Top-rated generator install pros.

Get matched with top generator install pros in Valley, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Valley, WA?

Select your specific project to find the pro for you.

Find Generator install pros in Valley

Avatar for THUNDERBIRD POWER LLC
THUNDERBIRD POWER LLC
5.0(
9
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Valley, WA and surrounding areas

In business since 2025

Small jobs welcome

Credit card accepted

"Thomas at Thunderbird Power is fantastic. He KNOWS his trade (a 3rd generation electrician)! Had 2 electricians last year try to fix some broken outlets, after 1.5 hours couldn't figure it out. Another electrician troubleshot it recently and his diagnostic tests ended up NOT being the issue. Thomas had them fixed in 30 minutes and didn't have separate charges for troubleshooting ontop of fixing, just took care of it. He was WAY cheaper than all the other electricians who quoted me in the area for that and replacing all our light fixtures + fixing other issues; I spoke to 6 different electrians in depth about our projects (8 including previous guys). He was the ONLY electrician who did not make a big deal about fans, nor talked small projects into huge ones and needing a second person to help him with all the work, etc. But he did the work in the same amount of time, alone. He was very professional, timely, detail-oriented, neat, and personable (dogs ADORED him). Will hire again!!!"
Response time40 mins
Response rate94%
Recommended by11%of homeowners
Avatar for Gaffaney Electric, Inc.
Gaffaney Electric, Inc.
4.9(
7
)
Fixed Generator - InstallFixed Generator - Repair

Serving Valley, WA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

We work with a multitude of local general contractors on new and remodel construction. Gaffaney Electric prides ourself on making sure your house is lighted and wired with pristine detail and quality. We also want to make sure your house is safe for you and your family. We follow federal, state, and local electrical guidelines to ensure the job we do keeps you safe. Not looking to add on - no worries - we do service repairs as well. There is no job too small.

GENERATOR INSTALL
Custom Lighting
GENERATOR INSTALL
GENERATOR INSTALL
SERVICE CLEAN UP

+9

Response time1 day
Response rate95%
Recommended by100%of homeowners
Avatar for Evergreen Electric PNW Inc
Evergreen Electric PNW Inc
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Valley, WA and surrounding areas

In business since 2021

Free estimates

Emergency services offered

At Evergreen Electric, we’re committed to providing safe, reliable, and high-quality electrical services for homeowners and businesses. Our mission is simple: deliver expert workmanship with honesty, transparency, and care. Whether it’s a small repair or a major upgrade, we approach every job with precision, professionalism, and respect for your home.\n

Avatar for Hurst Electric LLC
Hurst Electric LLC
5.0(
5
)
Portable Generator - InstallPortable Generator - Repair

Serving Valley, WA and surrounding areas

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job\n

Response time4 hrs
Avatar for ACI Northwest Inc
ACI Northwest Inc
4.0(
35
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Valley, WA and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"

Job was well-planned by the estimator and the guys showed up well-informed as to the layout and modifications that we needed. Estimate was competitive with other companies that we approached. Work was performed efficiently and only delay was a result of a part on the system which was incorrectly positioned by original installer and he to be re-ordered. Jim & Rob were punctual, professional and hard-working and didn't inconvenience us at all.


"
Recommended by78%of homeowners
Avatar for Evergreen Electric, LLC
Evergreen Electric, LLC
5.0(
2
)
Generator - Install - For Business

Serving Valley, WA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

With 20 years of experience in the electrical industry, Evergreen Electric, LLC are the experts you need to handle all your electrical needs. We do everything from panel upgrades to service calls. We will treat your home or business as we would our own. Give us a call today, we look forward to working with you!

New construction home
New construction home
New construction home
New construction home
Response time30 mins
Recommended by100%of homeowners
Showing 1-10 of 14
Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

The Valley, WA homeowners’ guide to generator installs

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