[carcostthrow]

They're actually reasonable, unfortunately.

The garage is detached one fed by a single 120V circuit buried in PVC conduit, and it is enough for everything in there at the moment. But if a car's charging at the same time say someone open's the garage door, it's going to trip the breaker.

So at least I'd have to pull a second circuit dedicated for charging. To do that, the old conduit needs to come out and be replaced with one that is up to code for handling either more then one circuit, or can handle a 240V circuit. The cost of digging the old one out and installing a new one is a very substantial portion of that quote.

Now granted this was a quote for a full 240V circuit with a subpanel; the quote last year was around $2000 ish. Inflation rate, increasing labor costs, and continuing supply chain issues caused the jump. I didn't get a chance to ask what the quote was for just a second 120V circuit though.

The mains upgrade cost is just what I've heard second hand from others upgrading their 100A service to 200A. I haven't gotten a quote for myself but it doesn't sound wrong to me. Just filing the paper work for the permit from the is a $160 fee. The permit itself IIRC is an additional $200 or $300. I suspect the electrician would have to get the utility involved as well to disconnect and upgrade the main lines coming from the street to the house to accommodate the increased possible amperage.