When electricity was first introduced on a widespread scale in the United States over a century ago, no one – not even Thomas Edison! – really anticipated how integral it would become to modern life. That century has seen a lot of technological innovation
that continues to this day. Older systems often become obsolete within a generation. For this reason, many older homes need to have their electrical systems upgraded even if they seems to be working properly. Depending on the changes needed – new circuits, grounding systems etc – upgrading can cost anywhere from a relatively modest $950 to as much as $3850.