Direct service from Velux excellent. Actual windows provided by builder. Also blinds - variety of styles not apparent with builder or retailer. Need for pole to control windows and blind and small catches for blinds not apparent until we moved in.
My only criticism is the instructions for replacing a blind. There is a video online which is too far from the man doing it to see clearly. The written instructions were very basic. I needed reassurance that releasing the top bar of the old blind takes a lot of pressure. I was doing it too gently for fear of breaking something. Luckily I watched a video on YouTube where a tradesman replaced a blind and talked you through it, which we really helpful x