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Verified Reviews for Generator Install pros in Dayton, WA

*The Angi rating for Generator Install companies in Dayton, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Dayton, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on November 25, 2025

Find Generator install pros in Dayton

Avatar for Gaffaney Electric, Inc.
Gaffaney Electric, Inc.
4.9(
7
)
Fixed Generator - InstallFixed Generator - Repair

Serving Dayton, WA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The work they did was outstanding. We had some confusion about dates and times, but it all worked out. Awesome workers--very conscientious."
GENERATOR INSTALL
Custom Lighting
GENERATOR INSTALL
GENERATOR INSTALL
SERVICE CLEAN UP

+9

Response time1 day
Response rate95%
Recommended by100%of homeowners
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Avatar for JBC Group Solutions Inc
JBC Group Solutions Inc
4.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dayton, WA and surrounding areas

In business since 2007

Emergency services offered

"They did a real good job. They were real professional. We can now open the garage door from the inside of the house and now it is so smooth that we have to check to see if we hit the button to open it or close it.  Before we used to know when it was opening or closing because it used to make a noise. It helps when you move to a city where you are new. "
Custom Staircases
Custom Exterior Restoration
Custom Bathrooms
Recommended by75%of homeowners
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Generator Install questions, answered by experts

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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. 

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. 

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The Dayton, WA homeowners’ guide to generator installs

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

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