The link above will tell you what the conditions are. Just like you got to be a certain age to drive a car, you got be a certain age to have a regular, full time job during normal school hours, for example.
1 Most installation jobs will be within the $200 to $350 range. 2  For those who want to do the job on their own, a wall mounting kit will cost anywhere from $20 to $75. 3  For instance, this highly-rated Cheetah Mount retails for $25. Running audio wires can add to the cost. 2  Additional accessories, such as an HDMI cable, can cost $25 to $90. 3  If you also want to mount your DVD player and other systems, you will need a shelving bracket to be installed next to or beneath your TV.
Simply pay for the service you want, nothing more. For example, Basic tv wall mounting installation does not include concealed wires, so you save $70. Advanced tv wall mounting installation does not include electrical outlet installation, so you save $250. You can also add different components to any package, such as adding in wall power concealment for only $125.