Home EV charger installation: garage, driveway, and the panel in between

The four common house situations

Attached garage, panel in the garage

The easy case, and worth recognizing as such. A short surface-mounted run, no finished surfaces disturbed, and a job that is often measured in hours. If this is your situation and a quote is large, the reason should be the panel, not the run.

Attached garage, panel elsewhere in the house

Cost follows the route. Through an unfinished basement or an accessible attic it stays modest. Through finished, occupied rooms it becomes drywall work, patching and paint, often by a second trade.

Driveway or carport

An outdoor installation: weather-rated equipment, sealed penetrations, and a mounting position that keeps the connector out of standing water and out of the way of a car door.

Detached garage

The step change, because the circuit has to cross open ground. That means a trench, conduit and reinstatement, and a prior question: what feeds the detached structure today, and can it carry a charger at all, or does the charger need its own run from the house?

If you rent

A charger is a permanent alteration to somebody else's property. Written permission from the owner comes first, and it is worth settling three things at the same time.

• Who owns the equipment at the end of the tenancy, and whether it stays or is removed.
• Who pays for the installation, and whether any of it is recoverable.
• Who pays for the electricity, and how that is measured if the meter is shared.

Some jurisdictions have statutes addressing charger installation for renters or condo owners; their scope varies considerably, and none of them removes the need for a conversation with the owner. If you are in a condo or an apartment building, the situation is different enough to deserve its own page.

Getting a useful quote for a house

1. Photograph the panel, cover closed, main breaker rating visible, and the parking position from the doorway.
2. Pace the distance between them along the route the cable would take, not in a straight line through walls.
3. List the electric appliances: range, dryer, water heater, air conditioning, heat pump, pool.
4. Note whether the run would cross finished space, and whether you care about the finish.
5. Say when you want it done, and whether a second vehicle is likely.

That is five minutes of work, and it converts three vague quotes into three comparable ones, see what drives the cost.

Frequently asked