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Seattle · Eastside · Marysville to Tacoma206-251-1492
TRUE WIREELECTRIC

Detached Structures, Garages & Trenching

Shed lighting and convenience outlets

Provide a small electrical supply, one or two lights and a few receptacles.

What this service involves

Provide a small electrical supply, one or two lights and a few receptacles.

Typical scope and limits: Open framing and approximately 50 ft route. Trench and substantial heating loads excluded.

Who usually needs it

Homeowners powering garages, sheds, workshops, greenhouses or outdoor areas.

Estimated pricing

$1,620–$3,420 per 100–200 sq ft shed

Priced per 100–200 sq ft shed. This is a planning range, not a quote.

Project ranges include labor and standard installation materials unless a listing says otherwise. Hourly rates are labor only, and equipment you supply (such as chargers, fixtures or fans) is not included. Permit fees and sales tax are additional. Estimates are free, including on-site visits.

Electrical work may require openings in walls or ceilings. Drywall patching, texture, and painting are not included and must be arranged with others.

What an electrician evaluates first

  • Distance and route, including trenching
  • Loads at the structure
  • Feeder or branch circuit approach
  • Grounding and disconnect needs for separate buildings

Typical work sequence

  1. Plan the route and loads
  2. Trench or route conduit
  3. Install feeder or circuits and equipment
  4. Inspection before backfill where required
  5. Final connections

Access and disruption

Trenching disturbs lawn and landscaping; restoration beyond backfill is arranged with others. Utility locates are required before digging.

Permits and inspection

New circuits, equipment changes and most wiring alterations normally need an electrical permit and inspection. In Washington, Labor & Industries issues electrical permits except in cities that run their own electrical program, so the permitting authority depends on the property address rather than the mailing city. True confirms the correct authority before work starts. Permit fees are additional to the estimate.

Helpful, safe photos

The path between the house and the structure, and the closed main panel. Only photograph what is safely visible — never remove electrical covers.

Related True Wire work

Photos from related projects; they are not necessarily this exact service.

Exterior metal conduit secured to strut with two conduit clamps
Exterior conduit · the details matter
Trenching in progress between a house and a detached shed for a subpanel roughly 70 feet away
Power for a detached shed · 70-foot trench

Questions

How deep does a trench need to be?

It depends on the wiring method and location. True plans the depth for the specific route.

Can an extension cord power my shed?

Not as a permanent solution. A permanent circuit or feeder is the safe approach.

Not sure what you need?

Send a photo. Ask a certified electrician.

Not sure what you need? Send a photo and tell True what’s going on or what you’d like to change. Get help understanding your options and the next step.

Tell True about your project

What happens next

Tell us what you’re working on. True will review your request and respond by your preferred contact method. Together, we’ll determine whether the next step is advice based on your photos, a visit, or an estimate. Estimates are free, including on-site visits.

Have a question or a project in mind? Send a few details and choose how you’d like to hear back.

How would you like to hear back? *
Photos (optional, up to 6)

Photograph only what’s visible. Never remove electrical covers or touch exposed wiring for a photo. JPG, PNG, WEBP or HEIC, up to 8 MB each.

Electrical work may require openings in walls or ceilings. Drywall patching, texture, and painting are not included and must be arranged with others.

No account, budget, or street address needed.

Related detached structures, garages & trenching