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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

Additional Photos
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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

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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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