The Complete EV Charger Installation Checklist (Before Your Electrician Arrives)

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Your electrician's time costs $75-$150 per hour. Every question you can answer before they arrive saves money. Every decision you make in advance prevents a second visit. Here's exactly what to have ready.

Before You Call the Electrician

1. Know your electrical panel specs

Open your electrical panel (the metal box, usually in the garage or basement). Look for:

Main breaker amperage: Usually 100A, 150A, or 200A (stamped on the main breaker)
Available breaker slots: Count empty spaces — you need 2 open slots for a double-pole 50A breaker
Panel brand: Note the manufacturer (Square D, Siemens, GE, etc.)

Ev charger installation checklist before electrician arrives — practical guide overview — Ev charger installation checklist before electrician arrives

Quick panel check: If your main breaker says 200A and you have 2+ empty slots, you're probably fine. If it says 100A, you'll likely need to discuss a panel upgrade or load management solution with your electrician.

2. Measure the distance from panel to charger location

The farther the wire run, the more it costs. Measure from your electrical panel to where you want the charger mounted. Every 10 feet of additional wire adds $50-$100 to the installation. If the run is over 50 feet, you might need thicker (more expensive) wire to prevent voltage drop.

3. Decide where to mount the charger

Consider:

Where your car's charge port is when parked
Cable reach (most chargers have 20-25 foot cables)
Height — mount at chest height for comfortable plugging/unplugging
Indoor vs outdoor — outdoor locations need NEMA 4-rated equipment

Ev charger installation checklist before electrician arrives — step-by-step visual example — Ev charger installation checklist before electrician arrives

Take photos: Photograph your electrical panel (door open, breakers visible), the mounting location, and the path between them. Text these to your electrician before the appointment. A good electrician can give you a tighter estimate with photos.

Decisions to Make Before Installation Day

Hardwired or plug-in?

Plug-in (NEMA 14-50 outlet) lets you unplug and take the charger if you move. Hardwired is permanent but may allow higher amperage in some jurisdictions. Most homeowners choose plug-in unless code requires hardwired.

Amperage: 40A vs 48A vs 60A circuit?

The 80% rule means a 50A circuit delivers 40A continuous, and a 60A circuit delivers 48A continuous. Most Level 2 chargers draw 40-48A, so you'll want at minimum a 50A circuit. A 60A circuit gives you headroom for future chargers.

Electrical safety note: EV charger installation involves high-voltage wiring. This is not a DIY project. Improper wiring can cause fires, void your homeowner's insurance, and damage your vehicle's charging system. Always use a licensed electrician.

Do you need a permit?

Check your city or county's building department website, or ask your electrician. Many jurisdictions require an electrical permit for new 240V circuits. Your electrician usually handles the permit application, but you should know the requirement and cost ($0-$200) upfront.

Day-Of Installation Checklist

Clear the area around your electrical panel — electrician needs full access
Clear the mounting area — remove shelving, bikes, or anything in the way
Have your charger unboxed and ready (unless electrician is supplying it)
Ensure WiFi reaches the garage if you're installing a smart charger
Make sure the garage door can stay open (electrician may need to turn off main power briefly)
Have your car available to test the charger after installation

Installation typically takes 2-4 hours for a straightforward panel-to-garage run. Add 1-2 hours if wire needs to run through walls, attic, or crawlspace. A panel upgrade adds 4-6 hours.

Questions to Ask Your Electrician

Can my panel handle a 50A/60A circuit without an upgrade?
What's the total cost including permit and inspection fees?
Is the estimate fixed or hourly?
Do you handle the permit application?
What warranty do you offer on the installation?

Being prepared turns a potentially stressful installation into a smooth 3-hour project. Use our Charger Compatibility Checker to make sure your charger choice matches your vehicle before installation day.