A power strip protects a lamp. A panel-mounted surge device protects the furnace board, the heat pump, the range and every circuit in the house. OSB installs whole-house surge protection across Onset in a single short visit.
“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.”
“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.”
“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.”
It's one of the cheapest protective upgrades available — typically a few hundred dollars installed when there's panel space. Far less than one furnace control board.
No, it layers with them. The panel device knocks down the big hit; point-of-use strips clean up what's left for sensitive electronics.
Nothing stops a direct strike. Surge devices handle the far more common nearby strikes, utility switching and grid transients that quietly kill appliance boards.
Usually under two hours in a Onset home, with a short power interruption.
That's the best time to do it, and it's the cheapest moment too.
Knob-and-tube and aluminium replacement
See serviceCKT 15ARecessed, outdoor, LED retrofit
See serviceCKT CAT6Automation, structured wiring, hubs
See serviceCKT 24/7No power, sparks, burning smell
See serviceCKT 60ALevel 2 and Tesla Wall Connector
See serviceCKT 20AGFCI, USB, dedicated circuits
See serviceFlat pricing quoted before the work starts. Same-day and next-day slots available across Massachusetts.
A plain breakdown of what actually moves the number on a Massachusetts panel upgrade quote.
ReadGUIDEOverload, short circuit or ground fault — each has a different cause and a different fix.
ReadGUIDEThe old wiring in your attic, explained — plus what a staged rewire actually looks like.
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