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Best generator install pros near Cornelius, OR

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Top-Rated Generator install pros in Cornelius - Updated Nov 2026

Avatar for Brown Brothers Electric and Remodel
Brown Brothers Electric and Remodel
5.0(
35
)
Fixed Generator - Install

Serving Cornelius, OR and surrounding areas

Approved

In business since 1998

Credit card accepted

Offers commercial services

"Tom did a fabulous job with the whole house plug installation for my back up generator. He was quick and efficient and cleaned up well after the work. He explained how to use the plug and manual interlock and made sure everything worked before leaving. Quality job on all fronts. Pricing was fair and he was able to fit me in on short notice due to another job rescheduling. I will definitely contact him again should the need arise."
Panel install
Response time11 hrs
Response rate96%
Recommended by97%of homeowners
CBW Electric, LLC
5.0(
132
)
Fixed Generator - Install

Serving Cornelius, OR and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

We offer over 20 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

6 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for ATR Electric
ATR Electric
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair

Serving Cornelius, OR and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

With over 7 years of experience ATR ELECTRIC is your trusted choice for all of your electric needs. Quality is the foundation of every project. As a licensed, independent electrical contractor serving Portland and the surrounding communities, every job is approached with one goal in mind: getting it done right the first time. No shortcuts, no rushed work, and no unnecessary callbacks. Just dependable craftsmanship built to last. Give us a call today for a free estimate!

Kitchen and bath remodel
Kitchen and bath remodel
13 neighbors recently requested a quote
Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.9(
19
)
Fixed Generator - InstallPortable Generator - Install

Serving Cornelius, OR and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1974

Free estimates

Credit card accepted

"Ideal experience with this company! They contacted me and came out to make the bid the same day I contacted them. They were super flexible and worked to accommodate my schedule. I needed to wait until my EV charger arrived from the manufacturer. They came out the day after it arrived, installed the unit in under two hours, and it's been working flawlessly ever since. Don't let their name fool you--John's Waterproofing is expert at electrical work! I will use them again."
Water Puddle
Water Stains on the Walls
Full Perimeter Drainage and wall system
Room for The Home Appliances
Sump Pump and Battery Back up

+36

Response time1 day
Response rate85%
105 neighbors recently requested a quote
Avatar for One Stop Electric LLC
One Stop Electric LLC
5.0(
37
)
Portable Generator - InstallFixed Generator - InstallGenerator - Install - For Business

Serving Cornelius, OR and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"As we wanted a ev charger installed, they went out of their way to get us the correct one. They were prompt in installation and courteous in all interactions, fair and reasonable pricing. Would use again for electrical needs."
Kitchen Remodel
Response time10 mins
Response rate100%
4 neighbors recently requested a quote
Avatar for Safety Home Services
Safety Home Services
5.0(
17
)
Fixed Generator - RepairGenerator - InstallPortable Generator - Repair

Serving Cornelius, OR and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"did great work, installed all fixtures and fixed my outlets in the house that stop working as well!! very professional, friendly, and 100% would recommend to friends and family. thank you jarrod!!!!!!"
Our great service team at Safety Home Services. Excited to serve you!
We do the most simple to the most complex residential services.  We are excited to serve you!
Look for our trucks out there on their way to serve our customers!
We are excited to serve your electrical needs, whether small or big!
Our techs are all qualified and certified electricians.

+4

4 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for 3 Mountains Plumbing
3 Mountains Plumbing
4.2(
653
)
Portable Generator - RepairFixed Generator - RepairGenerator - Repair - For Business

Serving Cornelius, OR and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"The whole experience with 3 Mountains Plumbing was outstanding from Nicole at the office to Jon Marc and Peter, the plumbers. They originally scheduled me for an appointment 5 days out, but Nicole watched appointments carefully and moved my appointment to the same day I called. Jon Marc, the plumber, was very knowledgeable and professional. He gave me different options, which allowed me to decide what worked best for me. He even gave me a teacher discount. After installing my water heater at 8:00 p.m. at night, he discovered a manufacturing problem with the water heater. He called another plumber, Peter. Peter was going off shift and was at the office, but got another water heater and brought it to my house so Jon Marc could install it! I think other plumbers would have said that they needed to come back the next day, but Jon Marc stayed until 10:00 p.m. installing the water heater. I will never use another plumbing company because 3 Mountains is the best! Nicole, Peter and Jon Marc... Thank you!"
The 3MP Team (Circa 2017)
Bill Kerrigan
Alex Grabbing a Photo
Rolling Through Lake Oswego
Random Patch Photo

+103

Response time1 day
341 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Connections Electric Group Inc.
Connections Electric Group Inc.
5.0(
5
)
Generator - Install - For BusinessGenerator - Repair - For BusinessPortable Generator - Install+1 more

Serving Cornelius, OR and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

Since 1990, Connections Electric has been the trusted name for electrical services in Salem, Oregon. As a leading electrical contractor, they specialize in a full spectrum of solutions, catering to the unique needs of residential, commercial, and industrial clients. From routine maintenance and electrical repairs to complex new construction wiring and energy-efficient upgrades, their experienced team is committed to delivering reliable, high-quality results. Connections Electric ensures every project, including low-voltage systems and emergency repairs, is handled with meticulous attention to detail and a dedication to customer satisfaction. "We harness the power of the Gods and make it work for you!

3 neighbors recently requested a quote
Avatar for CBW Electric, LLC
CBW Electric, LLC
5.0(
131
)
Fixed Generator - Install

Serving Cornelius, OR and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"We needed a 240V (level 2) EV charger installed in our garage. Our contractor friend highly recommended Charles. Charles looked at our current electrical panel which is almost 40 years old and had no space to add new circuits. He recommended we replace the panel with a larger one and promptly provided an estimate. We also asked Charles to install a generator inlet connection and an interlock switch for the panel so that the EV battery can be used to provide backup power in case of a power outage. Once we approved the project, Charles gave us a time and duration and he got the job done on schedule. He came back again to rearrange some circuits in the panel so that the EV battery can provide power to the important functions in the house such as kitchen, refrigerator, furnace, den, etc. Overall, we are very pleased with the work done by Charles and we have no hesitation in recommending him."
90's kitchen
can lights,under cabinet lights
subway tile backsplash
great stove
bookcase cabinet for cookbooks

+27

Response time1 day
Response rate99%
Recommended by88%of homeowners
Showing 1-10 of 28
Generator Install FAQs, answered by experts

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

The Cornelius, OR homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.