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4.5

(19 reviews)

Top-rated generator install pros.

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Verified Reviews for Generator Install pros in Sumner, WA

*The Angi rating for Generator Install companies in Sumner, 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 Sumner, 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 March 16, 2026

Find Generator install pros in Sumner

Avatar for Skipper and Sons Electric, LLC
Skipper and Sons Electric, LLC
4.8(
53
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2021

Emergency services offered

Warranties offered

"I hired Skipper and Sons to install my car charger. They did a great job for a good price."
panel
electrical work
lighting install
lighting install
lighting install

+141

Response time6 hrs
Response rate90%
113 neighbors recently requested a quote
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Avatar for First Choice Electrical, LLC
First Choice Electrical, LLC
4.6(
156
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"The Electrician installed a tesla wall charger. He was on time, did an outstanding job, and exceeded my expectations."
Jeff measuring for panel layout
Lead Installer Jordan Prepping layout with Jeff
Roof-top picture
Solar with Energy Storage
Solar with Energy Storage

+19

Response time2 days
Response rate96%
77 neighbors recently requested a quote
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Custom Electrical Contractors, Inc.
4.7(
40
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"We don't know how the end of the job and the price will turn out as we had a few extra's to do. They guys were very professional, courteous, and took care not to make a mess even wearing shoe booties each time they left and entered the house. We have had some inspection issues but that was not their fault. Overall I would highly recommend this company."
Response time3 days
Recommended by100%of homeowners
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Avatar for The Juice Company, Inc.
The Juice Company, Inc.
4.3(
145
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"They came, were super friendly, detected the problem and fixed it all within 30 minutes Made time for me in such a short notice!"
Hmart
Resturant in Hmart
Grocery
Hmart
Hamrt

+2

Response time1 day
Recommended by76%of homeowners
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Avatar for Swiftwater Electric & Solar, Inc.
Swiftwater Electric & Solar, Inc.
5.0(
6
)

Serving Sumner, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Warranties offered

"David was very professional and very knowledgeable regarding all aspects of installing our solar system. Saved us a lot of money and was a pleasure to work with."
Pre upgrade
New panel
New panel interior
Additional Photos
Additional Photos

+41

Response time2 days
17 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Crimson Electric, LLC
Crimson Electric, LLC
4.9(
29
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"Crimson Electric was superb in every way. They went out of their way to really make this process painless. I would happily recommend Crimson Electric to anyone who needed electric work done."
Response time50 mins
8 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Copper Creek Electric LLC
Copper Creek Electric LLC
5.0(
5
)

Serving Sumner, WA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

Jagg Services proudly serves Western Washington with top-quality HVAC, electrical, and general contracting services. Our expert team ensures your home or business stays comfortable, efficient, and safe. We specialize in heating and air conditioning systems, electrical installations, and reliable home generators.\n

Project Photos
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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. 

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.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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 Sumner, 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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