The 7STARS system is an exclusive QFort product. It is the ideal option for reducing the energy consumption in your dwelling by using the PlanistarSun glass as standard. In addition, the 7STARS system has an appealing design (classic – straight) provided by the hidden hinges, which are also offered in the standard version.

Other technical specifications:

  • PVC profiles with 7 chambers both in the sill and in the frame
  • width of PVC profiles: 85 mm (mounting depth)
  • thickness of the outer wall of PVC profiles ≥ 2.5 mm
  • class S profile, certified for use even during extreme weather conditions in severe climates
  • galvanized steel reinforcement: 1.25 mm – 3.2 mm
  • three types of gaskets
  • easy to clean
  • very high tightness against wind, rain and dust



The 7STARS system is an exclusive QFort product. It is the i



The joinery, a very important element of QFort windows and doors, is produced by the German company Winkhaus AG, with the longest experience in window and door joinery.

It is extremely resistant to corrosion, the window seal can be manually adjusted quickly and accurately and it has an enhanced anti-burglary security system due to its standard steel bolts and safety pads.


QFort windows are equipped with Hoppe Secustik handles. The Secustik safety system allows the handle to be operated only from the inside so that the window cannot be opened from the outside by using another handle.

The handles are available in matt titanium in the standard offer or in white, bronze or gold in the optional one.


For optimum sealing against wind, dust and bad weather, the QFort windows are equipped with silicone rubber gaskets in the following colours: light grey for white profiles, black and caramel for coloured profiles.


Another element that ensures an optimal window tightness is the hinge. QFort windows are equipped as standard with strong hinges that are protected by matt titanium masking caps. You can also choose caps in white, bronze or golden. Optional: hidden hinges are a detail that is not visible, but which gives the home an extra bit of design and elegance. They keep the safety and comfort elements of standard joinery and provide a great aesthetic advantage due to the lack of visible hinge elements.

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