Mestre Raposa | OTIIMA Official Partner
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Mestre Raposa International®, known for its experience and German precision, together with its long-standing Portuguese partner Otiima, specializes in high-end minimalist windows, doors, and sliding systems. Our solutions include the largest operable minimalist sliding elements, as well as high-performance windows, pivot systems, descending, and guillotine mechanisms—all designed with slim profiles for a refined, modern aesthetic. With hundreds of exceptional architectural projects across Portugal, Europe, and worldwide, we continue to set new standards in modern design.

Minimal sliding windows

Guillotine windows

Pivot doors

Curved glass

SLOPED SYSTEM

SLIDING SKYLIGHTS
Mastering Minimalist Architecture
Recognized as Portugal’s top company in 2023, Mestre Raposa remains a trusted partner for discerning private clients. With over 25 years of experience and a strong international network through the German, English, and French Chambers of Commerce, we stay at the forefront of innovation, bringing cutting-edge solutions to luxury residences.
Cutting-Edge Track Systems for a New Era of Minimalism
Otiima Plus – An evolution of minimal frame systems, offering the most sophisticated version of a flushed frame.
Otiima Fusion 1.0 – An advanced system seamlessly integrated into architectural materials, featuring a hidden header, sill, and jamb frames.
Otiima Vision – A groundbreaking system that minimizes the visibility of aluminum, concealing the top and bottom rails for a sleek, uninterrupted view.
We work closely with homeowners, architects, and designers to create bespoke solutions that blend precision, durability, and effortless functionality. Inspired by Portugal’s leading architects—such as Aires Mateus and OODA Architects—our minimalist systems help homeowners embrace a lifestyle of openness, simplicity, and sophistication.
Visionary figures like Kengo Kuma, Siza Vieira, and Renzo Piano have shaped Portugal’s thriving architectural scene, where innovation meets timeless design. With Otiima Minimal Systems, we empower architects and homeowners alike to bring exceptional, boundary-pushing visions to life.
Gulbenkian Modern Art Center
Architecture Kengo Kuma & Associates + OODA + VDLA | Photography Fernando Guerra
Explore our range of panoramic windows and minimalist sliding systems at www.mestreraposa.de/en. For inquiries or to learn more about our products and services, please feel free to contact us. Schedule an appointment at our showroom and let us help you create your own exceptional space.