Level 2 EV Charger Installation in Seattle
Konsker Electric has been installing residential Level 2 EV chargers across the Seattle metro since 1923. A Level 2 charger runs on a dedicated 240V circuit and delivers 20–30 miles of range per hour of charging. We start every job with a metered load calculation at the panel — not a glance and a guess — because the correct circuit size depends on what's already running in your home. If your panel needs a breaker slot or a capacity upgrade before the charger circuit goes in, we'll tell you that before we pull a permit, not after. Level 2 EV charger installs require an electrical permit in Washington, pulled by a licensed electrical contractor.
Get A Free Quote(206) 260-1981What a Level 2 Charger Actually Requires
A Level 2 electric vehicle charging station needs a dedicated 240V, 40–50 amp circuit — the same voltage as an electric range or dryer. The charger mounts to the wall and connects via a hardwired connection or a NEMA 14-50 outlet. Before we run any wire, we do a load calculation. Adding a 40–50A EV circuit without checking what's available is how you end up with tripped breakers or, worse, an overloaded panel that's a fire risk. We calculate available capacity, confirm breaker slot availability, and size the circuit correctly. If the panel's full or undersized, we'll tell you what a panel upgrade involves before we go any further.
The Permit and Inspection Process
Washington State L&I and Seattle DCI both require a permit for new 240V circuit installations. The permit is pulled by the licensed electrical contractor — that's us, not you. Insurance companies are increasingly checking permit history on EV-related claims, and an unpermitted circuit can complicate a home sale when the buyer's inspector finds it. After rough-in, the inspector schedules a visit. Inside city limits, that's Seattle DCI. Outside the city, it's Washington State L&I. Inspection slots typically open within a few business days of request — we factor that into your project timeline from the start.
Utility Coordination — SCL and PSE
If your home needs a service upgrade to support the new load, Seattle City Light service upgrade applications currently carry a lead time of 6–10 weeks. Puget Sound Energy timelines vary but are similar. We file the application, communicate with the utility on your behalf, and schedule our work around their disconnect/reconnect window. The surge protection requirement under NEC 230.67 also applies to any service upgrade, and we include that in the scope automatically.
Charger Placement and Circuit Routing
A garage on an exterior wall adjacent to the panel is the simplest case — short conduit run, minimal wall penetrations, fast install. A detached garage, a carport on the opposite side of the house, or an outdoor surface-mount location all add conduit length and labor. We walk the location with you before pulling the permit so the routing plan is set. Outdoor and exposed runs use weatherproof conduit. We route for the cleanest result that still meets code.
Frequently Asked Questions
Do I need a permit to install a Level 2 EV charger at home?
Yes. In Washington State, a new 240V circuit — which is what a Level 2 charger requires — needs an electrical permit. Inside Seattle city limits, that permit is issued by Seattle DCI. Outside the city, it's Washington State L&I. The permit must be pulled by a licensed electrical contractor, not the homeowner.
Can my existing panel handle a Level 2 charger?
That depends on your panel's rated capacity and what's already running in your home. A 200A panel with modern appliances often has room for a 40–50A EV circuit. A 100A panel in an older home with electric heat may be maxed out. We do a load calculation before anything else — that's the only honest way to answer this question.
How long does a Level 2 EV charger installation take?
A straightforward install — attached garage, panel with available capacity, short circuit run — typically takes 3–5 hours of on-site work. Jobs that require a panel upgrade, longer conduit runs to a detached structure, or utility coordination with Seattle City Light or PSE take longer.
Is surge protection required when installing an EV charger?
Whole-house surge protection is required under NEC 230.67 for any new service installation or service upgrade in Washington. If your EV charger install triggers a service upgrade, surge protection becomes part of the required scope.
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