On Tue, 19 Feb 2019 15:28:42 -0800 (PST),
wrote:

I accidentally drilled a hole in the service entry wire a few months ago. Other than the light briefly flickering when it initially happened but other than that I hadn’t caused any problems at all. I know I got extremely lucky! I got a quote from an electrons of 925$ to replace it but I’m wondering if it needs to be replaced since it hasn’t caused any problems?

Did you wrap the wire with good electrical tape.

Putting in a doggie door, through the wall, a wire was nicked by a
sawzall blade. Tapped it -- it was not terrible. Bubba did it. I
found it :-)