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

Serving Ravalli County, 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!

10 neighbors recently requested a quote
Yeti Electric
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Ravalli County, MT and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I can't thank Ryan enough for coming out to my in-laws home today. Finding a Service Electician in the Flathead Valley is almost impossible. We called at least 8 places and nobody could come out. Some said it would be a couple months. Ryan made time at the end of his workday to stop by on the way home to help us. He fixed our problem, and we were good to go in 30 minutes. I can't thank Ryan enough for going out of his way for us. The Valley needs more Service Electricians like this."
Response time1 day
Recommended by50%of homeowners
Avatar for Bowman Electric, LLC
Bowman Electric, LLC
5.0(
23
)
Fixed Generator - InstallPortable Generator - Install

Serving Ravalli County, MT and surrounding areas

In business since 2022

Credit card accepted

Offers commercial services

"Shain Bowman is wonderful to work with - he came to my house and installed a bunch of ceiling fixtures and then came back a week later to move some junction boxes for me. Shain is a great guy and a great electrician/small business owner - he answers his phone, he is prompt and he does what he says he is going to do AND he does it well. We are going to hire him to put in a complicated outdoor lighting system next spring."
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+19

Response time10 hrs
Response rate97%
Recommended by100%of homeowners
Avatar for Legend Electric 406
Legend Electric 406
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Ravalli County, MT and surrounding areas

In business since 2025

Free estimates

Small jobs welcome

If not located within the Missoula area, we do have a trip charge. Legend Electric 406 is dedicated to providing our customers with the best quality and\ncraftsmanship. We are here to build relationships with our customers and communities and to provide\nour employees with a great place to work. We look forward to working with you!

Response time7 hrs
Copper Canyon Electric Inc
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Ravalli County, MT and surrounding areas

In business since 2000

Free estimates

Credit card accepted

At Copper Canyon Electric Inc. we take on a wide range of electrical projects to include full installation for additions and remodels as well as generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We're committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. \n\n

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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.

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.

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.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Ravalli County, MT homeowners’ guide to generator installs

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