BUILDING WITH EXPERIENCE AND QUALITY The roots of our company go back over 100 years. Since then, we have been building in the "La Plaiv" region here in the Engadine and surrounding areas. From that time, we have carried forward not only our experience but also a deep awareness of tradition and quality. Over the years, we have added a high-tech machinery fleet, the integration of innovative building methods, and modern management. Peter Hotz successfully led the company for 28 years; since 2016, I, Gian Marco Hotz, have taken over the management. For both of us, building is in our blood, and we share a passion for sports. Thus, Rocca + Hotz AG has sponsored, among others, the Swiss skier and 2014 gold medalist Sandro Viletta, who hails from our hometown, La Punt. Rocca + Hotz AG has a century of experience, a love for craftsmanship, curiosity for the present, and a readiness to face the new challenges of our time—values on which one can truly build. OUR SERVICES: CIVIL AND STRUCTURAL ENGINEERING • Civil Engineering • Structural Engineering • Road and Bridge Construction • Garden and Landscape Design RENOVATION AND REMODELING • Renovations • Remodeling • Concrete Cutting • Core Drilling THE TRADITIONAL MASON • Small Masonry Work • Renovations • Interior Renovations • Plastering and Gypsum Work • Drywall Construction • Exterior Arrangements • Garden Seating Areas • Core Drilling • Balcony Renovations • Waterproofing INTERIOR RENOVATIONS • Renovations • Remodeling • Concrete Cutting • Core Drilling TRANSPORT AND MACHINERY We have the necessary experience for any type of project, regardless of size, the right machines and tools, the correct know-how, and, above all, skilled professionals. We are happy to assist you from planning to billing. Do not hesitate to contact us.

ABOUT US With over 40 years of experience, Idrosun SA is today a well-established player in the wellness and building technology sector. Its story began in 1981 with a family vision: to offer tailored solutions that strike a balance between technical innovation and human care. Idrosun SA was born from the intuition of Willi Maag, who founded the company with the goal of uniting craftsmanship, technical expertise, and design quality. Over the years, the company has expanded its fields of operation, integrated advanced technologies, and established itself as a trusted partner for private clients, engineers, architects, designers, and businesses. Today, the company is led by Simon Maag, who took over from his father and now fully owns the company, continuing its development with a forward-looking approach. From the very beginning, our way of working has stood out for its complete and structured method: every project is followed through all its stages – from the first consultation to the execution and long-term assistance – with consistency and care. An approach that has shaped the company’s identity and continues to define how we work. A story that keeps evolving, building new spaces of well-being every day. WE FOLLOW PROJECT STEP BY STEP We are dedicated to the well-being, comfort, and energy efficiency of our clients – both private and professional – combining cutting-edge technology with refined design. We manage every project in all its phases, from initial consultation to maintenance, ensuring rapid intervention and continuous support thanks to our emergency service active 24/7, 365 days a year. TAILORED DESIGN We create exclusive, custom-made environments that combine aesthetics and functionality. CONSTRUCTION AND INSTALLATION From construction to installation, we follow every step with precision. MAINTENANCE AND REPAIR Professional service to ensure durability and optimal performance. TECHNICAL CONSULTING AND AFTER - SALES Expert support for every need, even after installation. PRODUCT AND ACCESSORY SALES A complete range of solutions for the care and management of technical systems. OUR SERVICES Each project begins with the desire to create authentic, lasting, and personalized well-being. Our solutions combine technical know-how with aesthetic sensibility to shape functional and welcoming spaces, perfectly balanced between technology and design. Our work is structured into five main areas, all developed with the same focus on quality, efficiency, and sensory experience: WELLNESS Indoor and outdoor pools, whirlpools and spa tubs, saunas, cryo saunas and Turkish baths, cold plunge systems, biopools and natural swimming ponds. WATER TREATMENT Pumping stations and pressure boosting systems, treatment of grey and clear water, softeners and reverse osmosis systems, water distribution and irrigation systems, advanced filtration systems. HEATING AND COOLING Heat pumps and low-temperature systems, radiant heating and cooling systems, solar thermal systems for hot water production. VENTILATION Controlled mechanical ventilation systems, air treatment and dehumidification solutions, heat recovery for improved energy efficiency. AUTOMATION AND CONTROL Electrical panels and regulation systems, advanced home automation and remote control, photovoltaic systems for energy production. PRODUCTS AND ACCESSORIES Chemical products for water treatment, cleaning robots and accessories for pools and wellness areas, pool covers and safety solutions.

If you're looking for a comprehensive solution for the maintenance and care of your home in Pontresina and throughout the Engadine, Hauswartung Reinigung is the company you need. We're proud to offer a wide range of high-quality services, including cleaning, laundry, caretaking, gardening, maintenance work, repairs, snow removal, and moving. Our mission is to take care of your home as if it were our own, providing a complete and personalized service at 360°. We strive to ensure that your home is always in perfect order and in optimal condition, so you can enjoy your free time to the fullest. Our team is made up of highly qualified and dedicated professionals who work with passion and precision to ensure the best possible results. We're able to meet the needs of every type of customer, whether you need a regular cleaning service, an urgent repair, or a complete move. Our main strength is the satisfaction of our customers. We're very proud of the positive feedback we continuously receive and we constantly strive to exceed their expectations. For us, flexibility and optimal execution of the work performed are essential. Customer trust is very important to us, and we always do our best to satisfy it. We're open to any request and adapt to the individual needs of our customers, to ensure that every job is carried out in the best possible way. Thanks to our attention to detail and high service standards, our customers know they can count on us to take care of their home. Contact us today to learn more about how we can help you take care of your home in Pontresina and throughout the Engadine. With Hauswartung Reinigung, your home will always be in good hands." OUR SERVICES Cleaning At Hauswartung Reinigung, we offer a comprehensive and high-quality cleaning service for our clients. We specialize in cleaning for offices, private homes, condominiums, and apartments, providing a customized service for every type of client. Our maintenance cleanings are designed to keep your home or office always in order, ensuring a clean and welcoming environment. Additionally, we offer post-moving cleaning services to ensure that your new home or office is ready to be used. Our fine cleanings are perfect for special events, such as parties or meetings, to ensure a flawless environment. We're also able to offer construction cleanings, to remove dust and debris after construction or renovation work. We bring our own equipment and professional cleaning products, ensuring a thorough and complete cleaning. LAUNDRY We also offer a high-quality laundry service for household, bedding, and delicate fabrics. Our laundry service is designed to ensure that your laundry is always clean and fresh. We also take care of difficult stains, using specialized products to remove them completely. In addition, we offer an ironing service to ensure that your laundry is always perfectly ironed and ready to use. Furthermore, we also offer a carpet and rug cleaning service that uses professional machines for thorough and complete cleaning. With our laundry service, you can be sure that your laundry and fabrics are always treated with the utmost care and attention to achieve the best possible results. FACILITY MANAGEMENT AND HAUSE MAINTENANCES The concierge service offered by Hauswartung Reinigung in Pontresina is aimed at both private homeowners and building and condominium managers. The concierge service is particularly useful for those who are frequently out of the house or for property managers who need support in the daily management of properties. The personnel assigned to the concierge service are highly qualified and perform various activities, including mail retrieval, facilities management, cleaning of common areas, and fuel oil monitoring. The concierge personnel regularly check building systems such as heating and cooling systems, water pumps, and safety equipment to ensure they are functioning properly. In addition, the concierge personnel perform minor maintenance work such as replacing light bulbs and repairing faulty electrical outlets. Cleaning of common areas such as corridors and stairs is another activity of the concierge service, in order to keep the building clean and tidy. Fuel oil monitoring is another important activity of the concierge service, especially during the winter months when the building's heating system is operating at full capacity. The concierge personnel regularly check the oil level and ensure that there is always a sufficient amount to guarantee the heating of the building. In summary, the concierge service offered by Hauswartung Reinigung in Pontresina is a comprehensive and reliable solution for the daily management of properties, ensuring the safety and tranquility of the owners and inhabitants of the properties themselves. RENOVATIONS / REFURBISHMENTS The renovation and refurbishment service offered by Hauswartung Reinigung in Pontresina is comprehensive and reliable, able to meet the needs of private homeowners and building and condominium managers. The service covers all types of construction, plumbing, electrical, and painting work, and includes both small maintenance jobs and large-scale renovations. The highly skilled staff ensures that the work is carried out with the utmost care and attention to detail, guaranteeing maximum customer satisfaction. This includes the complete renovation of bathrooms, with the replacement of sanitary fixtures, faucets, and tiles, and the renovation of kitchens, with the replacement of furniture, sinks, and worktops. Interior renovations can also include the replacement of flooring, the installation of new wall coverings, plastering work, and the replacement of windows. Hauswartung Reinigung is able to manage interior renovations from A to Z, including design, planning, and coordination services, material procurement, and the installation of electrical and plumbing systems. The renovation personnel are highly qualified and able to guarantee the highest quality of work and the utmost attention to detail. The renovation service also includes the renovation of flooring, including the installation of new parquet flooring, the replacement of ceramic flooring, and the installation of linoleum and PVC flooring. In addition, the company also offers internal and external painting services, including wall painting, window painting, and façade painting. GARDENING SERVICE The gardening service offered by Hauswartung Reinigung in Pontresina is comprehensive and covers every aspect of the garden. The gardening staff is highly qualified and takes care of tree pruning, lawn care, terrace and balcony care, flower decorations, and the planting of flowers and herbs. Lawn care is another important activity carried out by the gardening staff. This activity includes lawn seeding, mowing, fertilization, and weed control. The gardening staff is able to identify lawn problems and suggest the most appropriate solutions to keep it healthy. Terrace and balcony care is another activity carried out by the gardening staff. This activity includes cleaning surfaces, removing leaves and waste, and taking care of plants and flowers. The company is able to create customized flower decorations by selecting the most suitable plants and flowers for each season. MOVING SERVICE The moving service offered by Hauswartung Reinigung in Pontresina is reliable, professional, and available at a very competitive price. The service includes the transportation of items, packing and unpacking, disassembling and reassembling of furniture, and cleaning of the departure and arrival property. The highly qualified staff ensures that every move is handled with the utmost care and attention to detail, guaranteeing maximum customer satisfaction.

Imagine a space that tells your story. A space that not only reflects your style but welcomes you with harmony, functionality, and beauty. This is the mission of Idem Bau , a company based in Silvaplana , in the heart of Engadine, which has stood out for years with its unique approach to interior design and the provision of building materials . Combining passion, expertise, and the excellence of the best brands in the industry, Idem Bau is the ideal partner to bring your ideas to life. Our projects are not only aesthetically pleasing; they are designed to be lived, appreciated, and enjoyed. The Magic of Interior Design: A Unique Solution for Every Space Every interior design project starts with a story. Your story. At Idem Bau, our first goal is to listen to you. We understand your desires and transform them into a project that combines aesthetics, functionality, and personality. Why Choose Idem Bau? • A personalized experience : From the first meeting to the final delivery, we accompany you every step of the way, ensuring every detail is perfect. • Exclusive materials : We work with leading brands like Wall&Decò and Valpaint to provide innovative decorative panels and design paints. • Craftsmanship precision : Our team of experts is dedicated to executing every project with care, using high-quality products like decorative plasters from RÖFIX and resins from Elekta . What We Offer: • Custom decorative panels : Creative solutions to add depth and character to any space. • Design wallpapers : Creations from renowned brands like Casadeco , perfect for giving walls an elegant touch. • Tailored solutions : Whether it’s a cozy living room or a commercial space, we create unique projects that reflect your vision. The Quality of Materials: The Difference You Can See and Feel When it comes to building materials, quality makes the difference. Idem Bau selects only the best products, offering innovative and reliable solutions for both private clients and professionals. Our products include: • Ecological paints and coatings : Ideal for those seeking sustainable solutions without compromising on quality. Products from Adler and Mapei guarantee outstanding results. • Plasters and resins : Perfect for seamless and durable surfaces, thanks to brands like RÖFIX and Elekta . • Thermal and acoustic insulation : High-tech solutions from Promat and Actis to enhance living comfort. • Professional tools and accessories : From Tesa adhesive tapes to precision tools by Storch , we provide everything needed for flawless work. Every product we select is designed to deliver top performance and unique design, helping you create spaces that leave a lasting impression. Applications for Every Need Idem Bau passionately works to bring beauty and functionality to every sector: • Residential : We create bespoke, welcoming homes where every element reflects your personal style. • Commercial and retail : Our projects enhance customer experiences, attract attention, and elevate brands. • Hospitality : Hotels, restaurants, and spas find in us a reliable partner to design spaces that inspire relaxation and luxury. Thanks to collaborations with brands like Bertolotto for high-quality doors and Orac Decor for decorative elements, we deliver results that exceed expectations. Our Partners: Excellence That Supports Our Projects We are proud to collaborate with the best brands in the industry. Our partner network allows us to offer cutting-edge products that guarantee extraordinary results. Here is the complete list of our partners with their respective links: • Wall&Decò • Elekta • Tesa • Valpaint • Spit • Vanoncini • Torggler • Storch • Promat • RÖFIX • Progress Profiles • PE • Orac Decor • Nordest • New Lac • Mirka • Mapei • La Calce del Brenta • ITW • Isolcasa • ICR • Giorgio Graesan • Actis • Affreschi • Eclisse • Dike • Dellmor • Danese • Casadeco • Cartotecnica Basic • Bertolotto • Berto • Alpac • 3M • Adler Contact Us Would you like to discover how we can transform your spaces? Contact us today: • Address : Via Maistra 21, 7513 Silvaplana, Switzerland • Phone : (+41) 79 552 99 51 • Email : info@idembau.ch With Idem Bau , your vision becomes reality. Trust us to create spaces that tell a unique story—yours.

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.