What actually drives the price
Installed cost is mostly determined by three things, none of which is the charger
itself:
Distance from panel to parking spot
The single biggest variable. A charger mounted on the other side of the wall from
the panel is a couple of hours of work. The same charger 60 feet away, across a
finished ceiling or under a driveway, can triple the labour. Trenching through
concrete is the expensive case.
Spare capacity in your panel
A 200-amp panel with free breaker slots is straightforward. A full 100-amp panel
means either a load-management device — which lets the charger back off when the
dryer and oven are running, usually a few hundred dollars — or a full service
upgrade at $3,000 to $8,000. We will always price the load-management option first,
because it solves the problem for most households at a fraction of the cost.
Whether the wall is finished
An unfinished garage lets us surface-mount conduit quickly. Finished drywall means
fishing cable, cutting access holes and patching. Not difficult, but it is time.
Permits are not optional and the shortcut is not worth it. An
unpermitted 240-volt circuit will surface during a home sale, and insurers have
declined electrical-fire claims on unpermitted work. The permit fee in most Bay
Area cities is modest relative to the exposure. We include it in the quoted price
rather than treating it as an add-on.
Timelines you can plan around
Typical project duration by type
| Project |
On-site time |
Total elapsed |
| Home Level 2, panel has capacity |
4–6 hours |
1–2 weeks including permit |
| Home Level 2 plus panel upgrade |
1–2 days |
3–6 weeks, utility dependent |
| Commercial Level 2, 4–12 ports |
2–5 days |
4–10 weeks |
| DC fast charging, new service |
1–2 weeks |
3–9 months, driven by utility |
Elapsed times assume normal permit queues. Fremont, San Jose and Oakland residential
electrical permits are commonly issued within a few business days; complex commercial
plan checks take longer.