Tilting TV Wall Mount Installation

I'm in need of a professional who can securely install a tilting mount for my TV, which is 55 inches, on a drywall. I would also like the aerial and power cables concealed behind the wall and brought out at floor level where there are existing wall sockets to connect to. The individual should have previous experience with this type of work, specifically with large TVs and drywall installations. Understanding the nuances of TV mount installation is crucial, as I want it positioned with precision and safety in mind.