Koncz Nyílászáró Kft.

Very reliable accurate and clean work. Professional and fast installation. Thank you very much, I can recommend their work.

In May 2018, the window was replaced. Fast, accurate precision work. There was almost no repair work. With the onset of cold weather, it confirms that the windows are working well. Thank you very much.

Very reliable, accurate, clean work. Professional and quick installation. I can only recommend it to everyone. Thank you for your work :)

Very reliable, accurate, clean work. Professional and quick installation. I can only recommend it to everyone. Correct prices, which have not changed during the works. Thank you for your work !! I'll make the next window change with them ...

The windows were installed two and a half months after the order (originally 30 days was described in the offer). The installation was poor work, one of the windows was damaged, and even a horror dirt was left as a bonus. You will only respond to the email until you place your order.

The complete window replacement of the family house was undertaken in Budapest, after an accurate and precise survey, professional and fast installation. We didn’t have exactly ideal conditions with us, but that didn’t bother them at all. I just wish every craftsman (be it a tiler, a painter, etc.) or a company of a similar size would follow their example in terms of survey, pricing, professionalism, fairness. I wholeheartedly recommend them!

We ordered all the windows and doors for our family house from them. A complete survey and a fair offer, not to mention that the energy expert admired that he had never encountered such super doors and windows. We only have good experiences. I strongly recommend it to everyone.

They work in awful crap quality, don't have anyone with them! I installed a double window and balcony door with them. From the outset, the part next to the window is not plastered, but the coffee behind the opened window is covered with plasterboard. This was only communicated to me after the advance was paid. The outside size of the window was scaled to the outside opening when I revealed it so they know what’s in the coffee so it’s easier to install. Anyway, it can be seen on the photos on their website that the frames in the outer opening are very thick. Well, the previous two together result in the cold leaning against the built-in window, and I think the plasterboard is mushrooming towards the wall as well. Who knows if it was blown out with mousse? It’s like I didn’t install a plastic window, I really regret doing it with them! But this is not the end, there is more! The self-tapping screws that go through the window were not tightened well (I attach a photo) when I asked for this during installation, they said they would not be tightened because they did not want to force the drill. So on the other hand, when the wind blows in front of the window, the window shakes, crackles, I wake up in the room at night! This is all because of the unusual screwing. Unfortunately, one of the bottles is fixed, I can't even replace it! According to our agreement, the location of the shutter case above the window should have been filled with rock wool, Hungarócell was brought for this installation. When I asked him about this, they said it was because the rock wool stabbed their hands while cutting. Gloves must be worn for cutting! They worked cheaply, but I was very sorry that I worked with them because they are contars!