You most likely will not need an electrician to do a minor addition or remodel. It is always a good idea to get some electrical work done by a professional, just to be safe. But, if it is a simple job, like putting in a new light fixture or changing out an old switch, you should be able to do it yourself without any trouble. If you are planning on doing something more complicated, like running new wires or adding new outlets, then you should definitely call in a professional electrician. Electrical work can be dangerous if it is not done properly, and it is best to leave it to the experts.

Generally, no. However, it is always best to consult with an electrician to make sure that the work is done safely and according to code. Adding or remodeling electrical installation can involve a lot of work, and it's important to make sure that everything is done properly so that there is no risk of fire or electrocution. Working with an experienced electrician will ensure that the job is done safely and correctly.