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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

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.

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.

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. 

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

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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