A:Answer When mounting over a fireplace into rock, or even into a cement wall, we’d like to perform a free in-home consultation before work is completed, as each job with this type of work can be unique. Please give us a call 24/7/365 at 1-888-BESTBUY (1-888-237-8289) so we can set that up for you. If you are purchasing the TV and mounting hardware with Best Buy, installation is included for you under your membership. If you already own the TV, or have already purchased it elsewhere, mounting to cement, which is an advanced service, is $349.99 and you would get 20% off with your Best Buy Total Tech membership.