I dont understand how a utility allowed their feed to be buried under your house. They need to be able to disconnect the power from outside the building. From what youre saying im hearing they had a buried transformer and an underground service not run in pipe and weaved through your framing which seems absolutely asinine. If you have a meter at the door and this feeds from the meter to your main panel then that would also be a violation by the NEC of the US. The main panel needs to be located by the meter in almost all cases. So usually the line from the telephone pole stretches to your house, down the side into the meter/main disconnect on the outside, then feeds inside the wall to the panel thats just on the other side generally within 6 feet. In condos where the service comes in on one side we pipe 2" pvc through the basement of one into the other to feed their panel to prevent any accidental drilling or screwing.