PVC Windows

PVC windows Szczecin

PVC windows

Are you looking for the perfect uPVC windows for your home? Do you care about maximum thermal and acoustic insulation? You've come to the right place, at GM PLAST Window and Door Factory we offer the highest quality uPVC windows on the market, at the most competitive prices. We have been a window manufacturer for over 25 years. First and foremost, our windows are designed with maximum comfort and security in mind and are available in a range of modern styles to suit any home. Our windows are also some of the warmest, thanks to the innovative technology of the systems we use. They provide excellent thermal insulation which will save you money on heating your home.

These are 7-chamber systems with a centre seal and an installation depth of 88 mm! Put simply, the deeper the build depth, the warmer the window. The centre seal is a new innovative solution used in our systems. Its task is to ensure additional insulation of the room and provide better thermal and acoustic performance of the window. Applicable for passive houses according to ift-Richtlinie WA-15/2-Coefficient of thermal insulation Uf=0.95 W/(m²K). Our windows include a barrier-free, thermally divided threshold.

Reduce your electricity bills by choosing windows Kömmerling 88 even by 30 % thanks to 7 chambers, a centre seal and an installation depth of 88 mm!

uPVC Windows

  • System 76 AD

Our windows are made from high quality uPVC, making them very strong and durable. They are also very modern and will add style to any building. They are available in a variety of colours and are made to order to fit any size opening. The windows are also very energy efficient and will undoubtedly keep your home warm in winter. PVC windows at GM PLAST are the perfect combination of comfort, security and modern design. They are available in a variety of styles and designs to suit your needs. With good prices and the latest technology, our PVC windows are the warmest and best choice for your home. When you buy from us, you are assured of the lowest price because you are buying directly from the manufacturer without intermediaries. We will deliver the windows to you and install them. We offer plastic windows that will undoubtedly save you money on your bills!

  • Hazelnut

PVC windows Choose your colour

Why choose our plastic windows?

  •  They are robust and solid
  • Rapid production
  •  Equipped with Roto NX branded hardware
  •  They are aesthetically pleasing and will fit into any interior
  •  Lead-free profiles, making them environmentally friendly
  • They have a very good price/quality ratio 
  • Easy to maintain (care and maintenance)
  •  Kömmerling is a premium brand with over 100 years of history
  • High-quality burglary protection (RC 2 or RC 3)
  •  Thermal insulation Uw=0,72 W/(m²K) which means they are energy efficient
  • Choice of double or triple glazing packages from 16 to as much as 50 mm thick
  • Improved quality of life through sound insulation of 35 db
  •  Simple and professional installation thanks to a wide range of additional profiles
  •  Our windows are characterised by high operating comfort, exceptional functionality and a long service life
  • The micro-ventilation integrated as standard in the hinge means that no additional frame component is required and provides additional ventilation, which increases living comfort.
PVC windows Police

PVC Windows

Made-to-measure uPVC windows:

Choose your system:

Kömmerling 76 AD

 the flagship economic product for the most demanding

Kömmerling 76 MD

6-chamber profile designed for maximum energy saving and acoustic insulation of the building

Kömmerling 88 MD

 7-chamber profile with passive house capability, large glazing spectrum, high user comfort, easy care, barrier-free, thermally divided threshold - a system that is ahead of the standards.

Kömmerling 70 AD

Most optimal installation depth.



The systems are subject to a variety of inspections, resulting in CE marking and declarations and certificates for all variants.


Don't wait, contact us now for a quote and our specialists will respond within a maximum of 24 hours.

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PVC Windows

PVC windows Police

PVC Windows

GM PLAST Window and Door Factory is certainly a renowned manufacturer of windows and doors. The company's products are undoubtedly known for their comfort, safety and modern design. PVC windows are indeed some of the most popular products in the company's range. Plastic windows are made from high quality materials and offer a very good price/quality ratio. The technology used in these windows is also top of the range, making them some of the warmest on the market. It is noteworthy that we are a window manufacturer with experience for 24 years.

PVC windows

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Contact us now for a quote and expert advice
+(48) 507069700 
| szymanowicz@gmplast.pl