8. ELECTRICAL NEGLECT – A very common mistake made when renovating is not upgrading your electrical panel. The electrical panel needs to be up to code and before you do any kind of renovation or ever think about starting demo you need to walk the job with an electrician to make sure you have every detail handled before you ever begin removing walls. Lighting is one of THE most important elements in a home renovation; it can make or break a space and it can change the mood of a room. And remember there are three kinds of lighting: Accent Lighting, Task Lighting and Mood Lighting. Most people focus ONLY on task lighting and forget the other critical lighting types.