Friondo GmbH

Clean and careful work, good support from the project management. The schedule was met. The tradespeople were always punctual and well-prepared on site.

Five stars for Friondo. Just like two years ago with our son in Duisburg (a trouble-free conversion in an old building, over two years of trouble-free operation), we now also had a smooth installation and operation of a Bosch heat pump. In every aspect, from explanation and advice to support with the KfW application and the execution of the various trades, everything went perfectly to our satisfaction. The different tradespeople worked cleanly and precisely and always had an answer to our questions. The heat pump has now been running for two months and has easily handled the first few days wi

We had the pleasure of working with the Friondo team and have nothing but positive things to say. The speed and efficiency of their work exceeded our expectations. Communication was clear and transparent from the very beginning. All deadlines were met punctually, which is of great importance to us as a client. The team's flexibility when it came to change requests was particularly noteworthy. Even after the work was completed, the team was always available to answer any questions. We wholeheartedly recommend Friondo and would use their services again without hesitation!

First and foremost, I'd like to thank the entire team for their fantastic support and excellent execution. I was looking for a local provider to convert my functioning 22-year-old gas heating system into a heat pump. So I searched on Google and found Friondo. They had very good reviews and an interesting presence on social media. One phone call and I already had a sales representative at my home who had technical expertise, so I was able to ask them some questions. That impressed me. The quote arrived at the end of November and looked good to me. What I really appreciated was that I had time

The heat pump system was installed and commissioned between November 10th and 14th, 2025. I deliberately waited until now (January 1st, 2026) to write this review in order to consider a longer operating period. I first became aware of Friondo through a heat pump installation in our neighborhood in 2024. The response time to my inquiry in mid-July 2025 was exceptionally fast. An automated quote arrived the very next day, and an on-site appointment took place just one week later. Friondo's comprehensive, hassle-free package convinced me; I only had to handle the KfW funding application myse