Having had single storey build with a large lantern fitted I was very happy to find skylight blinds offer a diy supply only fit. This was one of my best purchases from start to finish . From having a boiling hot room in summer to now a cool room with no glare once the blind is closed ,great now for watching television . On a cold day the blind keeps the heat in , which has made a significant difference from being open 👍 Being a diy fit I was a bit nervous about installing the blind , but I needed not worry with the help of the sales team and most of all the YouTube videos was a extremely helpful. I bought a pocket laser measure for the measuring of the opening which was so much more precise and than a tape measure due to the sagging over the length of the opening , I had a difference of 5mm so it a perfect fit worth the small investment to get this right . Guests love our extension and are really impressed with the blind . I was horrified how much companies are charging to have these sort of blinds fitted so diy fit was perfect for me and I saved a lot of money too. I went for the solar powered option which works great Overall skylight blinds have been excellent I could recommend them enough .