After a lot of research, I chose BlindsCo Ltd (Blinds Direct Online) as they had the exact blinds I wanted at the price I was willing to pay. I noted that this company was also listed on TopCashBack, with 16.5% cashback through their service. The online videos explained how to measure the space correctly, and this made me feel confident that I was getting the measurements right. The website was easy to use, and I was able to choose what type of measurement I wanted as either cm, mm, or Inches. I entered my measurements and I had the price immediately. You can custom the blinds also, by having the option to choose which side the blind controls were made. Easy. Delivery was quick, about 10 days or so. Communication was great by the company, I had a few emails from them to update me on the expected delivery date. Now to the blinds themselves. They were well packaged, and protected in transit. A quick refresher read of the pdf document on the website, and they were fully fitted in about 20 minutes or so. (4 Perfect Fit Patio Door Blinds). They look and work really well, almost look as if they are part of the patio doors themselves. The blinds block more light than I was expecting (a good thing), and fit the space really well. Overall we are really happy with the company and these Perfect Fit Blinds.