The forster unico xs system is made from 100% steel and dispenses entirely with synthetic insulating materials. Numerous versions allow for outstanding flexibility, from outward-opening top-hung and turning windows to inward-opening turn/tilt-turn windows and fixed glazing. The extremely filigree yet robust system allows for leaf sizes of up to 1440 x 2440 millimetres on turning windows and even up to 2378 x 2378 millimetres on outward-opening windows. 

The advantages of the freely bendable profiles are exploited to the full both in new buildings and in listed industrial buildings. The result is rooms that are filled with natural light and feature diverse creative qualities. The outward-opening window types combine recessed geometries with scissor fittings that limit the opening angle sensibly. The inward-opening windows are available as flush solutions and can also be designed with Class RC2 burglary resistance on request.'

 A frameless design is also available for meeting the highest standards.

Why Choose Forster unico Steel Profiles?

• Thermal Efficiency: Achieving Uw values as low as 0.9 W/(m²K) for superior insulation.

• Sustainability: Constructed entirely from recyclable steel without synthetic materials.

• Versatility: Ideal for both modern constructions and heritage renovations.

• Security: Certified up to RC3 for burglary resistance and FB4 for bullet resistance.

• Aesthetic Appeal: Slim profiles that maximize natural light and architectural elegance.

Single-leaf and double-leaf doors with forster unico xs are characterised by uniquely narrow face widths. They bring together high-quality design with outstanding insulation values and sound insulation of up to 46 dB. In terms of building safety, the system also comes in a robust yet filigree version for use as an anti-panic door. 

Thanks to the freely bendable profiles, they are suitable for both renovations in line with requirements for listed buildings and high-quality new buildings. The highly thermally insulated profile design of the narrowest flush doors in the Forster portfolio is made entirely from steel. As a result, the system offers maximum freedom of design, from selection of the geometry through to the combination with different glazing beads. The result is creative scope for solutions that are both aesthetic and have optimal energy efficiency.

Your benefits 

• Extremely narrow face widths 

• High thermal insulation

 • Exceptional freedom of design on the building shell

FROM 23 MM. forster presto XS system allows flush-mounted, offset doors and fixed glazings to be installed in interior spaces in a wide variety of ways. The slim profiles allow intricate designs to be constructed to create an elegant, timeless look, while the high transparency of the glass elements ensures plenty of light is admitted to create a sense of spaciousness and comfort. 

Profiles with minimal face widths from 23 mm are available to create modern looks or designs that will fit well in protected historic buildings. The newly developed range of profiles, matching accessories and fittings are easy, convenient and very safe to use. The unique steel profiles made of 100% steel are particularly durable and environmentally friendly because they are completely recyclable.

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Portamet has established itself as one of the leading global manufacturers of steel windows and doors, delivering top-quality products to clients across Europe, North America, Asia, and beyond. By partnering with renowned profile system manufacturers like Forster (Switzerland), we combine Swiss precision engineering with our own advanced manufacturing expertise. The result is superior steel door and window solutions that meet international standards for performance and aesthetics. Our portfolio ranges from thermally broken exterior windows and doors to bespoke interior partitions, all crafted with meticulous attention to detail.

What sets Portamet apart is our unwavering commitment to quality craftsmanship and customer satisfaction. Every steel window or door is precision-fabricated by skilled experts at our state-of-the-art production facilities. We employ modern techniques (such as laser-cutting and CNC machining) to ensure each frame fits exactly to specifications and operates flawlessly. Our finishing processes (galvanizing, powder-coating, etc.) guarantee that your steel frames are not only beautiful but also highly resistant to corrosion and wear over time.

• Global Experience: We have successfully delivered and installed Portamet steel windows and doors in projects worldwide. From luxury residences and modern offices to hotels and industrial conversions, our team is experienced in handling international logistics and on-site coordination. No matter where your project is located, we can supply steel windows worldwide, meeting all relevant local building codes and requirements.

• Comprehensive Solutions: Portamet offers a complete solution for steel fenestration. We assist with design and engineering, helping you choose the optimal Forster steel profile (or other steel system) for your needs. Our product range covers thermally broken steel windows, fire-rated doors, oversized glass walls, and more. This means you can source all your custom steel openings from one reliable manufacturer, ensuring consistency and compatibility across your project.

• Customization & Design Freedom: As a manufacturer, we have the capability to produce steel windows and doors tailored exactly to your specifications. Unusual sizes, special glazing, custom mullion designs, arched or curved windows – we handle it all. Portamet’s use of flexible systems like Forster Unico and Presto means architects have tremendous freedom to realize their vision in steel and glass.

• Quality and Reliability: When you work with Portamet, you are choosing quality materials and proven systems. Our steel doors and windows are built to last for decades. We perform thorough quality checks for structural integrity, smooth operation, and finish. Moreover, we pride ourselves on reliable lead times and professional service. From the initial consultation to after-sales support, our team is responsive and dedicated to your success.

With Portamet, you gain a partner that is as passionate about your project as you are. We merge beautiful design, advanced steel technology, and masterful fabrication to create doors and windows that truly elevate your building. It’s no surprise that Portamet-manufactured steel windows and doors are featured in premier properties around the world, reflecting our reputation for excellence.

Ready to enhance your project with premium steel windows and doors? Portamet’s team is here to turn your vision into reality. As an expert manufacturer of Forster steel profile systems, we can craft the ideal solution tailored to your needs – whether it’s a modern thermally broken window wall or a set of classic steel French doors. Contact us today to discuss your project and get a free, no-obligation quote. We’ll guide you through profile selection, design options, and technical details to ensure you get the perfect steel doors and windows for your building. Transform your space with the strength, elegance, and longevity of Portamet’s steel solutions. Get in touch now and let’s build something remarkable together!