If your South Grafton home still runs on a fuse box, a 60 or 100 amp service, or a panel brand that insurers flag, an upgrade is the single biggest electrical improvement you can make. OSB handles the permit, the utility coordination and the swap.
“Two-prong outlets all through a 1920s house. They grounded what could be grounded and GFCI-protected the rest, then labelled everything.”
“Every smart switch I bought failed because there was no neutral. They pulled neutrals in the rooms that needed it and set up the rest properly.”
“Our panel was original to the house and completely full. OSB upgraded us to 200 amp, pulled the permit, met the inspector, and left the basement cleaner than they found it.”
A straightforward 100 to 200 amp upgrade in South Grafton usually lands in the low thousands. Cost moves with mast height, meter location, grounding work and whether the utility needs to reset the drop. You get a flat quote before we start.
Most South Grafton panel swaps are a single day, with power off for part of it. Larger service upgrades that need utility scheduling can run into a second day.
Yes — service and panel work is permitted and inspected in Massachusetts. OSB files the paperwork and meets the inspector so you don't have to chase it.
For nearly every single-family home, yes — including one EV charger, a heat pump and an induction range. Very large homes or two EVs sometimes justify 320/400 amp service.
Regularly. Fuse-to-breaker conversions are one of the most common jobs we run in older South Grafton housing stock.
Recessed, outdoor, LED retrofit
See serviceCKT 15ANew boxes, remotes, high ceilings
See serviceCKT 3PHOffices, retail, restaurants, warehouse
See serviceCKT SPDPanel-mounted surge protective devices
See serviceCKT 14/2Knob-and-tube and aluminium replacement
See serviceCKT 100AStandby and whole house backup
See serviceFlat pricing quoted before the work starts. Same-day and next-day slots available across Massachusetts.
What 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.
ReadGUIDEOne protects people. One protects buildings. They are not interchangeable.
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