Aetherys is an engineering and consulting firm specializing in heating, ventilation, air conditioning, and plumbing (HVAC&P) based in Martigny, Valais. The company assists homeowners, architects, developers, and contractors in the design and optimization of their technical systems throughout French-speaking Switzerland. Aetherys offers customized solutions for single-family homes, residential buildings, and administrative and industrial structures, integrating energy efficiency, sustainability, and user comfort. Each project is carefully analyzed to ensure reliable, cost-effective systems that comply with current standards. The firm is involved in all phases of the project, from feasibility studies and design to sizing, planning, and construction supervision. Aetherys places particular emphasis on the energy optimization of buildings through modern solutions such as heat pumps, solar energy, heat recovery, and high-performance ventilation systems. With over 15 years of experience in building technology, Aetherys possesses solid expertise in a wide range of projects, from single-family homes to luxury chalets in resort areas, as well as commercial buildings and public infrastructure. Based in Martigny, the company operates throughout the Valais region as well as in the Chablais and the Vaud Riviera, offering a responsive, results-oriented local approach. Aetherys positions itself as a trusted partner for all HVAC projects in French-speaking Switzerland, providing high-performance, sustainable solutions tailored to today’s building industry challenges.

At Mineal Real Estate , we specialize in property purchase, sale, investment, and project management. Whether you are an investor, buyer, or developer, we provide comprehensive advice and personalized support throughout every stage of your real estate project. Our expertise covers all types of real estate projects : purchase, sale, renovation , and custom construction . A single point of contact for all your projects, regardless of their size. Our Services : • Property Purchase, Sale, and Investment : We offer advice on selecting and optimizing your properties for secure and profitable investments. • Property Valuation : We assist with property sales and brokerage processes. • Renovation and Transformation : From partial renovations to complete transformations, we create tailored solutions to meet your needs. • Construction : We manage your construction projects from design to completion, with an experienced and dedicated team. • Rigorous Oversight and Personalized Support : Each project is carefully monitored to ensure timely and budget-friendly success. Professionalism, expertise, and listening are at the heart of our approach to make your real estate project a lasting success. 📞 Contact us today to discuss your project and receive a no-obligation offer.