Home Rewiring · Portland, OR
Home Rewiring in Portland, OR
Portland has a large stock of early-1900s homes with knob-and-tube wiring, and it usually comes up before an insulation project or a home sale. Electricians commonly recommend replacing active knob-and-tube before walls and attics are insulated, and insurers may ask about it.
- Call now to check electrician availability in your area
- Independent, licensed electricians
- Serving Sellwood, St. Johns, Hawthorne and more
What's different about home rewiring in Portland
Rewiring an older Portland home typically involves fishing new cable through plaster walls with selective openings. Oregon requires licensed electrical contractors, and permits come from the city's permitting office. Energy-efficiency programs that pay for insulation often require knob-and-tube to be assessed first. A documented rewire can also help with insurance and resale.
Heat-pump conversions and EV chargers often need service upgrades, and insulation projects require knob-and-tube to be assessed first.
Weather and the utility in Portland
Portland has mild, wet winters with occasional ice storms, including the February 2021 ice storm and the January 2024 storm, which left many homes without power for days. Summers have become hotter, with the June 2021 heat wave setting records, and many homes that never had air conditioning are adding heat pumps. Wildfire smoke in late summer also pushes people to run air purifiers and cooling equipment longer. PGE serves most of Portland and some nearby areas are served by Pacific Power, and each has its own process for service upgrades, solar interconnection and reconnection after storm damage.
- Permits in Portland
- Electrical permits in Portland are issued by the city's permitting office; Oregon requires licensed electrical contractors.
- Electric utility
- PGE (some areas: Pacific Power)
- Where we connect you
- 58 ZIP codes in Portland, including Sellwood, St. Johns, Hawthorne, Alberta, Montavilla, Laurelhurst
Signs it's time to call
- Knob-and-tube or cloth-insulated wiring
- Two-prong outlets throughout
- Aluminum branch wiring
- Frequent tripping or warm devices
- An insurer or home inspector flagged the wiring
How the job usually goes
1. Assessment
Wiring type, condition and circuit layout are documented.
2. Plan and permit
Circuits are prioritized and the work is permitted.
3. Rewire
New cable is fished through walls and ceilings with minimal openings.
4. Inspection and patching
Rough-in and final inspections, then wall openings are closed.
Full details on home rewiring, including what you can safely check yourself.
What moves the price in Portland
Electricians set their own prices. Local permit fees, utility coordination and the age of the home all play a part, along with:
- Home size and number of circuits
- Access through attic, basement or crawl space
- Plaster versus drywall
- Whether the panel is upgraded at the same time
- Patching and painting scope
Stop and call an electrician if
- ✕ Do not cover knob-and-tube with insulation
- ✕ Do not splice new wire onto old wiring
Home Rewiring in Portland: questions
Do I need a permit for home rewiring in Portland?
In most cases, yes. Electrical permits in Portland are issued by the city's permitting office; Oregon requires licensed electrical contractors. The electrician normally pulls the permit and arranges the inspection.
Do I have to rewire the whole house at once?
No. Many homeowners rewire in phases, starting with kitchens, baths and bedrooms.
Is aluminum wiring dangerous?
Aluminum branch wiring can overheat at connections. Approved repairs (such as rated connectors) or replacement reduce the risk; an electrician can advise which fits.
What electrical issues are common in Portland homes?
Electricians in Portland most often see: knob-and-tube in early-1900s homes; ice storm outages and generator hookups; panel upgrades for heat pumps and EVs.
More electrical help in Portland
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Need home rewiring in Portland?
Call now and we connect you with a licensed electrician who serves your ZIP code.