I had 2 licensed electricians come to my house to see if we can upgrade our current 100-amp panel to a 200-amp one. The utility company's service feed line is underground. The first electrician said that he could upgrade the panel to 200 amp but we'll have to involve the utility company to upgrade the service feed line and will require us to break the sidewalk and trench the yard to do it. The second electrician said the existing service feed line is capable of drawing 200 amps and that we don't need to get permits but if we want to, it'll cost an extra ~$1.5k. But still says the existing service feed line is sufficient. This guy is also much cheaper. Both are licensed and have 5 stars on Google / Yelp with hundreds of reviews. How is this possible? What is this service called and what would you do if you were in my situation?…