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Verified Reviews for Generator Install pros in Helena, MT

*The Angi rating for Generator Install companies in Helena, MT 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 Helena, MT 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 08, 2026

Find Generator install pros in Helena

Avatar for Great Northern Power LLC
Great Northern Power LLC
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Helena, MT and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Great Northern Power LLC is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

8 neighbors recently requested a quote
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Avatar for Independent Power
Independent Power
5.0(
5
)
Fixed Generator - Install

Serving Helena, MT and surrounding areas

Approved

In business since 1996

Free estimates

Small jobs welcome

Harness the power of nature and achieve energy independence with Independent Power, founded in Bozeman, Montana and providing the highest quality HVAC, solar and battery systems since 1996. Our team of experts designs and installs high-impact, durable heating & cooling, and solar energy systems, using cutting-edge technology. We can also integrate your system with battery storage, so you'll keep the lights on when the grid is down. Whether you're a homeowner, business owner, or organization, Independent Power can help you gain freedom from the traditional energy grid. We specialize in residential, commercial, and off-grid installations.

20 neighbors recently requested a quote
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Avatar for Power Block Electric, LLC
Power Block Electric, LLC
5.0(
1
)
Fixed Generator - Install

Serving Helena, MT and surrounding areas

In business since 2006

Free estimates

Offers commercial services

"He's very fastidious, detail oriented, and clean electrician. Super friendly and extremely responsive when you have questions. Very reasonably priced and incredible value for the level of service he provides. Knowledgeable, and seems like he could do pretty much anything!"
Response time10 hrs
Recommended by100%of homeowners
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Armko Construction and Electric
New to Angi
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Helena, MT and surrounding areas

In business since 2008

Free estimates

Armko Construction and Electric, has over 20 years of experience. We pride ourselves on quality work and friendly service. We always strive to make sure we keep everything organized, clean and our scheduling as convenient for you as possible. We do free estimates and always do our best to work with you to ensure you get exactly what you want out of your home. We are always professional, honest and up front about all costs, no hidden fees. Every job always has a custom feel, built with your thoughts and needs in mind. We have the knowledge to show you some options and to make helpful suggestions to generate new ideas. We look forward to working with you in the future and bringing out the full potential in your home.

Response time2 days
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Generator Install questions, answered by experts

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.

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.

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

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home. 

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.

The Helena, MT 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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