Heated floors in three rooms.
Installed the circuits and thermostats for heated floors in the powder room, laundry room, and kitchen, set up as two zones.
Tech: Andrew · Apr 2026
Whole-Home Wiring in Mercer Island, WA
A full rewire replaces aging or unsafe wiring with modern, code-compliant circuits throughout the home — eliminating fire risk, supporting today's loads, and bringing every outlet up to standard.
Whole-home rewires on Mercer Island route around the island's terrain — a shoreline Point home and a ridge-top house near Rotary Park rarely have the same access for running new circuits.
01 · THE PROBLEM
Symptoms we see every week in Mercer Island
- Home has knob-and-tube, aluminum, or cloth-insulated wiring
- Flickering lights or warm, discolored outlets
- Breakers trip frequently from overloaded circuits
- Adding modern loads (EV, heat pump, ADU) the old wiring can't support
02 · THE PRECISION SOLUTION
Spec'd to your Mercer Island home
We size every system to your actual demand — not a one-size guess. Here's what a typical whole-home wiring includes:
| Material | Copper (ROMEX®) |
|---|---|
| Circuits | Dedicated per room |
| Protection | AFCI/GFCI standard |
| Permit | Pulled & signed off |
Local notes
Whole-Home Wiring in Mercer Island: what's different here
The island's mix of older lakefront homes and large remodels means panels range from original 100-amp service to newer 400-amp service. Older Mercer Island homes may have knob-and-tube, aluminum or ungrounded wiring. We rewire room by room, fish wires through walls where possible, and add AFCI and GFCI protection.
Permits and inspections
Rewiring needs an electrical permit, with inspections before the walls are closed. Mercer Island runs its own electrical permit and inspection program, so permits for this work go through the City of Mercer Island rather than Washington L&I (L&I list of cities). We pull the permit and meet the inspector.
Utilities
Electric service in Mercer Island is provided by PSE. For panel, meter and service work we schedule the disconnect and reconnect with the utility for you.
Where we work in Mercer Island
Our job records show more than 80 completed jobs for Mercer Island customers across ZIP codes 98040. That includes 4 whole-home wiring jobs, most recently in 2026. We take whole-home wiring calls in East Seattle, the North End, the South End, First Hill and the rest of Mercer Island.
Recent Mercer Island jobs
Real calls from our Mercer Island job records
03 · THE OutToday GUARANTEE
Work we stand behind
25-year wiring warranty, 5-year workmanship, and permit closure documentation provided.
Book this serviceReady to book?
Get a same-day quote from a real technician in Mercer Island.
Whole-Home Wiring in Mercer Island FAQs
Straight answers for homeowners in Mercer Island.
Who issues the permit for whole-home wiring in Mercer Island?
Mercer Island runs its own electrical permit and inspection program, so permits for this work go through the City of Mercer Island rather than Washington L&I. For whole-home wiring, we apply for the permit, book the inspection, meet the inspector on site, and give you the final sign-off for your records.
Does my older Mercer Island home need to be rewired?
Not always. If you have knob-and-tube, aluminum branch wiring, warm outlets or frequent tripping, have it inspected. We give a written price for repair or rewire.
Which Mercer Island neighborhoods do you cover?
Our job records show more than 80 completed jobs for Mercer Island customers across ZIP codes 98040. That includes 4 whole-home wiring jobs, most recently in 2026. We take whole-home wiring calls in East Seattle, the North End, the South End, First Hill and the rest of Mercer Island. Call (425) 615-5000 for same-day service.
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