Almost every charger quote looks the same on paper: a unit, a circuit, a day of labor. The difference between a good install and a cheap one sits entirely in things that become invisible the moment the cover goes on.
The survey decides everything
Three things have to be measured before a price is honest: the incoming supply capacity, the spare capacity in the panel, and the cable route from panel to parking space. A garage on the far side of the house, a solid masonry wall, or a shared supply each change the job materially. An installer who quotes without asking about those three is guessing.
Load management isn’t optional
A 7kW charger draws roughly what an electric water heater draws, except continuously for eight hours. Without load management that sits on top of everything else in the house and the main breaker becomes the referee. With it, the charger watches the incoming supply, quietly backs off when the oven goes on, and makes the time back later in the night.
The morning itself
A straightforward install runs four to five hours: isolate, run the circuit, mount and terminate the unit, commission, test, then set the app up with you. You’re without power for perhaps twenty minutes of that. Certification and inspection paperwork are filed the same day.