Yes, we recommend 12 feet as the maximum distance between the TV and outlet. While we can't hide your power cable in-wall because of fire code regulations, we can use a cable concealer to limit the amount of cord that is visible. Be aware that our mounting service does not include the modification of existing outlets or any high voltage wiring. You must arrange for any required electrical modifications to be made before we arrive if an outlet needs to be installed closer to the mounting location. We can help you set up this electrical service. Give us a call at 1-800-433-5778.