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.

AvantGarde Investment Solutions & Consulting is a Swiss company specializing in tailored financial support. Led by Steve Léchaire, a financial expert with over 20 years of experience in prestigious institutions such as UBS, the firm delivers an innovative approach to wealth management, financing, and investment strategy. Customized Financial Services Investment Advisory AvantGarde offers diversified investment strategies, including both traditional and alternative assets such as rum, whisky, balsamic vinegar, green investments, and maritime transport. The goal: high returns through innovative asset classes. Mortgage Financing Comprehensive support to secure the best mortgage conditions, adapted to your financial profile and long-term property goals. Pension and Retirement Planning A complete analysis of your current financial situation with personalized solutions to secure your future income and protect your wealth. Financial Coaching One-on-one coaching to help you regain control of your finances, improve your budgeting, and achieve your financial goals step by step. Our Core Values • Innovation – Cutting-edge and alternative investment opportunities. • Expertise – Over two decades of proven experience in financial consulting. • Transparency – Clear and honest communication every step of the way. • Personalization – Tailored services to meet each client’s unique needs. • Reliability – A professional structure you can fully trust. Why Choose AvantGarde? Choosing AvantGarde means partnering with a team dedicated to smart financial management, high performance, and long-term results. Whether you're building, protecting, or growing your wealth, AvantGarde offers personalized guidance every step of the way. Contact Get in touch today for a tailored consultation and discover how AvantGarde Investment can redefine your financial journey with confidence and clarity. Our activities concern, among others, the residents of French-speaking Switzerland, and we are happy to travel to the following municipalities, for example: Vaud: Lausanne, Morges, Nyon, Yverdon-les-Bains, Renens, Pully, Prilly, Ecublens, Crissier, Bussigny, Lutry, Vevey, Montreux, Aigle, Rolle, Orbe, Cossonay, Le Mont-sur-Lausanne, Saint-Prex, Chavannes-près-Renens Geneva: Geneva, Carouge, Lancy, Meyrin, Vernier, Onex, Thônex, Versoix, Plan-les-Ouates, Chêne-Bougeries Fribourg: Fribourg, Bulle, Marly, Villars-sur-Glâne, Givisiez, Romont, Estavayer, Düdingen (Guin), Morat (Murten) Neuchâtel: Neuchâtel, La Chaux-de-Fonds, Le Locle, Val-de-Ruz, Val-de-Travers, Colombier Jura: Delémont, Porrentruy, Saignelégier, Bassecourt, Courroux Valais: Sion, Sierre, Monthey, Martigny, Fully, Saxon, Conthey, Nendaz, Vétroz, St-Maurice

To discover my projects, click here Architecture is the learned music of spaces, volumes and light in an environment. Nowadays, lifestyles are changing. Between the imperatives of modernity and environmental balance, architecture reinvents itself. The current challenges of construction require an opening to ecology and greater collaboration with the actors of well-being and health. Between home, work and other indoor activities, we spend about 85% of our time in buildings! But if the air outside is polluted, the air inside is often of poorer quality. Numerous studies and analyses have shown that prolonged exposure to chemicals, but also to electrical waves and geobiological disturbances, can cause significant health problems. For these reasons, as soon as I graduated from the University of Applied Sciences in Fribourg, I enthusiastically followed several approaches and trainings in feng shui, geobiology, and on the electrical pollution of our homes. I also became interested in the different possibilities of integrating alternative finishing materials. I propose to my clients the possibility of going further in a global and healthy vision of the habitat, while keeping a reasonable budget and adapted to their situation. Architecture is a passion!