Charging on a standard outlet gets you a handful of miles an hour. A Level 2 charger fills the battery overnight. OSB installs home and workplace EV charging across Groton, including the load calculation your panel actually needs.
“Bought an EV and had no idea what my panel could handle. They did the load calculation, told me straight that I had room, and installed the charger two days later.”
“We had knob-and-tube in the attic and our insurer was getting nervous. They rewired in stages so we never lost power for more than a few hours at a time.”
“Breaker had been tripping for months and two other companies just replaced parts. OSB traced it to a backstabbed outlet behind a bookcase in twenty minutes.”
A short run from a panel with free capacity is often under a thousand dollars plus the unit. Long runs, trenching, or a panel upgrade raise it. We quote flat after a quick look at your panel.
Not always. A load calculation decides it. Many Groton homes on 200 amp service take a 48A charger without changes; older 100 amp services often need an upgrade or a load-management device.
Yes — hardwired, commissioned, and set to the right breaker size for your vehicle and panel.
Most Groton installs are done in a few hours. Trenching to a detached garage or a same-day panel upgrade extends it to a full day.
We file it, meet the inspector, and hand you the closed permit for any rebate paperwork.
Standby and whole house backup
See serviceCKT 14/2Knob-and-tube and aluminium replacement
See serviceCKT 200A100A to 200A service, breaker boxes
See serviceCKT 24/7No power, sparks, burning smell
See serviceCKT SPDPanel-mounted surge protective devices
See serviceCKT DIAGTroubleshooting and fault finding
See serviceFlat pricing quoted before the work starts. Same-day and next-day slots available across Massachusetts.
The old wiring in your attic, explained — plus what a staged rewire actually looks like.
ReadGUIDEWhat to decide before you book a Level 2 charger install — and the load calculation that decides for you.
ReadGUIDEThis is the one electrical symptom that should never wait until morning.
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