OSAK

Unfortunately, I had a very negative experience with Osak. In December 2023, I agreed with Osak by phone for the delivery and installation of solar panels and air conditioning. The fact that everything was done by phone should have been a warning sign. The installation on December 29, 2023, was chaotic: technicians arrived late, the work wasn't completed on time, and the air conditioning wasn't even installed. During the work, the roof duct for the bathroom ventilation system was damaged, and the fan malfunctioned. I reported this immediately. Because the work wasn't completed and the damage wasn't repaired, I rightly withheld part of the payment. After insisting, I paid almost the entire amount. The air conditioning was installed later, partly by an external contractor, who were visibly surprised by Osak's handling of the matter. The damaged roof duct was never repaired. I ultimately had to have the fan repaired myself with the withheld amount, despite Osak's written promise that they would take care of it. Furthermore, I was treated very unfairly after the installation. The owner/manager threatened to remove the solar panels from my roof if I didn't pay in full, saying I would be responsible for any damage. I found this intimidating and unacceptable. As if that weren't enough, one or more solar panels/inverters stopped working at the end of 2025. Attempts to contact them were unsuccessful. Ultimately, they even stated that I "don't appear in their customer database." In summary: - poor workmanship - damage to the property - broken agreements - intimidating communication - no service or warranty claims. I absolutely don't trust Osak. I therefore strongly advise against using them.

AGGRESSIVE SALES!!!! DON'T FALL FOR IT, YOU'LL NEVER GET YOUR DEPOSIT BACK! We had an inspector at home, but we didn't mention the 14-day cooling-off period, and the heating fund still had to make a decision. We received a rejection, and now Osak is saying we canceled it, even though we received the rejection letter from the heating fund. The 14-day cooling-off period was, of course, over, and we didn't sign a contract. They did require a €750 deposit at the time of the inspection; otherwise, you wouldn't be scheduled to install a battery. Unfortunately, we paid!!! What aggressive, misleading sales, and I'll share this on other pages.

Prima, met name de samenwerking met Aydin,

Prima zonnepanelen voor de scherpste prijs. Ze waren binnen enkele dagen geplaatst. In begin storing, maar met top service binnen 4 werkdagen verholpen. Erg vriendelijk ook, aanrader.

Snelle levering en enorm goede service

Duidelijke communicatie. Goede service en snelle installatie.

Het eerste contact met Osak was direct heel prettig en ook de reden dat we een offerte hebben aangevraagd. Na snelle offerte waren wij direct akkoord en daarna is vrij snel de installatie gedaan. De monteurs waren netjes in hun werk en vriendelijk. Een heel goed bedrijf, die wij kunnen aanbevelen.

Werken netjes en secuur en hebben hele goede service.

Na akkoord op de offerte volgt een snelle planning van het leggen van de zonnepanelen. In overleg is alles mogelijk. Het bedrijf probeert mee te denken in oplossingen en komen de gemaakte afspraken na.