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Verified Reviews for Generator Install pros in Fairfield, MT

*The Angi rating for Generator Install companies in Fairfield, 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 Fairfield, 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 30, 2026

Find Generator install pros in Fairfield

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

Serving Fairfield, 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!

12 neighbors recently requested a quote
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Avatar for Caliber Electric, LLC
Caliber Electric, LLC
5.0(
30
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Fairfield, MT and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Great experience, No Short cuts. Very Friendly was very considerate of what family wanted and needed. Would recomend for all electrical work."
Stand-by Generator
Response time2 days
Response rate94%
Recommended by100%of homeowners
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Montana Power Solutions, LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Fairfield, MT and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

I've been working in the electrical industry since 2017 and am a licensed Master Electrician and Generac Service Dealer. Montana Power Solutions serves Helena and surrounding communities, with the ability to travel throughout the area for generator and electrical projects. My specialties include Generac generator installation, maintenance, troubleshooting, warranty service, electrical repairs, panel upgrades, and new construction. I take pride in quality workmanship, honest communication, and doing the job right the first time. My goal is to provide homeowners with dependable electrical and generator solutions they can trust when they need them most.\n

3 neighbors recently requested a quote
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Avatar for RB Electric, LC
RB Electric, LC
5.0(
21
)
Portable Generator - Install

Serving Fairfield, MT and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Review by Charles S. Bob was very professional and made time for our needed repair. We were surprised at his low cost and high professional knowledge and actions. We would highly recommend him for any electrical service."
BreakerPanBefore2
BreakerPanAfter2
ServiceBefore2
ServiceAfter2
ServiceBefore

+4

Recommended by100%of homeowners
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Bosch electrical services
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Fairfield, MT and surrounding areas

In business since 2023

Free estimates

Emergency services offered

Bosch E Services Llc 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.

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Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

The Fairfield, 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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