If your Ashburnham 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.
“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 straightforward 100 to 200 amp upgrade in Ashburnham 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 Ashburnham 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 Ashburnham housing stock.
Offices, retail, restaurants, warehouse
See serviceCKT 60ALevel 2 and Tesla Wall Connector
See serviceCKT CAT6Automation, structured wiring, hubs
See serviceCKT 14/2Knob-and-tube and aluminium replacement
See serviceCKT 15ANew boxes, remotes, high ceilings
See serviceCKT 24/7No power, sparks, burning smell
See serviceFlat pricing quoted before the work starts. Same-day and next-day slots available across Massachusetts.
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