Northern Electrical Services

Backup Power

Standby Generator Installation

Whole-home Generac, Kohler, and Cummins standby units with automatic transfer and load management.

  • Licensed in

    4 states

    MA · NH · ME · VT

  • Master licensed

    Since 2010

    15+ years of installs

  • Google rating

    5.0 / 5

    5 verified reviews

  • Based in

    Leominster, MA

    Serving New England

The problem

Outages in New England aren't rare — they're routine. The question isn't whether the grid will fail; it's whether you'll lose a freezer full of food, a basement to flooding, or a heating system to cold-snap freeze the next time it does.

An automatic standby generator runs on natural gas or propane, lives outside the house, and starts on its own within seconds of an outage. We size the unit to your panel load, install the transfer switch, coordinate the gas line, and program the controller for either whole-home or critical-circuit backup depending on what you need. The system self-tests weekly so you know it'll run when it has to.

“We don’t hand off jobs to strangers. Every breaker, every outlet, every permit — that’s us.”
Josh DaSilva, Master Electrician

Documented work

Recent generators.

  • Exterior 200A meter base in winter — service-side preparation
    Service-side preparation — meter base updated alongside the transfer switch.
  • Leviton smart panel installed for selective backup
    Leviton smart panel — selective circuit backup paired with a smaller generator.
  • Finished panel after generator transfer switch wiring
    Panel after the transfer switch lands — clean buses, surge protection in place.

Why Northern

What you’re actually paying for.

  • Sized to your actual load

    Generator size matched to your panel load — not upsold to the biggest unit on the truck. A 22kW is overkill for most homes; 18kW handles whole-home for a typical 3-bedroom.

  • Smart-panel pairing

    If you want selective circuit backup instead of whole-home, we pair the generator with a Span or Leviton smart panel. Cheaper unit + lower fuel use, same effective coverage.

  • Live commissioning test

    We simulate a real outage at commissioning — drop utility power, time the start, verify the load transfer. You see it run before we leave.

  • Annual maintenance available

    Optional yearly tune-up: oil, filters, battery, valve clearances, transfer switch check. We service what we install.

Implementation

What the day looks like.

A typical standby generator install is a two-day project: day one sets the pad and runs the conduit plus gas line, day two terminates the transfer switch, programs the controller, and verifies the auto-start cycle. The unit self-tests weekly to confirm it's ready before the next outage.

Pairs cleanly with a Span or Leviton smart panel for selective circuit control and remote monitoring.

Frequently asked

The questions that come up before booking.

  • Natural gas or propane?

    Either. Natural gas is preferred where it's available — no tank to refill. Propane works where gas isn't piped; tank size typically 500-1000 gallons for whole-home runtime.

  • How loud is it?

    Modern Generac and Kohler units run around 65-70dB at 7 feet — about the noise level of a normal conversation. Quieter than a window AC.

  • Do I need a smart panel?

    No, but it helps. Smart panel lets you back up only critical circuits, which means a smaller cheaper generator. Without a smart panel, you size for the whole panel or do a load-shedding ATS.

  • How often does it self-test?

    Weekly by default, around 5 minutes. Configurable — some homeowners prefer monthly or shorter test durations.

  • What about service and maintenance?

    Annual tune-up recommended: oil, filters, battery check, transfer switch verification. Optional maintenance contract available if you'd rather not track it yourself.

Begin a project

Ready for generators?

Send a quick note through the intake form, or call directly. On-site walk-throughs scheduled within the week.