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Verified Reviews for Generator Install pros in Jefferson, WV

*The Angi rating for Generator Install companies in Jefferson, WV 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 Jefferson, WV 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 August 28, 2026

Find Generator install pros in Jefferson

Avatar for Montani Mechanical Group Llc
Montani Mechanical Group Llc
4.4(
46
)
Fixed Generator - InstallFixed Generator - Repair

Serving Jefferson, WV and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

Montani Mechanical Group, LLC, is committed to providing the highest quality work at the most cost effective price. We are locally owned and operated, and our fully licensed and insured service technicians, plumbers, and installers are some of the very best in West Virginia. We make customer satisfaction our highest priority. With a combined 40 years of experience in heating, cooling, plumbing, electric, and refrigeration, our company strives to provide both our residential and commercial customers the best experience in what can be very stressful times. \n

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+38

22 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for RDP Electrical Services Plus, LLC
RDP Electrical Services Plus, LLC
5.0(
21
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Jefferson, WV and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"Great, Roger came in a blinding snowstorm and fixed the generator!"
Recommended by100%of homeowners
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Avatar for Flash Electrical
Flash Electrical
4.8(
58
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Jefferson, WV and surrounding areas

In business since 2022

Free estimates

Emergency services offered

"I hired Josh for annual maintenance and inspections for my Generac 10000 kW generator. He was very nice and honest and I'am sure he will do very good work."
Troubleshoot Lighting
Troubleshoot Lighting
Outlet Install and LED bulb swap
Industrial Panel Build
Industrial Panel Build

+7

Response time7 hrs
Response rate93%
Recommended by96%of homeowners
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Avatar for Montani Mechanical Group LLC
Montani Mechanical Group LLC
4.9(
39
)
Fixed Generator - InstallFixed Generator - Repair

Serving Jefferson, WV and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"MMG did a great job all around with my AC repair. I've had them come out twice to work on my aging AC system. Each time they were out quickly, got the job done right, cleaned up after themselves, and were professional. These guys are my go-to for anything HVAC related. I recommend them to everyone."
After
Lowboy Hot Water Tank Installation
Before and After
After
Drain Cleaning

+38

1 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Empire Home Solutions LLC
Empire Home Solutions LLC
5.0(
5
)
Generator - Install - For BusinessPortable Generator - Repair

Serving Jefferson, WV and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Zach did a great job and completed everything he said he would. The price was comparable to others, with one added plus- no surprises! He charged exactly what he said he would. We are very happy with the results. Holes for butterfly anchors were visible and not filled, hence the 4.5, but this was in a garage and we easily puttied them after he finished. I would definitely recommend Empire Home Solutions and will call them again for future home upgrades."
Response time1 day
Recommended by100%of homeowners
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Avatar for West Virginia Electrical Services LLC
West Virginia Electrical Services LLC
5.0(
2
)
Portable Generator - Install

Serving Jefferson, WV and surrounding areas

In business since 2006

Free estimates

Small jobs welcome

"Very knowledgeable and explained what was required to complete the job, very reasonably priced, and completed the work very timely"
Response time2 hrs
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

The Jefferson, WV 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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