Peak-Photovoltaik
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Worth noting
No recurring concerns found across reviews.
Best for
Standard residential work with prior reference checks.
Attribute scores
Recent reviews
We ordered a photovoltaic system and battery from Christian Graf. He provided us with comprehensive and excellent advice. We are very satisfied because he took the local and other conditions into account perfectly. We can cover almost all of our own energy needs, including those of our heat pump, for the entire year, and we have now also ordered an electric car so that we can use the remaining surplus electricity as fuel.
Excellent work! Fast delivery, installation, and billing as agreed. We can highly recommend them to anyone considering a PV system. THANK YOU!
In February 2024, we purchased two systems—inverters with battery storage, including installation—and were extremely satisfied. Furthermore, this year (March 2026), we expanded the storage capacity for both systems. We can wholeheartedly recommend this company; everything went perfectly from the initial quote to completion. Mr. Graf is always readily available should we have any questions.
From start to finish, an absolutely outstanding experience! The consultation was simply perfect, both before and after the installation – competent, transparent, and always responsive to my questions. The seamless collaboration with the electrical partner was particularly impressive. This demonstrates what true teamwork means: 1 + 1 equals 3! The coordination was top-notch and significantly contributed to the overall quality of the project. Especially in times when renewable and sustainable energy solutions are becoming increasingly complex, the focus shouldn't be solely on the lowest price. A professional and long-term partnership that guarantees reliable service even after installation is far more important – and that's exactly what they deliver here. Partners like Peak-Photovoltak are rare – and for good reason: the high demand speaks for itself. Even if there are waiting times, the patience is worthwhile in every respect. A perfectly executed installation saves time and hassle in the long run and provides the peace of mind of being independent of fossil fuels and their price fluctuations every single day. Conclusion: Unfortunately, I can only give 5 stars – it deserves at least 6! 🌟
Commissioning in April 2025 of a 26 kW east/west facing PV system with storage. From initial contact to completion, we were always on the same page. Everything was superbly organized, and all the official paperwork was handled flawlessly. Three weeks from installation start to completion notification. Absolutely top-notch. I highly recommend them. Thank you, Florian Kreuzer