A useful EV installation plan connects five decisions: the vehicle’s needs, the home’s electrical capacity, the route to the parking space, local approval requirements and a written scope. Start with those inputs before buying a charger or assuming a panel upgrade.
Define the daily charging requirement
Record the vehicle model and year, normal daily driving, starting and target charge, and the hours it usually stays at home. Include a second vehicle or a planned change in use. Level 1 may be adequate for some routines; Level 2 supplies more available AC power when the vehicle and circuit support it. Neither level guarantees a particular number of miles per hour for every vehicle.
The wall unit supplies AC power to the vehicle’s onboard charger. Actual battery energy delivered also depends on vehicle limits and losses. Public DC charging uses a different path, so its advertised power is not a specification for a household charger. See the manufacturer’s current vehicle and charging-equipment instructions before comparing connector options.
Assess the supply before choosing maximum output
The review covers the service and panel, connected loads, any relevant subpanel or feeder, and the proposed charging output. An empty breaker slot addresses space, not available electrical capacity. A recently built home is not automatically ready for the largest charger, and an older home does not automatically need a new service.
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Compare a suitable lower output, compatible load management and a panel/service upgrade when needed. Each option needs a defined installation. The capacity decision guide explains how daily demand and the existing supply affect the choice. Avoid generic wire-gauge charts that ignore wiring method, terminal ratings and route conditions.
Draw the route to the parked vehicle
Show the proposed charger position and where the vehicle’s port will be when parked. Identify doors, stairs, finished ceilings, exterior walls and any detached building along the route. The shortest straight-line distance is not always the easiest or least disruptive route for wiring.
Compare plug-in and hardwired configurations using the exact equipment instructions. Existing receptacles need assessment for condition, circuit design and protection before sustained charging. For outdoor work, consider drainage, impact protection and cable storage; for underground work, plan utility location and restoration. The outdoor installation guide covers those site-specific decisions.
Confirm the authority for the actual address
A mailing city does not always identify the permitting jurisdiction. Fairfax City and Fairfax County, for example, are separate authorities. Covered circuit or equipment work needs the applicable approval process; simply plugging suitable equipment into an existing compliant arrangement is not the same scope as adding a new circuit.
Fairfax County’s EV charging guidance describes its permit path. Shared parking or work affecting common property can also need property-owner or association permission. Public sidewalks and curbside installations have separate constraints. The written proposal should identify permit coordination and required inspections, while the authority controls approval and review timing.
Compare quotes with matching inclusions
AJ Long Electric’s typical Level 2 circuit and hookup is $1,200–$3,500. Documented long, detached, outdoor, trenched or otherwise complex routes can extend to the $1,200–$4,500 total band. EVSE hardware is separate; a needed 200-amp panel scope is separately quoted within $3,500–$7,500.
Ask which equipment, wiring route, protection, mounting, permit work, excavation and finish restoration are included. A low total without those details is difficult to compare with a complete scope. Manufacturer promotions, tax rules and utility programs change; verify current eligibility directly and do not count an unapproved incentive as part of the installation price.
Prepare the request and retain the handoff records
Send the address, vehicle and charger details, safe photos of accessible closed equipment, parking photos and any existing circuit documents. Describe access restrictions and your preferred route. Estimates for planned installations are free. Troubleshooting an existing failure is a separately priced service; explain the symptoms rather than assuming replacement is the answer.
After reviewing the request, the office confirms the appropriate next step and scheduling. The installation handoff should identify the circuit and commissioned settings, equipment instructions, applicable inspection documentation and support responsibilities. Quoted electrical installations include a five-year workmanship warranty; manufacturer equipment warranties remain separate. Use the EV charging service page to request a project review.
