Lütolf Dach und Wand AG – Your Expert for Roof and Façade Work in Villmergen, Freiamt, Aargau, and Zurich For over 70 years, Lütolf Dach und Wand AG has been your reliable partner for high-quality building envelope services. As the regional leader in flat roof systems and building waterproofing , we offer customized and long-lasting solutions for new constructions , renovations , and refurbishments . Our expertise covers a wide range of services, including pitched roofs , green roofs , sheet metal work , façade construction , scaffolding , and solar energy systems . Founded in 1946 by Xaver Lütolf, the company stands for craftsmanship, quality, and reliability. With a deep understanding of modern and functional roof and façade requirements, we deliver solutions that meet the highest standards. Our flat roof systems ensure effective building waterproofing , protecting your property from weather damage while optimizing energy efficiency. In addition to traditional pitched roofs , we focus on sustainable solutions like green roofs , which are not only visually appealing but also ecologically valuable and energy-efficient. Our skilled craftsmen in sheet metal work provide precise and aesthetically pleasing metal roofing and façade elements, while our façade construction enhances your building's exterior with both protection and style. Another key area of our services is the installation of solar energy systems , allowing you to embrace environmentally friendly and future-oriented energy solutions. Through comprehensive consultation and expert installation, we ensure the optimal use of solar energy for your home or business. Whether for new construction projects , refurbishments , or renovations , Lütolf Dach und Wand AG offers top-quality craftsmanship and professional solutions across the Freiamt , Aargau , and Zurich regions. Rely on our decades of experience and in-depth knowledge to bring your building project to success. Contact us for a comprehensive consultation and benefit from our tailored services, designed to meet your specific needs.

Bien GmbH is an architectural office based in Zizers, Switzerland , with a strong focus on multi-family housing and the careful renovation of existing buildings . The firm's work emphasizes the integration of architecture and context, combining functionality, clear design language, and long-lasting, sustainable solutions. Founded by architect Niculin Bisaz , Bien GmbH is deeply rooted in the Grisons region. The firm supports clients from concept development through planning, approval procedures, execution, and handover. Respectful use of materials, historical structures, and surroundings is central to the company’s philosophy. In the field of new construction , Bien GmbH specializes in compact, energy-efficient residential buildings , often enhanced with shared outdoor spaces such as gardens. Especially in village contexts, the office succeeds in creating harmonious ensembles through clarity and precise interventions. Each project meets high standards of comfort, design, and technology. The second pillar of the firm is the renovation of historic buildings . These are not simply restored, but transformed for contemporary use — with respect for materials, structure, and function. The results are spaces with character, depth, and long-term viability. Bien GmbH offers full services according to SIA standards : feasibility studies, preliminary designs, building permit applications, cost planning, tendering, technical planning, site supervision, and quality assurance. All projects are developed in close collaboration with local planners, engineers, and craftsmen. Projects are primarily located in the Grisons region — including Zizers, Chur, Landquart, Arosa, Davos, and the Engadine — but Bien GmbH also undertakes selected projects across German-speaking Switzerland. Clients include private homeowners, public bodies, real estate developers, and housing cooperatives. The promise is simple: to create architecture that is durable, responsible, and rooted in place.

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