Top-rated generator install pros.

Get matched with top generator install pros in Hermosa, SD

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Hermosa, SD?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Hermosa, SD

*The Angi rating for Generator Install companies in Hermosa, SD 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 Hermosa, SD 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 June 03, 2025

Find Generator install pros in Hermosa

Avatar for Mr. Electric of the Black Hills
Mr. Electric of the Black Hills
4.8(
46
)
Generator - Install - For Business

Serving Hermosa, SD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Our professionals did great work and we're up front about what they were doing. It wound up being a simple fix. Will definitely hire them again."
Response time12 hrs
38 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for ROC Electric LLC
ROC Electric LLC
4.7(
13
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hermosa, SD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Tad was very professional as an electrician and offered excellent customer service. As a result thru his my remodel landed much better than I anticipated. And really enjoyed time with Tad. Huge thanks."
Response time11 hrs
Recommended by81%of homeowners
Request Quote
Avatar for Wilson Electric, LLC
Wilson Electric, LLC
5.0(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hermosa, SD and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"He did lighting in our for our restaurant . Dependable, friendly, knowledgeable."
200 Amp Service
RV Pedestal and 200 amp Service Termination
Site Develop - Angostura
Site Develop - Angostura
Site Develop - Angostura

+15

Response time30 mins
Recommended by100%of homeowners
Request Quote
Avatar for Viper Electrical Services, LLC
Viper Electrical Services, LLC
2.6(
4
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hermosa, SD and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Good job. They knew what I wanted done, and did the job quickly."
Recommended by100%of homeowners
Request Quote
Formanek Electric Service
New to Angi
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Hermosa, SD and surrounding areas

In business since 2019

Free estimates

Credit card accepted

Formanek Electric Service is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business. 10% military discount.

Response time10 mins
Request Quote
Generator Install questions, answered by experts

Many services include assembling the unit and securing it in the window. Confirm with your provider.

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.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

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.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Hermosa, SD homeowners’ guide to generator installs

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

See all articles