Sonnwende GmbH
Basel-based solar installer covering PV planning, permits, battery storage and grid connection as one package.
What customers love
- Single-provider handling of modules, electrical, permits and plumbing
- Clean and orderly installation with minimal disruption on-site
- Project manager Patrick Berzi praised for control and communication
Best for
Homeowners wanting a single provider managing the full PV installation end-to-end.
Attribute scores
Recent reviews
Sonnwende GmbH impresses with professional advice and first-class installation of solar systems. The team is competent, reliable, and caters to individual needs. The installation went smoothly, and the system works perfectly. Highly recommended for anyone who values sustainable energy!
When searching for a suitable company for my photovoltaic (PV) project, the overall package was just as important to me as the price. It was crucial that all installations (modules, electrical, plumbing, permits, etc.) were handled by a single provider, ensuring seamless coordination and smooth interfaces. I found all of this at Sonnwende GmbH. From the initial site visit and quote preparation to the final completion, the work was carried out professionally. They also placed great emphasis on order and cleanliness. I am also very satisfied with the Fronius products used (inverter, battery storage, and Ohmpilot). They deliver the same high quality as the entire Sonnwende team. While achieving a goal always requires the entire team, I would like to give special mention to the project manager, Patrick Berzi. He always had the project under control, and all questions were addressed professionally, competently, and with a customer-focused approach. Any problems that arose were identified and resolved to my complete satisfaction. The client was informed and involved in finding a solution. Every project should have a project manager like this. I would like to thank Mr. Berzi and the entire Sonnwende team for their outstanding work and meticulous execution. I wholeheartedly recommend this company and am confident that others will be equally impressed.
Excellent, professional work by the entire Sonnwende team. I was completely satisfied from planning to execution. Highly recommended. Keep up the good work! Thank you very much.
Happy to have chosen Sonnwende GmbH for my solar installation. They work they delivered was good and clean. All my questions they could answer very well and gave me good and honest advice. They installation team was very friendly, and we almost did not notest that they were working on our roof. Thanks, and hopefully we have a lot of sun coming months.
Very professional and efficient!Well done!