When I got the exterior siding of my home replaced, we also wanted to have our electrical meter box replaced because it was falling off the side of the house.
The work we originally thought was needed was just a new meter box. Turned out we needed a new wire run from the meter all the way to our water line, a new pipe for the underground wiring, two additional grounding wires.
The utility said it wasnt their problem as the meter itself is their property but the housing, the way it attaches to the house, and the connection to the transformer was our responsibility to pay for.
Nearly $2000 to get a simple meter box replacement. Edit: Because this work was to be done in tandem with the siding replacement to avoid expensive rework, we didn't have much of an option in shopping around as most electricians did not want to deal with coordination with the utility around disconnect and inspection.