Generator installation in Gresham, OR

When wind or ice takes down power in east Multnomah County, a portable generator in the garage is only useful if your house can accept it safely. We wire Gresham homes for backup power, from a simple inlet to a full standby system.

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MBE Certified · ESB Certified · Licensed, Bonded & Insured

Oregon CCB #2271164.7★ · 69 Google reviews

MBE Certified

ESB Certified

Licensed, Bonded & InsuredOregon CCB #227116

4.7★ · 69 Google reviews

Every big windstorm, the same scene repeats across Gresham: garages with portable generators in them, and no safe way to get that power into the house. Extension cords through a window will run a refrigerator, but they cannot run a furnace fan or anything hardwired, and backfeeding a panel without transfer equipment is genuinely dangerous, both for your home and for the line crews working to bring the grid back. Generator installation exists to close exactly that gap.

Gresham's housing shapes the work. Much of the city went up in the boom decades between the 1960s and the 1990s, which means original 100- to 125-amp panels are still common here, and what your panel can accept decides which backup path fits.

The interlock, the budget workhorse

For most boom-era Gresham homes, the smart first rung is a panel inlet with an interlock kit: one outdoor connection, one mechanical slide on the panel that makes it impossible to feed the house and the grid at the same time, and your portable generator safely runs the circuits you choose. A manual transfer switch is the step up, giving a dedicated set of essential circuits their own small panel. The electrical side of either setup, hardware, wiring, and permit, runs $800 to $2,500. The portable generator itself is your purchase, typically $500 to $2,500.

Standby power on a boom-era panel

A whole-home standby generator with an automatic transfer switch is the no-hands option: it starts itself when the power drops, whether you are home or not, and runs $6,000 to $15,000 or more installed. On Gresham's older stock there is one honest caveat. Transfer equipment lands on your service panel, and an original 100-amp panel near the end of its life may need upgrading before a standby system goes in. If the panel is due anyway, doing both in one project beats opening the service twice; our Gresham panel upgrade page covers that side, and the generator cost guide breaks down the full numbers.

Gresham permits, handled end to end

Transfer switches and standby installs require an Oregon electrical permit and inspection, and Gresham is one of the few Oregon cities that runs its own electrical permit and inspection program in-house. Under Oregon law the licensed contractor pulls the permit, so we handle that end to end and schedule the inspection so a generator project does not stall between steps.

Sizing, the gas connection, and your quote

Standby units need a fuel supply, usually natural gas or propane. We do the electrical half, the automatic transfer switch, the wiring and panel work, and the permit, and we coordinate the gas connection with the right trade. We install all major brands and size the unit to what you actually need backed up rather than defaulting to the biggest model on the truck.

Smiley Electric is licensed, bonded, and insured, Oregon CCB #227116, owned by Master Electrician Joshua Smiley, more than 20 years in the trade. Ballpark quotes are free by phone or from a photo of your panel, and the on-site assessment for a generator project is free when you want the firm number. When a storm has already done its damage, our emergency line answers 24/7.

Gresham generator questions, answered

Can I backfeed my Gresham house from a portable generator during an outage?

No, and it is the most dangerous shortcut in this whole subject. Feeding a panel through a dryer outlet can energize the utility lines outside your house and put a line crew at risk, and it violates code. The safe version is exactly what an inlet with an interlock or a transfer switch provides, and the electrical work for that runs $800 to $2,500 including the permit.

Does my older Gresham panel need replacing before a standby generator?

Sometimes. Most of Gresham's housing went up between the 1960s and 1990s, and original 100- to 125-amp panels from that era can be near the end of their life or too tight for transfer equipment. We assess the panel first, and when an upgrade is genuinely needed we fold it into the same project, which costs less than opening the service twice.

Who handles the permit for generator work in Gresham?

We do, as the licensed contractor. Transfer switches and standby installs require an Oregon electrical permit and inspection, and Gresham is one of the few Oregon cities that runs its own electrical permit and inspection program in-house. We pull it, do the work to code, and schedule the inspection so the project keeps moving.

Do you install the gas line for a standby generator?

No, and no electrician should. A standby unit needs a natural gas or propane connection, and that work belongs to the right trade. We handle the full electrical scope, the automatic transfer switch, wiring, panel work, and permit, and we coordinate the gas connection so the project lands as one job instead of two you have to manage.

Tell us what needs fixing or what you’re planning.

Call our office or request a callback to discuss the work and arrange the next step. For planned projects, start with a free ballpark by phone or photo. For troubleshooting and repairs, ask about an Electrical Service Appointment.

Call (503) 484-7556Mon–Sat, 7am–5pm