What is knob-and-tube wiring?

Knob-and-tube wiring was installed between the 1880s and the 1940s — the first generation of home electrification. The system lacks proper grounding, and its insulation is brittle and prone to cracking and breaking down, which causes hazards and electrical issues. We recommend replacing it.

Should my knob-and-tube wiring be replaced?

Yes. For most homes that still have it, that is 120-plus years of use. The insulation becomes brittle and breaks down, causing electrical fires and hazardous conditions in your home. Multiphase Electric has 20-plus years in the remodeling industry and hundreds of homes improved. We can replace your old wiring in under a week in most cases, depending on the size of your house.

How long does a panel replacement take?

A panel replacement usually takes 8 to 10 hours, and you should expect to be without power for that duration. We tell you the window before we start so you can plan around the fridge and anyone working from home.

Can you provide a Level 2 EV charger?

Yes. Multiphase Electric LLC can supply any ChargePoint charger for your EV. If you already have a charger you'd like to use, we can install that for you as well.

Whole-home standby generator or portable — which is best for me?

Either way, we can help you make the right decision for your home and your area. Physical space requirements, fuel availability — natural gas versus propane — and cost all drive the decision. We'll do a free assessment of your home or business and provide an estimate.

Can the Wi-Fi signal in my home be improved?

Yes. Most homes run a single Wi-Fi router that can't cover every area. We can supply and install a mesh system, or work with your existing one, to create a wired backhaul — running Ethernet through select areas of the house. A wired-backhaul mesh handles gaming, streaming, and casual browsing all at once, as long as your service provider can support it.

Services | Multiphase Electric

Explore our electrical services

Whole buildings and single circuits, residential and commercial: new builds, remodels and tenant improvements, panels and service upgrades, EV charging, rewiring, lighting, backup power, data cabling, and the diagnostics when something stops working — one licensed Portland metro crew, at it since 2005.

The dark-clad frontage of a car showroom at street level, lit interior and timber-framed entry doors behind full-height glazing

Commercial Electrical Services

Ground-up builds, tenant improvements, and the service upgrades new equipment forces, bid design-build or plan and spec. Power, lighting and controls, data, and EV charging ride together rather than as four subcontractors, which is why the GCs and owners we work for are not refereeing four subs to get one building energized.

Commercial New Construction
Tenant Improvements
Commercial Service Upgrades
Design-Build Electrical
Plan & Spec Bidding
Panel & Switchgear Installation

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Finished kitchen in a new build — dome pendants over a navy island, under-cabinet lighting along the backsplash, and recessed cans in a coffered ceiling

Residential Electrical Services

New builds, remodels, additions, and ADUs, wired end to end by one crew — temp power on the empty lot through the final walkthrough. We price from the drawings rather than an outlet count, hold the slot the framing schedule gives us, and size the panel for the charger or the addition that comes later.

New Home Electrical Wiring
Remodel & Addition Wiring
ADU Electrical Installation
Electrical Rough-In & Trim-Out
Temporary Construction Power
Whole-Home Rewiring

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Wall-mounted EV charger with its cable coiled on a timber-clad garage wall, a white electric SUV parked alongside

EV Charger Installation

A charger is only as good as the service behind it, whether that is one unit in a garage or a row of them in a fleet yard. We start from the capacity you already have — smart load management often gets there without upsizing — then run the dedicated circuit to code and to the manufacturer's spec.

Residential EV Charger Installation
Commercial EV Charger Installation
Level 2 EV Chargers
Dedicated EV Circuits
Electrical Load Calculations
Electrical Service Upgrades

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New meter base and service riser mounted on the stucco exterior of a green Portland house, with the mast run up to the roofline

Panel & Service Upgrades

Chargers, heat pumps, shops, and ADUs all land on a panel that was sized for a different decade. We measure what the building actually draws, take the utility and plan-review side off your hands, and size the new service for whatever comes after this project.

Electrical Panel Upgrades
SPAN Smart Panel Installation
Electrical Service Upgrades
Electrical Load Calculations
Electrical Service Design
Utility Coordination

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Service equipment across an exterior wall — meter, disconnects, load center and two Kohler transfer switches joined by conduit

Electrical Diagnostics & Repair

Breakers that trip, lights that flicker, outlets that died, a building with no power at all. We trace the fault to its source rather than swapping parts until something works, quote the repair before we do it, and leave the circuit labeled. Emergency service is available when the power is out.

Electrical Troubleshooting
Emergency Electrical Repair
Power Outage Diagnostics
Circuit Breaker Repair & Replacement
Outlet & Switch Repair
Flickering & Dimming Light Diagnosis

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Rewired kitchen in a white-cabinet remodel — pendants over the island, under-cabinet lighting, recessed cans, and new receptacles along the backsplash

Knob & Tube Rewiring

Original knob-and-tube was never designed for a modern household, and many insurers are now reluctant to cover a home that still has it active. We have spent years in older Portland homes, so the old wiring is replaced or decommissioned with as little disruption to finished spaces as possible.

Knob-and-Tube Wiring Replacement
Knob-and-Tube Decommissioning
Whole-Home Rewiring
Partial Home Rewiring
Electrical System Modernization
Branch Circuit Replacement

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Generac standby generator on a concrete pad beside a board-and-batten farmhouse, fuel line run into the wall behind it

Generators & Backup Power

Wind, ice, and a limb across a line take the power out somewhere in the metro every winter. Standby generators, portable-generator inlets, and battery backup — whole home, partial, or only the circuits you cannot lose — sized against a real load calculation and wired to a transfer switch that handles the changeover for you.

Permanent Standby Generator Installation
Portable Generator Connections
Battery Backup Systems
Automatic Transfer Switch Installation
Manual Transfer Switch Installation
Whole Home Backup Power

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An appliance showroom lit by fluted pendants over a stone island, with track lighting and recessed downlights across a black open ceiling

Lighting & Controls Design

Most of what makes a room work is decided before a fixture is bought: where the light has to land, what dims with what, which scene anyone actually presses. Layout, fixtures, and Lutron RadioRA 3 control sit on one contract, and the Energy Trust rebate paperwork is ours to file, so the incentive is in the number you approve.

Lighting Design
Lighting Layout Development
Lighting Controls Design
Smart Lighting Systems
Lutron RadioRA 3 Systems
Automated Lighting Scenes

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Three-story mixed-use building under construction from the air, rooftop equipment stubbed out and a Multiphase Electric van at the curb

Data & Low Voltage Systems

Structured cabling, fiber, cameras, and network gear, installed by the same electricians running the power — one permit and one schedule instead of two trades negotiating over a pathway. New build or occupied retrofit, every drop is terminated, tested, and labeled at both ends before the rack is handed over.

Structured Cabling
Fiber Optic Installation & Terminations
Security Camera Installation
Network Infrastructure
Data Drops & Cat6 Cabling
Building-to-Building Fiber

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Done right, the first time.

Local Portland Team

Serving the Portland metro since 2005. The person you call is part of the same local team that plans and completes your electrical work.

20+ Years of Experience

Two decades of residential and commercial electrical work — from service upgrades and remodels to backup power and EV charging.

Residential + Commercial

Electrical services for homes, businesses, remodels, additions, and new construction throughout the Portland metro area.

Licensed Electrical Work

Experienced electricians handle every project to current electrical codes and safety standards, with the right permits and inspections when required.

Clear Upfront Pricing

You get a clear estimate before work begins, so you understand the scope, materials, and cost before our team gets started.

Reliable Power Solutions

From panel upgrades and generators to EV chargers and everyday electrical repairs, we build systems designed for safe, dependable power.

proudly serving the Portland metro

Multiphase Electric covers the whole metro — from Hillsboro and Newberg out to Corbett, and south through Oregon City to Molalla. Licensed in Oregon, with emergency service anywhere on this map.

Pick a city to see who covers it. Not on the list? Get in touch — we go further for panel and emergency work.