If your Winthrop 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.
“They rewired our restaurant kitchen overnight so we never closed a single service. That mattered more than the price, honestly.”
“Office fit-out on a tight deadline. They worked around our contractor, hit every date, and the inspection passed first time.”
“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 Winthrop 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 Winthrop 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 Winthrop housing stock.
Troubleshooting and fault finding
See serviceCKT CAT6Automation, structured wiring, hubs
See serviceCKT 20AGFCI, USB, dedicated circuits
See serviceCKT 100AStandby and whole house backup
See serviceCKT 14/2Knob-and-tube and aluminium replacement
See serviceCKT SPDPanel-mounted surge protective devices
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.
ReadGUIDEThree legitimate fixes, one of which is far cheaper than a rewire.
ReadGUIDEOverload, short circuit or ground fault — each has a different cause and a different fix.
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