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  • Verified reviews icon11
    Verified generator installs reviews

Top-Rated Generator install pros in Des Moines - Updated Nov 2026

Avatar for Skipper and Sons Electric, LLC
Skipper and Sons Electric, LLC
4.8(
55
)
Portable Generator - InstallFixed Generator - Repair

Serving Des Moines, WA and surrounding areas

Approved

In business since 2021

Emergency services offered

Warranties offered

"Skipper & Sons installed a entryway chandelier in high ceiling 18' tall. They installed a new light and switch in an unfinished closet, and 3 new canned lights and new switch in my master bedroom. They also fixed the wiring in an existing switch in the downstairs hallway. They did professional electrical work."
panel
electrical work
lighting install
lighting install
lighting install

+166

Response time6 hrs
Response rate91%
110 neighbors recently requested a quote
Avatar for In-House Electrical Services, Inc.
In-House Electrical Services, Inc.
4.5(
1,757
)
Portable Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2002

Emergency services offered

Warranties offered

"We had In-House Electrical replace/upgrade our main panel as well as setup a generator hook-up and A/C outlet outside. Adam and Avery were phenomenal - they were thorough, kept in constant communication with me during the project to ensure things were being done as I liked, and left the place looking better than when they showed up. They'll be my first call in the future for any electrical work I need done."
Response time40 mins
Response rate100%
8 neighbors recently requested a quote
Avatar for Skyline Electrical Services LLC
Skyline Electrical Services LLC
4.8(
52
)
Fixed Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"Nick installed an EV charger for us. Nick did quality work and was very friendly. Even after the installation was complete, he stuck around to ensure everything was working as expected. It initially wasn t, but that turned out to be related to an issue with how the mobile app on my phone was set up, and not related to any work he did. He stuck around while on the phone with tech support and had to cancel a couple of appointments later that evening to ensure my project was complete, and remained patient throughout. Great customer service! I would absolutely recommend this company, and Nick in particular."
 Electric Vehicle
 Electric Vehicle
 Electrical Panels
 Electrical Panels
 Electrical Panels

+11

Response time3 days
Response rate100%
30 neighbors recently requested a quote
Avatar for Skyline Electrical Services LLC
Skyline Electrical Services LLC
4.7(
47
)
Fixed Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

Thank you for considering hiring us for your project! At Skyline Electrical Services LLC we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project.\nWe are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family!\nAs the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review.\nWe look forward to earning your business, so please ask us for references!

1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for VoltLab Electric
VoltLab Electric
4.8(
17
)
Fixed Generator - InstallPortable Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2025

Credit card accepted

"I called Voltlab and Evan Cade to advise me on what to do about some ungrounded outlets in my house. After helpful discussion during a complimentary inspection of the rest of my electrical system it was clear I needed serious attention to more than a few outlets. What I thought would be a simple service call turned into a service upgrade and partial rewire. Though I was surprised with the amount of work required to bring the house up to code, Evan's obvious knowledge and straightforward approach to the work made me comfortable trusting Voltlab and Evan with the project. About 9 days of work was spread over a month from first visit to last inspection and all went smoothly. Evan coordinated scheduling with city officials and inspectors and kept me informed at all times. His crew of electricians did a great job and respected me, my home and property. They are a talented and very experienced team. Evan is rightfully proud of the company he is building. Highly recommended."
Panel change
Garage lighting update
Garage lighting update
Garage lighting update
Garage lighting update

+1

3 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

The Des Moines, WA homeowners’ guide to generator installs

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