Top-rated generator install pros.

Get matched with top generator install pros in Des Moines, WA

Enter your zip and get matched with up to 5 pros

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

Select your specific project to find the pro for you.

TRUSTED BY DES MOINES, WA HOMEOWNERS

  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Find Generator install pros in Des Moines

Avatar for SeaTown Electric Heating and Air
SeaTown Electric Heating and Air
4.7(
1,638
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Great communication throughout the entire process, informative friendly people from the office to the field. All safety precautions were taken during both the in home estimate and final installation of the water heater which was completed in under 4 hours. SeaTown are my new best friends!"
Seattle's Rewire Specialists
Generator
Tesla Chargers
Knob and Tube Removal
Ductless Install

+26

Response time1 day
12 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for The Juice Company, Inc.
The Juice Company, Inc.
4.3(
145
)
Generator - Install - For Business

Serving Des Moines, WA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"From estimate, to selection of The Juice Company, to scheduling, they made the entire process painless. Had 2 15 amp "peanut" breakers installed to replace an existing breaker and establish a new circuit, and 2 new outlets installed. We also had low voltage network cable roughed in so I could terminate it later, and everything was done not only properly, but quickly. I would definitely recommend them to anyone needing electrical work done in the South Sound region."
Hmart
Resturant in Hmart
Grocery
Hmart
Hamrt

+2

Response time1 day
Recommended by76%of homeowners
Avatar for Pacific Home Electric, LLC
Pacific Home Electric, LLC
4.9(
38
)
Fixed Generator - InstallPortable Generator - Install

Serving Des Moines, WA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Three electricians worked on the job & completed it in 3 1/2 hours! I was expecting it to be done in 5-6 hours. They even hooked their generator up to my big freezer! The City inspector just checked their work, said it was a job well done! I would definitely hire them again."
Response time1 day
6 neighbors recently requested a quote
Recommended by84%of homeowners
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 VoltLab Electric
VoltLab Electric
4.7(
14
)
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
Avatar for Jagg Services
Jagg Services
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Des Moines, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

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
16 neighbors recently requested a quote
Avatar for Black Hills, Inc.
Black Hills, Inc.
4.5(
606
)
Fixed Generator - Install

Serving Des Moines, WA and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"All staff were professional and well qualified. Friendly and on time both install dates. Technicians and electricians are well qualified and very knowledgeable in thier fields. All permits are handled by Black Hills. No surprise cost issues. Paid what was quoted. Thanks Black Hills for a very pleasant install."
Furnace
Heat Pump
Heat Pump
Furnace
Mini Split

+12

Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
...
Showing 1-10 of 102
Generator Install questions, 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.

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.

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.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.