Excellent travail, service très professionnel en temps voulu.

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.

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!

Il y a vingt-cinq ans, la planification et l'installation du chauffage central de ma villa ont été exécutées à ma grande satisfaction, par M. Jimmy Devinaz. En 2020, le matos ayant fait son temps, Chloé Devinaz nous a conseillés et installé un système tout neuf et performant avec le soin et la rigueur de cette entreprise familiale. Simplement du Pro ! What else

Independent engineering consultancy specialized in HVAC and energy systems, with nearly 20 years of experience in the design, optimization and implementation of technical installations. The company provides the full range of services typically offered by an HVAC and energy engineering consultancy. Services include feasibility studies, technical design of heating, ventilation and air conditioning (HVAC) systems, energy audits, optimization of existing installations, technical project management and construction supervision. Particular expertise has been developed in complex energy systems and collective infrastructures such as centralized boiler plants, thermal networks, industrial energy systems and large-scale technical installations. The objective is to design robust and efficient solutions adapted to the technical and economic constraints of each project. A strong focus is placed on energy performance and sustainability. Each project is approached with particular attention to reducing energy consumption, integrating low-carbon solutions and improving the overall energy efficiency of buildings and infrastructures. The company also provides strategic advisory services including energy audits, energy transition strategies, optimization of technical assets and support for energy renovation projects. In a context of rapidly evolving energy systems and increasing climate constraints, the activity is also expanding towards consulting in energy resilience and climate adaptation for buildings and infrastructures. The objective is to support clients, public authorities and companies in developing energy systems that are more efficient, resilient and sustainable. As an independent and agile structure, every project benefits from direct involvement, strong responsiveness and in-depth technical expertise.