Skip to main content

Licensed NH Electricians · 10 Years Experience · Franklin, NH

Copp Electric logo

Underground Service

Underground Electrical Service & Trenching in Franklin, NH

Underground electrical service replaces overhead drops or feeds detached structures through buried conduit. Copp Electric handles utility coordination, trench depth and conduit to code, subpanels in garages and barns, and inspection — a cleaner look with far less storm exposure.

Call 603-707-4293Request a quote
Open hillside trench with gray electrical conduit laid before backfill

What’s included

  • Underground service lateral from the utility point of connection
  • Trenched feeds to detached garages, barns, wells, and sheds
  • Properly sized conduit, burial depth, and warning tape
  • Subpanel installation at the outbuilding with its own grounding electrode
  • Utility and dig-safe coordination
  • Permit and inspection

Signs you need this

  • Storms keep taking down your overhead drop
  • A new garage, barn, or shop has no power
  • The well or pump house is on an extension cord
  • You are removing an overhead line during a property renovation

How the job runs

  1. 1

    Locate

    Dig-safe markout and route planning around septic, water, and gas.

  2. 2

    Trench

    Trench dug to required depth with conduit, warning tape, and sweeps at both ends.

  3. 3

    Terminate

    Service or subpanel landed, grounded, and bonded at the destination structure.

  4. 4

    Inspect & backfill

    Open-trench inspection first, then backfill and restore the grade.

What it costs

Underground work is priced by distance, soil and ledge conditions, and conductor size. New Hampshire ledge is the biggest variable — we walk the route before quoting so the number holds.

Underground Service questions

How deep does underground electrical need to be buried?
Depth depends on the wiring method and voltage — commonly 18 to 24 inches for residential feeders in conduit. We bury to the requirement for your specific install and get an open-trench inspection before backfilling.
Can you run power to a detached barn or garage?
Yes. That is a common job here: a trenched feeder, a subpanel with its own grounding electrode, and circuits for lighting, outlets, and equipment.

Get a quote for this

Send the details and we will follow up during business hours.

So we can send you a copy of your quote request.

We reply during business hours. For urgent electrical problems, call instead.

Available across the Lakes Region

Further reading

Other services

Need an electrician who shows up and does it right?

Call during business hours for a straight answer, or send the details and we will follow up with a written quote.

Franklin, New Hampshire · Mon–Fri, 7:00 am – 5:00 pm

Call 603-707-4293Request a quote