUPROF, REYNAERS,OBST) in order to provide our clients with the products of high thermal and acoustic insulation.

  • Specialized personnel

    Our Team is composed of highly trained people experienced in the windows industry – they always offer a professional help.

  • Made to measure products

    We can offer a wide range of products made to measure, with varied colors and shapes.

  • Wide range of products

    We offer a wide range of products, depending on the customers’ needs and means we can provide the product that meet all the customers’ expectations.




Windows-Doors-Roller Shutters Winter Gardens - Qualität Fenster aus Polen - Alufenster, Hebeschiebetüren, Kozijnen uit Polen, Poolse kozijnen, Polen kozijnen: Constans Windows-Doors-Roller Shutters Winter Gardens