Lutron is the leader when it comes to silent motorized shades. (http://3blindmiceusa.com/brands/lutron/)
In the past Lutron has only been available in a hard-wired system, but today they have a great battery option in the Serena line. The battery motorized roller shade is completely silent and works without any wires.
The communication to the motor is wireless so there is no need for an electrician, wiring, cutting into walls or expensive wire.
The unique fabric covered cassette nicely covers the roller shade hardware and batteries. As you see in the video changing batteries is a snap! There is no need to call a technician to do this anyone that knows how to change batteries in a item can do it on this shade system.
Fabrics come in a variety of colors, openness factors, and we can even do blackout fabrics. This also works well for French Doors since it is harder to get electrical wiring through the door on standard wired motorized shades.