Nor'easters take Chelmsford power out for days, not hours. A standby generator starts on its own, carries the circuits that matter, and shuts down when the utility returns. OSB sizes, sets and wires the whole system.
“Garage had one outlet and a light on the house circuit. Now it has a sub-panel and I can actually use my tools.”
“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.”
“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.”
It depends on whether you want essential circuits or the whole house. A typical Chelmsford single-family runs well on 18-24kW for whole-house coverage; essentials-only systems can be half that.
Usually one to two days of electrical work once the pad is set and the fuel line is run.
Both. Natural gas is simplest where Chelmsford has a service line; propane is the answer where it doesn't.
Yes — the automatic transfer switch senses the outage, starts the unit, transfers the load, and switches back when utility power is stable.
We do. Annual testing, oil and filter service, and battery replacement are all available in Chelmsford.
GFCI, USB, dedicated circuits
See serviceCKT DIAGTroubleshooting and fault finding
See serviceCKT 14/2Knob-and-tube and aluminium replacement
See serviceCKT 15ANew boxes, remotes, high ceilings
See serviceCKT SPDPanel-mounted surge protective devices
See serviceCKT 60ALevel 2 and Tesla Wall Connector
See serviceFlat pricing quoted before the work starts. Same-day and next-day slots available across Massachusetts.
Sizing, fuel, transfer switches, and the honest answer on whether you need whole-house coverage.
ReadGUIDESpacing rules, colour temperature, and the mistake that makes a ceiling look like an airport.
ReadGUIDEThree legitimate fixes, one of which is far cheaper than a rewire.
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