The Alvazzi Group , a key player in the Swiss technical services sector, brings together over 300 specialists to provide comprehensive and innovative solutions across multiple fields: • Heating and cooling • Ventilation and air conditioning • Regulation systems • Sanitary installations • Metal roofing and cladding (Valais canton only) • Electrical services • Telematics • Maintenance and repairs • Energy management • Multiservice maintenance A Single Point of Contact for Optimized Management Whether your project is simple or complex, we provide a dedicated point of contact to centralize your requirements and offer efficient and high-performance multi-technical solutions . Thanks to our expertise, we support our clients in a global approach to energy efficiency , ensuring comfort and well-being while reducing environmental impact. Local Presence for a Fast and Reliable Service The Alvazzi Group operates in several regions of Switzerland, with offices in Lausanne, Geneva, Yverdon, Delémont, and Neuchâtel . Our local presence allows us to intervene quickly for installations, maintenance, and repairs. Commitment to Training and Development We invest in the future by training a new generation of professionals each year. We offer apprenticeships in heating, sanitary systems, electricity, building technology, and commerce to ensure continuity and maintain a high level of service excellence. 24/7 Emergency Service Need immediate assistance? Our repair service is available 24/7 at 0800 442 884 . Alvazzi Group – Your trusted partner for sustainable and high-performance technical solutions. Discover our services at www.alvazzigroupe.com

The Riesen Building Technology AG is a company with tradition and experience. We are your specialist for building technology. Here you will find personal and competent advice. The plumbing, heating, and roofing company Arthur Riesen AG was acquired by Daniel von Mühlenen in 2003 and transformed into Riesen Building Technology AG. Riesen Building Technology AG took over all 3 employees. Son Andres successfully completed his first apprenticeship as a roofer at LWB in Bern in 2006. After his apprenticeship in 2007 as a plumbing installer at Chapuis & Zürcher AG in Bern, he deepened his professional knowledge for another year. In 2010, Andres successfully obtained his 3rd Federal professional title as a heating specialist in building technology planning at Haustechnikplanung Abbühl in Spiez. To gain further professional experience, he also worked at Böhlen AG in Bern. In 2010, Andres joined the company at 40%. Since 2012, he has been acting as managing director. He is supported by his dedicated, long-standing plumbing and heating installers as well as a trained roofer. Our Services - Plumbing - Heating - Roofing - Lightning protection - Fireplace construction - Bathtub replacement - Solar - Enamel repairs We are happy to be your contact for work around your home. Customer satisfaction is of great importance to us. We guarantee this through quality, performance, and price. The building envelope has many requirements to fulfill. We are happy to assist you. From planning to complete execution. We are professionals with appropriate training. We don't leave our customers out in the rain.

Gebrüder Rüger AG – Your Partner for Sanitary Installations, Sheet Metal Work, and Heating Systems in Innertkirchen Welcome to Gebrüder Rüger AG , your reliable specialist for sanitary installations , sheet metal work , and heating systems in Innertkirchen . For many years, we have stood for quality, expertise, and sustainability in all areas of building technology. Sanitary Installations & 3D Bathroom Design From modern 3D bathroom design to the installation of high-quality sanitary appliances , we provide everything from a single source. Our experts plan and create customized dream bathrooms – functional, aesthetic, and energy-efficient. Whether supply lines , drainage systems , fittings , pumps , floor lines , or industrial pipelines – we ensure a safe water supply and reliable water treatment . Our services also include hot water systems , compressed air piping , and solutions for washing machines and tumble dryers . Heating Systems & Energy Efficiency Our heating solutions combine comfort with sustainability. From heat pumps and heat pump boilers to hybrid systems and condensing technology , as well as eco-friendly heating with wood energy or pellets – we deliver the ideal solution for your home. With custom storage tanks , combi storage systems , and underfloor heating , we increase your building’s energy efficiency . We also install classic radiators professionally and efficiently. Renewable Energy & Minergie The future belongs to renewable energy – and we are helping to shape it. We rely on modern energy sources that protect both the environment and natural resources. Our systems are Minergie-certified and make an active contribution to sustainable energy use. Sheet Metal Work & Ventilation Our sheet metal workshop handles all work related to roofs – from roof installations and roof structures to modern facade design . Our skilled craftsmen deliver durable, precisely manufactured solutions that combine functionality with design. For a healthy indoor climate, we provide ventilation systems perfectly tailored to your needs. Thermal Solar Systems Harness the power of the sun with our thermal solar systems . Whether flat-plate collectors , tube collectors , or facade collectors – we plan and install solar systems for heating support and domestic hot water production . This allows you to benefit from maximum energy yield and minimal operating costs.

RESEARCH PROJECTORS Project manager in building technology "heating". Our services: Heating systems Fuel oil Gas Wood Pellet CAP Solar Thermal Sanitary facilities Flow lines Sanitary appliances Descaling Water heater Fuel oil and gasoline tanks Installation Revision Sanitation Waterproofing Burner maintenance Help Desk

Optimal Electrical Installations for Your Home and Business In an increasingly digitalized world, electrical installations are of utmost importance. Whether in residential buildings or commercial properties, the proper planning and implementation of electrical systems are crucial for safety, efficiency, and comfort. Electrical Installations: Precision and Reliability Our experienced electricians ensure that your electrical installations always meet the latest standards. We design and install electrical systems tailored precisely to your needs. Whether it’s new construction or renovations, we guarantee professional and safe execution of all work. Electrical Inspections: Safety First Regular electrical inspections are essential to ensure the safety and functionality of your electrical systems. Our experts conduct comprehensive checks to identify and rectify potential hazards early on. Trust us to keep your electrical installations safe and reliable. Lighting Design: Atmospheric Illumination for Every Room Thoughtful lighting design can significantly enhance the atmosphere and functionality of a room. Our lighting designers develop individual concepts that meet both aesthetic and practical requirements. From selecting the right light sources to the optimal placement of fixtures, we ensure perfectly illuminated spaces. Building Technology: Intelligent Solutions for Modern Buildings Modern building technology encompasses much more than just electrical wiring. We offer integrated solutions that include heating, ventilation, air conditioning, and security systems. Our experts ensure that all systems work seamlessly together, keeping your building efficient and comfortable. Photovoltaics: Sustainable Energy for the Future With photovoltaics , you can harness the power of the sun to generate your own electricity. Our customized photovoltaic solutions help you save energy and protect the environment. We assist you from planning and installation to the maintenance of your solar system. E-Mobility: Cutting-Edge Charging Technology E-mobility is a crucial step towards sustainable transportation. We offer comprehensive solutions for installing charging stations for electric vehicles. Whether at your home or for your company fleet, we ensure that you are always well-charged and mobile. Conclusion Our services in the areas of electrical installations, electrical inspections, lighting design, building technology, photovoltaics, and e-mobility offer you innovative and sustainable solutions. Rely on our expertise to make your projects safe, efficient, and future-proof. Contact us today for personalized consultation!

INNOVATION & SUSTAINABILITY MEETS ELEGANCE Experience plumbing and roofing of the new era. Experience now OUR SERVICE Repair Service Remodeling & Planning Bathroom Remodeling Drain Cleaning Boiler Descaling Roofing Flat Roof Roof Service Customer Service Maintenance & Inspection Energy Consulting Rainwater harvesting Solar Technology Green Roofing Thermal Insulation Façade Renovation Chimney Repair Burglar protection Turnkey Construction Consulting & Planning.

Virtech Energie Sàrl specialises in general electrical installations, including technical advice and studies in this field. General electrical installation High current electrical installations • Repairs • ITTO inspections • Electric vehicle terminal installations with cantonal subsidy • Lightning conductors • Solar installations • Maintenance and servicing of installations • Emergency lighting • Special installations (clean rooms, explosive rooms, etc.) Low current electrical installations • Home automation installations • Computer networks • Alarm systems • Video surveillance systems Consulting • Defining the client's present and future needs • Preparation of quotations • Creation of specifications for project managers • Follow-up of the construction site • Preparation of (electrical) bills of quantities • Optimisation of installations • Calculation of depreciation according to current consumption • Extension of your electrical network Building technology • Building automation • Building security • Replacement of a traditional water heater with a heat pump water heater • Replacement of your old radiators or electric storage tanks • Heat pumps • Solar installation • Thermal installation • Danfoss system for controlling your heating Translated with www.DeepL.com/Translator (free version)

Max Ackermann Bedachungen Balsthal – Your Specialist for Roofing, Facades & Metalwork A roof is much more than protection against wind and weather – it is a central element that ensures safety, comfort, and significantly increases the value of a property. With this conviction, Max Ackermann Bedachungen in Balsthal has been working alongside private clients, companies, and public institutions for many years. Our family business combines traditional craftsmanship with modern technologies and offers a comprehensive range of services in roofing, sheet metal work, scaffolding, flat roof and facade construction. Our Core Services Roofing – Pitched & Flat Roofs Whether new construction, renovation, or repair: we plan and build roofs that are both functional and aesthetically appealing. Pitched roofs: traditional tiles, fiber cement, slate, or modern metal roofing – perfectly installed, durable, and weather-resistant. Flat roofs: professionally sealed, energy-efficiently insulated, and if desired, equipped with green roofs or solar systems. Metalwork – Precision in Detail Our metalworkers provide custom solutions for roof connections, cladding, and coverings. Gutters and downpipes Metal cladding and connections Roof window flashings Metal roofs and facade elements Scaffolding – Safe & Efficient No roofing or facade project is possible without safe scaffolding. That is why we also provide scaffolding solutions from one source. Flexible scaffolding systems for single- and multi-family houses Safe working platforms for roofing and facade projects Fast assembly and dismantling by experienced specialists Facades – Beauty & Protection A modern facade is more than just the shell of a building – it shapes the appearance, improves energy efficiency, and protects against the elements. Ventilated facades Thermal insulation systems Facade cladding in metal, fiber cement, or wood Innovative and stylish design solutions Maintenance & Service – Lasting Value Roofs and facades are exposed to daily stress. To ensure long-lasting protection, we offer: Roof inspections and maintenance Repairs after storm, hail, or wear Cleaning and servicing of roofs and gutters Professional renovations Why Choose Max Ackermann Bedachungen? Family business with tradition and future – led by Max Ackermann, supported by Remo and Marina Ackermann, together with a strong team of specialists and apprentices. Complete solutions from one source – roofing, sheet metal work, facade construction, scaffolding, and maintenance. Regional presence – firmly rooted in Balsthal and the Solothurn region, always close to our customers. Training company – we actively train apprentices in roofing and sheet metal work, passing on knowledge to future generations. Personal consultation – every project is individually tailored to your needs, budget, and building requirements. Quality and safety – we work with certified materials, modern technology, and according to the highest safety standards. Our Team – Skilled and Dedicated Behind every successful project stands a strong team. Max Ackermann – Management, decades of experience Remo Ackermann – Project management Marina Ackermann – Administration Robert Brunner (Project Manager), Peter Millonig (Site Manager), as well as many other experienced professionals ensure reliability and precision. Motivated apprentices such as Maxim Ackermann, Ruben Walser, and Cyrill Buoite are trained directly in our company. Your Project in the Best Hands Whether it’s a new roof, facade renovation, solar installation, precise metalwork, or secure scaffolding – with us you have a partner who listens, plans, executes, and remains at your side even after the project is completed. We guide you from the first idea to professional realization and ensure your property is both protected and visually enhanced for the long term. Contact Max Ackermann Bedachungen Holderweg 2 4710 Balsthal Phone: +41 (0)62 391 16 07 Email: info@ackermann-bedachungen.ch Web: www.ackermann-bedachungen.ch

Von der Planung bis zur Ausführung alles top! Wir sind sehr zufrieden und glücklich mit unserer neuen Wohnung. Hat alles super geklappt, von A-Z. Ein super Team!

Electrical planning with passion. Our company accompanies you from the planning of complex technical systems and installations to commissioning. We are happy to pass on our expertise to you. In an all-round carefree package that guarantees quality. Our services related to building electrical engineering Are you looking for a competent partner in building electrical engineering? Whether new construction, conversion or renovation - we advise you individually and purposefully. We accompany you and your project from A to B and beyond. From the preliminary project to the tender to operation. Together with you we plan your project, monitor deadlines and budget. On request, we will be happy to take over the coordination of the specialist construction or the management of the building owner. We live electrical engineering - and understand planning, building and management as a holistic process. As an independent engineering office, we offer individual consulting and planning services for electrotechnical building equipment. Our offer is particularly suitable for builders, investors, general planners and architects in the following sectors: Chemistry, pharmaceuticals, biotechnology Banks, Insurance, Telecom, Services Private and public administrations industrial and commercial buildings data center What we do: high-voltage systems Medium voltage systems, transformer stations low-voltage distribution systems Emergency power supply systems, backup power systems and UPS systems substation control systems busbar and cable systems Power installations, installation systems Lighting installations, lighting controls low-voltage installations Audio and visual systems Room controls and bus systems Communication systems (image, data, voice) IT, WAN- LAN systems Security systems (fire, value protection and intrusion) Lightning protection and EMC Specialist site management for technical building equipment The TGA specialist construction management ensures that the process and building technology systems are implemented according to the specifications of the planner by the executing contractors and installers. To ensure the overall function, we carry out an integrated test. This enables us to show the interactions between the various trades, systems and system parts and to rectify any defects immediately. I