Electrical
EV Chargers in New Hampshire, New Jersey & Southern Maine
A Level 2 charger is an electrical job with a charger on the end of it. We start at your panel, not at the box on the wall.
Electrical
A Level 2 charger is an electrical job with a charger on the end of it. We start at your panel, not at the box on the wall.
Every EV ships with a cord that plugs into an ordinary 120-volt outlet. That is Level 1, and it returns roughly three to five miles of range an hour. Left alone overnight it gives you about 40 miles back. If you drive twenty miles a day and park in a garage, that is genuinely enough, and you can stop reading here.
Level 2 runs at 240 volts, the same as your dryer or range, on its own dedicated circuit back to the panel. A 32-amp unit returns something like 25 miles an hour. A 48-amp unit gets closer to 40, which means an empty battery is full by morning no matter what you did the day before. What people underestimate is where the work sits. The charger you hang on the wall is the simple part. The circuit feeding it is the job.
Nobody works this out on paper. You notice it during a week when the car never quite catches back up.
There is one more sign, and it is the serious one. A Level 1 cord pulls around 12 amps for ten hours straight, which is far more than a general-purpose receptacle was designed to do night after night for years. A warm plug or a browned faceplate on the outlet you charge from means that circuit has had enough. Shut it off and stop using it.
The first question is never which charger to buy. It is whether your service has room for one. Charging counts as a continuous load, so code requires the circuit be sized at 125 percent of what the unit will actually draw. A 48-amp charger needs a 60-amp breaker and conductors to match. That is a large block of capacity to find in a house already running an electric range, a well pump and maybe a heat pump.
So we run a real load calculation instead of eyeballing the panel and guessing. Where the numbers come out tight, code also lets us use twelve months of metered demand data from your utility plus a safety margin, and that frequently shows a house drawing far less than its nameplate suggests. A lot of 100-amp services pass that way.
When one does not pass, a full service upgrade is not the only path forward. A load management system watches the incoming service with current sensors and throttles or pauses the car whenever the rest of the house peaks. Your car is charging at two in the morning anyway, when nothing else is running. It is recognized by code, it costs a fraction of a service upgrade, and it is the right answer more often than homeowners expect.
A plug-in charger on a 14-50 receptacle is the familiar setup, and it caps you at 40 amps of continuous draw. It also puts a receptacle in the circuit, and receptacles in garages and outdoors now require a GFCI breaker. Your charger already has ground-fault detection built into it. Two protective devices watching the same current is the classic recipe for a breaker that trips at three in the morning for no reason and a car that is empty at seven.
Hardwiring skips the receptacle and the external GFCI breaker both, and it is the only way to run above 40 amps. What you give up is portability, which almost nobody uses twice. We install either one. We will tell you which your situation actually calls for.
Cost tracks the electrical work, not the equipment. Distance from panel to parking spot. Whether that run crosses open basement joists or has to be fished through finished walls. Whether the panel has two adjacent full slots free. Whether it is one of the obsolete panels that no longer has a listed breaker made for it, in which case nothing new should be added to it at all.
An attached garage is the easy case. Detached is where budgets move, because that needs a buried feeder, its own subpanel and a disconnect at the structure. In granite country the trench can hit ledge less than two feet down and change the entire plan, so we look at that before quoting rather than during.
Outdoor mounting works fine here, provided the unit is rated for it and mounted by someone who has seen a New Hampshire February. That means a NEMA 4 rated enclosure, the head set high enough to clear a plowed snowbank, and the holster angled down so it cannot fill with meltwater and freeze into an ice cup. Charging cables also stiffen badly below freezing, so we leave the cord a route it can take when it is cold and rigid, not only when it is warm and limp.
On the Jersey Shore, salt air is what ends outdoor equipment. Stainless hardware, sealed penetrations, and a unit rated for wet locations rather than merely covered. Cold cuts both ways too. Winter range loss is exactly when a slow charger hurts most, and a car left on the wall overnight warms its battery from your house instead of from the pack you need to get to work.
High Ground runs licensed electricians across New Hampshire, southern Maine and northern and central New Jersey, working alongside our HVAC and plumbing crews. That matters here more than it sounds like it should. The homeowners adding a charger are usually the same ones looking at a heat pump, and both want the same panel capacity. We would rather plan that once than twice.
We pull the permit and meet the inspector. In New Jersey a new circuit has to be permitted and filed by a licensed electrical contractor, and the inspection covers the panel work, the conductors, the grounding and the charger itself. Skipping it is how people find out at closing that the work was never on record. Pricing is set before we start, the phone gets answered by a person, and every install carries our Lifetime Workmanship Guarantee.
When you invite us into your home, we take that responsibility seriously. Every project - big or small, is handled with care, respect, and craftsmanship you can feel. Our Lifetime Workmanship Guarantee means every job is done right — or we make it right, fast.
Every technician undergoes rigorous training and continuous skill upgrades.
“They always kept me updated with the schedule. Made a rather complex job run like clockwork.”
- Dave, NH
“Super quick & professional. Looking forward to working with them in the future. Highly recommend!”
- Enrique, NJ
“Went out of his way to help us with our new house that we’d just purchased with helpful tips.”
- Eric, NH
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Can I just charge from a regular outlet instead?
You can, and for a short commute it works. Level 1 adds roughly three to five miles of range an hour, so a normal overnight gets you about 40 miles back. If that covers your driving, you do not need us.
The caution is the outlet. Ten hours of steady draw every night is hard use for a general-purpose receptacle, so use a dedicated one, never an extension cord or power strip, and check it for warmth. If the plug or faceplate is hot, stop charging on that circuit.
Do I need to upgrade to a 200-amp service?
Should I get a plug-in charger or a hardwired one?
How long does the installation take?
Will a charger survive outside through a New England winter?
Do I actually need a permit for this?
Tell us what you need - we’ll confirm your appointment and get your home back to comfortable, fast.
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