Hélios Énergies SA

Everything went perfectly and as planned. I appreciated their punctuality, professionalism, and availability to answer my questions. They truly know their subject matter, from providing advice and site supervision to project execution, grant application support, and responsiveness to any questions or issues... I even went so far as to call them the Rolls Royce of photovoltaic, heat pump, and radiator companies. I highly recommend them.

We wish to express our enthusiasm and profound gratitude for the exceptional support provided by your company, Helios. Your company is remarkable and reflects exemplary expertise. From our very first contact, you welcomed us with professionalism and kindness, and your wise advice made the realization of our project both simple and enjoyable. Your support, including financial assistance, was invaluable and greatly contributed to the success of our endeavor. From the outset, everything was orchestrated with rigor and mastery: deadlines were met, communication was clear, and advice was judicious. Your efficient and caring team exceeded our expectations, and we would have gladly extended the experience for another week! The icing on the cake was the quality of the cleaning service, which was simply outstanding. We also thank the administrative departments for their availability and support throughout. Thanks to you, our comfort and well-being have been greatly enhanced, to our immense delight. We will certainly recommend your company and send you our best wishes for the holiday season, thanking you again for your work. With our sincere gratitude Done in Plan-les-Ouates - December 2025.

An excellent, reliable company comprised of highly skilled professionals at every level. Their advice is top-notch, with no pressure whatsoever. The team is always available and attentive, without ever being pushy. The technicians are distinguished by their professionalism: punctual, clean, and meticulous. The administrative department is also very efficient and responsive. The products offered are high-end, and the finishes are impeccable. A reliable and extremely professional choice.

I was hesitant to have a heat pump and solar panels installed. Helios was recommended to me. The installation went smoothly, and I also had the pleasure of seeing friendly professionals working as a team. The financing process was impeccable. The remote maintenance was flawless.

Helios Energies SA installed PV solar panels on my roof and replaced my old heating/hot water system (using heating oil as fuel) with a modern heat pump. It was clear from the beginning that this company has very high levels of experience and competence in this field, and has been highly responsive throughout the planning and delivery stages. The project was delivered on time and with no hidden costs despite Covid restrictions in November/December 2020. Their seamless administrative support handles all necessary paperwork to ensure swift processing of relevant federal, cantonal and municipal subsidy claims. I would not hesitate to use this company again and I highly recommend their services.