I used AFM twice : once to run a diagnostic on my underfloor heating, and within one appointment they had already improved the heat yield. The second was an emergency call out which they attended promptly and found/fixed the issue professionally. thank you!

Nous avons installés une pompe à chaleur et 33 panneaux photovoltaïques. Nous avons apprécié les services d’Helios à tous les niveaux: proposition initiale claire et complète; travaux exécutés dans les temps; rendements tout à fait satisfaisants (indépendance énergétique); excellent suivi avec actions immédiates en cas de besoin; explications claires concernant les ajustements à effectuer pour obtenir des températures optimales pour le chauffage et le rafraîchissement de notre domicile et pour celle de l’eau sanitaire; et excellent suivi administratif concernant les demandes de subvention. À ce stade, nous n’avons aucune critique à faire au sujet des services d’Helios. Nous recommandons sans hésitation cette entreprise que nous avons choisie après étude approfondie des offres de trois autres entreprises de Genève. Trois autres voisins, qui ont aussi utilisé les services d’Helios, ont exprimé la même opinion concernant la qualité de ces services.

Excellent travail, service très professionnel en temps voulu.

GTS SA is a Swiss photovoltaic company operating throughout Switzerland , including Vaud , Geneva , Valais , Fribourg , Neuchâtel , Jura , Bern , Zurich and Central Switzerland . With more than 20 years of experience in solar technology , GTS SA supports businesses , public authorities and private clients in the design , installation and optimization of turnkey photovoltaic systems . As a leading solar energy expert in Switzerland , GTS SA has in-depth knowledge of Swiss energy regulations , cantonal requirements , solar subsidies and self-consumption models . Every solar installation in Switzerland is carefully engineered to ensure maximum solar power generation , long-term profitability and high-performance photovoltaic components . GTS SA develops turnkey photovoltaic power plants for industrial rooftops , commercial buildings , residential properties , private houses and agricultural facilities . Advanced solar engineering allows efficient energy self-consumption , grid feed-in and reduced electricity costs . The company also provides complete solar energy solutions , including solar battery storage , heat pumps combined with photovoltaics , solar carports , solar lighting systems , EV charging stations , solar water heaters and energy monitoring systems . GTS SA stands for quality , performance and sustainable renewable energy across Switzerland.

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