We wish to actively participate in the energy transition by building "carbon neutral" public technical infrastructures for small and medium-sized municipalities financed by "operational leasing PPP" without impacting the balance of municipal accounts. Innergia has developed an innovative economic mechanism enabling it to offer local public authorities their energy transition through the realisation of their sustainable technical infrastructure as a total enterprise, i.e. turnkey construction as a general contractor, as well as full financing through "PPP operational leasing" without impacting on municipal finances and using institutional investors as a source of financing. Translated with www.DeepL.com/Translator (free version)

A l écoute du client avant tout

Our practical experience and the quality of our team enable us to meet all your requirements in terms of : • Construction • Masonry • Villa • House • Building, farm • Renovation, conversion • Fitting out We also carry out the following works • Reinforced concrete • Public works • Special works • Civil engineering • Construction • Digging and finishing of swimming pools Contact us for more information!

Joseph Diémand SA , a company of the Holdigaz Group , is a leading expert in sanitary installations , recognized as one of the most reputable in this field in French-speaking Switzerland . The company operates in renovations, transformations, new constructions, and large-scale complex projects . With over 100 years of experience and expertise , the company has expanded its fields of competence over the years, delivering innovative installations involving water, specific gases, and special fluids . In every solution it provides, the company ensures the use of environmentally friendly processes and materials . J. Diémand SA works on major projects , often in synergy with Brauchli SA and Roos Ventilation SA . A GLOBAL AND RELIABLE SUPPORT FOR YOUR SANITARY INSTALLATIONS As a specialist in sanitary installations , Joseph Diémand brings its recognized expertise and know-how in water networks and various fluids to assist you with all your projects, whether for new constructions, renovations, transformations, or large-scale complex projects . We provide comprehensive support , from study and design to implementation and maintenance of your installations. Thanks to our customized and professional approach , we guarantee optimized solutions for your comfort, safety, and energy efficiency . TECHNICAL EXPERTISE FOR OPTIMIZED INSTALLATIONS Our experienced teams intervene in all types of projects, integrating modern and high-performance solutions in water distribution, wastewater drainage, water treatment, sanitary fittings, sanitary installations, and maintenance . We work with individuals, businesses, real estate agencies, and public authorities , ensuring a flexible approach tailored to each client’s specific needs. 24/7 AFTER-SALES SERVICE FOR MAXIMUM RELIABILITY Because well-maintained equipment is essential to prevent breakdowns and ensure longevity, we offer a 24/7 after-sales service , along with a customized maintenance contract . We respond quickly to any emergency , ensuring the optimal operation of your installations . SYNERGY OF EXPERTISE WITH THE HOLDIGAZ GROUP As a member of the building technology companies’ group , Joseph Diémand benefits from the expertise of Holdibat SA and its partners specializing in heating, ventilation, air conditioning, solar energy, and energy renovation . This collaboration enables us to provide global and innovative solutions , perfectly aligned with today’s demands for energy performance and sustainable development . WHY CHOOSE JOSEPH DIÉMAND? Experience and expertise in sanitary installations and water networks Tailored solutions for individuals, businesses, and professionals Global and reliable support from design to installation 24/7 responsive after-sales service A partner of the Holdigaz Group , ensuring a synergy of expertise Commitment to energy performance and sustainable development Trust Joseph Diémand for high-quality, durable sanitary installations adapted to your needs! Contact us today for a personalized study of your project.

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Nous avons entrepris différents travaux avec la société Ozeni en 2023. Tout d-abord pour la creation d'une salle de bain et, suite au fait que cette premiere experience c'est tres bien passée, une grosse de renovation du jardin et du garage, et d'autre interventions minores. Nous avons trouve en M Marra une personne sérieuse, transparente, a l'écoute mais toujours tres claire sur ce qui était possible et avec quel budget. Ces sont des qualités qu'on trouve pas souvent dans le domain. Nous recommandons fortement cette société et ses collaborateurs et nous ne manquerons pas de faire leur confiance a nouveau pour des prochaines travaux.

A family-owned business from Vaud, serving its clients for three generations! Founded in 1950 in Rougemont in the canton of Vaud, Thierry Schopfer Sàrl has been providing its services for three generations: Sanitary installation Sheet metalwork - Roofing Heating 24/7 emergency services Thierry Schopfer Sàrl in Rougemont has nearly 75 years of experience in sanitary installations, heating, sheet metalwork, roofing, waterproofing, and chimney lining. A member of the Master Tinsmiths and Installers Association of Lausanne and Surroundings, we support you throughout your project, offering professional advice and high-quality service. On our website, you will find all our services as well as our completed projects. We are also readily available by phone or email if you would like a free quote.

Schaller - Opusbois is a company specializing in the construction and design of wooden buildings. They offer a wide range of services related to ecological construction, focusing primarily on timber-frame homes. Below is an overview of the company's main activities: 1. Timber-Frame House Construction • Custom Design : Schaller - Opusbois provides custom-designed houses tailored to the specific tastes and needs of their clients. The plans can be developed according to individual requests or based on predefined models. • Eco-Friendly Construction : The company emphasizes the use of sustainable and eco-friendly materials, helping to reduce the carbon footprint of their buildings. • Energy Efficiency : Timber-frame constructions offer excellent thermal insulation, and Schaller - Opusbois works to optimize the energy consumption of the houses they build. 2. Traditional and Contemporary Timber Framing • The company manufactures and installs wooden frameworks for various types of projects, whether they are classic or more modern structures. This includes timber frames for individual homes, extensions, or larger buildings. 3. Exterior Wooden Structures • Schaller - Opusbois offers solutions for outdoor spaces, such as building decks, pergolas, garden sheds, or carports. These structures are made of wood to blend harmoniously with the natural environment. 4. Renovation and Extension of Wooden Buildings • The company also handles the renovation and transformation of wooden houses or buildings, whether it’s extending, refurbishing, or modernizing existing structures. 5. Consulting and Project Management • Project Planning : Schaller - Opusbois assists clients from the initial design phase, taking into account technical, financial, and environmental aspects. • Site Supervision : They offer full construction site supervision, ensuring the work is carried out properly and within the agreed timeframe. 6. Custom Woodwork and Carpentry • The company also provides carpentry services, creating custom furniture, doors, windows, and other wooden elements. In summary, Schaller - Opusbois is a key player in the timber construction sector, offering services that combine innovation, sustainability, and artisanal craftsmanship.