Hi. We used Stuart Murphy of Bespoke Curtains & Blinds to advise and fit our large electric blinds.
www.bespokecurtainsblinds.com, 020 3601 7496
He was very helpful, and reasonable price compared to others too. Our motors are by Somfy, the material is very slightly see through, so you can still see outside a little if you have them down in the daytime to reduce glare, but can’t see through at night (can’t remember the name of the material but Stuart will know).