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Verified Reviews for Generator Install pros in Lakeside, MT

*The Angi rating for Generator Install companies in Lakeside, 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 Lakeside, 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 February 18, 2026

Find Generator install pros in Lakeside

Avatar for Great Northern Power LLC
Great Northern Power LLC
5.0(
6
)

Serving Lakeside, 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!

7 neighbors recently requested a quote
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Avatar for Synergy Electric
Synergy Electric
5.0(
7
)

Serving Lakeside, MT and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"Josef was professional, reasonable, and knowledgeable and did a great job replacing one of my panels with a generator cutoff switch. 100% will hire him again in the future."
Response time5 hrs
Response rate89%
4 neighbors recently requested a quote
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Avatar for Star Electric of Montana, Inc.
Star Electric of Montana, Inc.
4.7(
14
)

Serving Lakeside, MT and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Mitch from Star Electric was so helpful, prompt and easy to work with. He takes the time to explain things, is very reasonable and professional. Highly recommend"
Custom Fixtures
Custom Chandelier
Custom Chandelier
Custom Fixtures
Custom Fixtures

+15

Response time2 days
Recommended by100%of homeowners
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Avatar for Black Diamond Electrical
Black Diamond Electrical
5.0(
13
)

Serving Lakeside, MT and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"I hired Shawn to add a 220v outlet and some additional 110v outlets in my garage. He was always very quick to respond when I had questions. He finished the job extremely quickly and did an amazing job! I cannot recommend him enough. I’m very pleased with his work and would hire him again in a heartbeat!"
Response time2 days
Response rate85%
10 neighbors recently requested a quote
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Avatar for Lucky Electric LLC
Lucky Electric LLC
5.0(
7
)

Serving Lakeside, MT and surrounding areas

In business since 2017

Emergency services offered

Small jobs welcome

"Sheen did a great job, he completely replaced all of the wiring in my 1923 home as well as installed a new panel box. He was very professional and had an amazing work ethic. I will definitely use him for any electrical work I have in the future."
Panel rewire/retrofit
Response time5 hrs
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Showing 1-10 of 19
Generator Install questions, answered by experts

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

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.

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

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

The Lakeside, 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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