Hi bubblegum,
The installation includes the setting up the camera using your pc. If you only need to set up your smart phone, it is free. Our guy who will send you the camera will do it for you. Anyway, installation using your own pc is also very simple. You can easily manage yourself.
As for wall mounting, you do not need to drill any hole. All you need is just a good 3m double side tape. For power supply, you just need a extension plug.
The Radicam guy will also advise you where will be a good location to install your camera where you can have the maximum view of your house.