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Verified Reviews for Generator Install pros in White River Junction, VT

*The Angi rating for Generator Install companies in White River Junction, VT 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 White River Junction, VT 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 November 08, 2025

Find Generator install pros in White River Junction

McCormick Electrical, LLC
5.0(
4
)

Serving White River Junction, VT and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"Colin was prompt with his communication, responded within 24 hours to any inquiries, and made smart recommendations when we hired him to install our L2 Charger and replace a burnt-out switch in our kitchen. He worked smart & safe and finished them both in less time than I expected it to take. We would hire/recommend Colin to anyone seeking big or small project repairs."
Response time1 hour
Recommended by100%of homeowners
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Avatar for SW WOOD LLC
SW WOOD LLC
5.0(
1
)

Serving White River Junction, VT and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."
24 neighbors recently requested a quote
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Levi Electric
New to Angi

Serving White River Junction, VT and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Levi is a Master Electrician with over 10 years of experience in the electrical trade. He has primarily worked in high-end residential and custom homes, bringing strong expertise in electrical layout, lighting design, and coordination with insulation and building systems. Levi is highly knowledgeable in all aspects of residential electrical work, from rough-in to finish, and is committed to safe, code-compliant, and high-quality installations.

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KBB Building and Electrical LLC
5.0(
3
)

Serving White River Junction, VT and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Spencer and Logan O'Brien were amazing to work with. They, and their crew, were competent and trustworthy to be at our home during this construction job. Spencer is a very good communicator and responds to questions and requests in a timely manner. He was able to organize all the needed elements from land preparation to electrical to make the garage happen, leaving us with very little to worry about. We are completely happy with the end product of their labors and love how the new garage fits in with our existing home. We will absolutely look to O'Briens and Sons LLC for future projects around the home. Overall, the experience was professional, timely and a great investment! Thank you for making our garage come to life, Bill and Dierdra"
Response time4 hrs
Response rate100%
Recommended by100%of homeowners
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Avatar for Rockys Electric
Rockys Electric
New to Angi

Serving White River Junction, VT and surrounding areas

Free estimates

Warranties offered

Credit card accepted

\nRockys Electric LLC is a family-owned and operated electrical company established in 2023, located in West Rutland. They offer a variety of services including heat pump installation, residential wiring, troubleshooting, commercial wiring, generator installation, service upgrades, panel swap outs, and automotive wiring harnesses. The company prides itself on a quick response time and provides free estimates within one hour of travel to West Rutland.

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Generator Install questions, answered by experts

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

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 White River Junction, VT 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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