Mount TV on the wall in Manukau City Centre, Auckland

Hi, I need help installing my TV - Size : 61” to 70” - Brand : Panasonic - Model : Not sure - Wall type : Gib - Cables concealed in the wall : ✅(Yes) - Mount/stand provided : No, installer to source - Mount preference : Tilt (Slight motion vertically) - Additional devices to be connected : None Due date : Before Wed, 1st Feb Thanks