B.O.S Kozijnen B.V.
Rotterdam-based window and frame specialist handling full residential façade replacements with consistent results.
What customers love
- Installations completed on time without delays
- Noticeable improvement in insulation and soundproofing
- Skilled at diagnosing complex water leakage problems
Best for
Homeowners seeking full façade or whole-apartment window replacement in Rotterdam.
Attribute scores
Recent reviews
We contacted Bos Kozijnen for the complete replacement of the front and rear façades of our terraced house. From the first meeting and measurements at our home, everything was explained clearly and in a very friendly way, which made it easy to choose the right options. We received a clear and professional quotation, and once we agreed, the installation team arrived exactly as planned. The windows, frames, and exterior cladding were installed with great care and craftsmanship. The result is beautiful, our house looks much better and the insulation has improved a lot. Many thanks to Ömer, Numan, and Muhammet for their help and dedication, especially Muhammet for going the extra mile during installation. We are very happy with the result and would definitely recommend Bos Kozijnen.
B.O.S Kozijnen, what a transformation our apartment has undergone. It has turned out absolutely stunning; these people live up to their promises! The price, the quality, solid, and delivered perfectly on time. It is unbelievable that this is a very well-functioning team; we take our hats off to this amazing result. They worked incredibly hard, thank you very much for this 👌🏼
We recently replaced all our windows and are extremely satisfied with both the materials and the service provided. From start to finish, the team was professional, efficient, and delivered top-notch quality. The installation process was smooth, and the craftsmanship was evident in every detail. The new windows not only look fantastic but also significantly improved the insulation and soundproofing of our home. We highly recommend their service for anyone looking for quality materials and exceptional workmanship.
BOS Kozijnen really did a great job for us. Some time ago a contractor installed wrong some windows and we were having water leakages. Many windows and roof specialists came to see the problem but nobody really understood it. Then BOS Kozijnen came and understood the problem and solve it very fast and for a reasonable price. I am very happy with their quality service and professionalism.
Great company, workers very professional, they changed the whole windows of the apartment and they look amazing, great quality and on time, i recommend them to anyone who is looking for good quality and great service